TN C3 A3 LIBKARY CALIFORNIA STATE MINING BUREAU FERRY BUILDING, SAN FRANCISCO McN. HAMILTON State Mineralogist San Francisco] BULLETIN No. 65 [September, 1913 COMPLIMENTS ^ F F. McN HAMlirc StAtE MjMK^^ •'-!!> I ylineral Production for 1912 By E. S. BOALICH Statistician Fbund Wm. Richardson, Supebintbndent of State Pbintino sacramento, california 1013 T. ■ oy'^ '■y. yNlVERSi .LiFORNlA CALIFORNIA STATE MINING BUREAU FERRY BUILDING, SAN FRANCISCO McN. HAMILTON State Mineralogist San Francisco] BULLETIN No. 65 [September, 1913 Vlineral Production for 1912 By E. S. BOALICH Statistician Friend Wm. Richaedson, Superintendent of State Printing sacramento, california 1913 TABLE OF CONTENTS. CHAPTER I. Page tiSUMMARY OP THE MINERAL INDUSTRY IN CALIFORNIA DURING THE YEAR 1912 5 I ABULATION OF THE MINERAL PRODUCTION FOR 1912, AMOUNT AND VALUE 7 ! ABLE SHOWING COMPARATIVE VALUE OF MINERAL PRODUCTION, 1910, 1911, 1912 8 \BLE SHOWING COMPARATIVE MINERAL PRODUCTION OP THE VARIOUS COUNTIES IN CALIFORNIA FOR 1910, 1911, 1912 9 CHAPTER II. ITELS — Coal : 11 Natural Gas 11 Petroleum 12 Total Petroleum Production, 1875-1912 14 CHAPTER III. i metals- Antimony ^^ 15 Copper 15 Gold 16 Total Gold Production, 1848-1912 * 16 Iron 18 Lead 18 Molybdenum j 9 Platinum 19 Quicksilver 19 Silver 20 Tungsten 20 Tin 21 Vanadium 21 Zinc 21 , CHAPTER IV. j STRUCTURAL MATERIALS — Asphalt 22 Bituminous Rock 22 Brick 23 Cement 25 Total Cement Production, 1891-1912 25 Chrome 25 Crushed Rock. (See Stone Industry.) Granite. {See Stone Industry.) Lime 26 Magnesite 26 Marble 27 Onyx and Travertine 27 Paving Blocks. (See Stone Industry.) Sandstone 27 Serpentine 28 Slate 28 Stone Industry 28 Travertine. (See Onyx.) 1 CHAPTER V. INDUSTRIAL MATERIALS — Page Asbestos 3 4 Barytes 34 Bauxite •'54 Clay 35 Feldspar 35 Fuller's Earth 3G Gems 3C Graphite 3 7 Gypsum 38 Infusorial Earth 38; Limestone . ^ 39 Manganese 39 Mica 40 Mineral Paint 40 Mineral Water . 40 Pumice 41 Pyrite 41 Sand, Glass 42 Soapstone 42 Sulphur 42 Talc. {See Soapstone.) Tufa. {See Pumice.) CHAPTER VI. SALINES — Borax 43 Nitrates ; 43 Potash 43 Salt 43 Soda 44 CHAPTER VII. MINERAL production BY COUNTIES. .'. Page Xlameda 45 Alpine 45 Amador 45 Butte 46 Calaveras 46 Colusa 46 Contra Costa 46 Del Norte 47 El Dorado 47 Fresno 47 Glenn 48 Humboldt 48 Imperial 48 Inyo 48 Kern _^ 49 Kings 49 Lake Lassen Los Angeles Madera Marin Mariposa Mendocino 51 Merced ^1 Modoc ^1 Mono 51 Monterey 52 Napa 52 Nevada 52 Orange 53 APPENDIX Page Placer 53 Plumas 53 Riverside 54 Sacramento 54 San Benito 54 San Bernardino 55' San Diego 55 San Francisco 55| San Joaquin 58 San Luis Obispo 56 San Mateo 56 Santa Barbara 57 Santa Clara 57 Santa Cruz 57' Shasta 58 Sierra 58 Siskiyou 58; Solano 59 Sonoma 59 Stanislaus 59 Sutter 59 Tehama 60 Trinity 60 Tulare *>0 Tuolumne 60 Ventura 61 Yolo 61 Yuba 61 Unapportionbd 61 62 MINERAL INDUSTRY, CALIFORNIA, 1912. Data Compiled from Direct Returns from Producers in Answer to Inquiries sent out by California State Mining Bureau, Ferry Building, San Francisco. CHAPTER ONE. Taking the mineral industry in California as a whole the year 1912 was one of unexampled progress and prosperity. The greatest single product, petroleum, excelled even the remarkable rate of growth which it has manifested during the past ten years. "While the average price per barrel received for crude oil at the wells showed a slight decline as compared with that of the previous year, the consumption increased at a greater rate than the production, and the threatened oversupply, ^vhich seemed to be imminent at the end of 1911, was entirely dissi- pated. Development of the light gravity oil districts of the State has been active and most encouraging results have ensued. This fact, taken with the ever growing demand for crude petroleum and all its deriva- tives has given an added impetus to the industry and the present trend of both production and price is decidedly upward. Petroleum leads all other mineral products of the State by a wide margin, the value for 1912 being $41,868,344. Next in importance comes gold with an output of $19,713,478. The great deep mines of the State maintain a steady output which is 31' I nothing less than remarkable. At several properties extensive develop- ji| ment work has been done during the year with an idea of determining jiji the probability of obtaining continued values at depth, with most jjp satisfying results. While the zenith of the dredge production is prob- 51, ably at hand, increased efficiency in methods has offset the fact that ^: the richest of the gravel deposits have been rather completely worked o!|' out. There is at present nothing to indicate any decrease in Cali- fornia's output of the precious metal. Cement ranks third with an output valued at $6,074,661; copper is number four on the list with $5,638,049. Crushed rock, brick and borax follow, in the order of their import- ance, each with a production worth over the million dollar mark. Every one of California's fifty-eight counties contain mineral deposits of some description. During 1912 fifty-six counties produced commercially one or more mineral substance. b MINERAL INDUSTRY OF CALIFORNIA. The total value of these minerals was $88,972,385, as compared wit) $87,497,879 for 1911, an increase of $1,474,506. These figures do not include value of asphalt because of the fact that the asphalt used in the State is a refined product and as far as possible all data in thi^ report refers to Crude Materials, with values of same at the PROPERTY. In this connection, however, it is worthy of note that the asphalt production for 1912 amounted to approximately 250,000 tons, with a total value of $2,500,000. This item is often included in| estimating the mineral output for the State and it is well to bear m mind the fact that it is omitted in the annual totals above quoted. While the more prominent and well known minerals show a consist- ently increasing production, it is gratifying to note that the leas common metals and industrial materials are also coming in for their share of attention. Zinc, tungsten, marble, soapstone, pumice, and many other substances exhibit an increased production. The immense iron deposits practically untouched as yet; the mountains of building stone of every description; the inexhaustible deposits of oil, gold and copper; the millions of acres of saline deposits in the desert regions, all go to prove the truth of the statement that California's wonderful record as a mineral producer will increase, rather than diminish, foi many years to come. Borax, magnesite and chrome production for the United States come solely from California. Eighty per cent of the domestic supply of quicksilver is mined here ; the same figures hold true in the case of platinum; tungsten is produced in but two or three other States. California leads all other states in the Union in the value of petroleum and gold produced; is first of all states west of the Mississippi in the value of her total mineral production, and is only outranked by a ie^ of the great iron and coal producing states of the East. Kern leads all other counties in petroleum production; Amador and Yuba are close rivals for first place in gold output; Shasta produces] 80 per cent of the copper total ; Los Angeles leads in brick and crushed rock ; Inyo is first in borax, lead, soda and zinc ; San Benito is first in quicksilver production; San Diego County produces half of the gems found in the State; Placer is first in granite and building stone; Santa Cruz in lime; Tulare in magnesite; Tuolumne in marble; Ala- meda in salt, and Colusa in sandstone. STATE MINING BUREAU STATISTICS. The following table shows the yield of mineral substances of Cali- fornia for 1912 as compiled from the returns received at the State Mining Bureau, 1 iicers : San Francisco, in answer to inquiries sent to pro- Substance Amount Value ! Asbestos 90 tons 564 tons 44,073 tons 42,135 tons 337,233 M 6,198,634 bbls. 1,270 tons 199,605 tons 14,848 tons 34,169,997 lbs. 1,382 tons 876 tons $2,700 00 IBarytes 2,812 00 Bituminous rock _ » . _ 87,467 00 : Borax 1,122,713 00 : Brick ._ 2,940,290 00 Cement _ _ 6,074,661 00 Chrome 11,260 00 ! Clay — _ 215,683 00 1 Coal - 1 Copper 39,092 00 5,638,049 00 1 Feldspar 6,180 OO i Fuller's earth 6,500 00 iGems - 23,050 00 ; Gold __ 19,713,478 00 ' Gypsum - 37,529 tons 4,129 tons 2,508 tons 1,370,067 lbs. 522,118 bbls. 613,375 tons 10,512 tons 22 tons 27,820 cu. ft. 300 tons 2,497,794 gals. 117,388 00 [Infusorial earth 17,074 OO 'Iron ore _. _ ! Lead _ _ 1 Lime 1 Limestone _ _ ; Magnesite , Manganese 2,508 00 61,653 OO 464,440 00 570,248 OO 105,120 00 400 00 • Marble 74,120 00 i Mineral paint _ __ ' Mineral water . 1,800 00 529,384 00 ' Natural gas 940,076 00 Petroleum 89,689,250 bbls. 603 oz. lOO tons 69,872 tons 20,600 flasks 185,721 tons 13,075 tons 66,487 cu. ft. 41,868,344 00 Platinum _ w. i Pumice 19,731 OO 2,500 00 [ Pyrite ; Quicksilver _ Salt .__ 1 Sand, glass - 203,470 OO 866,024 00 383,370 00 15,404 00 [ Sandstone 1 Silver 22,574 00 799,584 00 ' Soapstone i Soda 1,750 tons 7,200 tons 8;042"tons" 4,331,391 lbs. 7,350 00 37,094 00 Stone industryf Tungsten§ 5,473,928 00 206,000 00 '< Zinc 298,866 00 Total value $88,972,385 00 tincluding granite, macadam, rubble, paving blocks, sand and gravel. §Quantity of crude ore mined. MINERAL INDUSTRY OF CALIFORNIA. The following table shows the comparative value of minerals pro- duced in California during the years 1910, 1911, and 1912: 1911 Asbestos Barytes Bituminous rock Borax Brick Cement _. Chrome Clay _ Coal _„ Copper Crushed rock Feldspar Fuller's earth _„ Gems Gold Granite Gypsum Infusorial earth . Iron ore _ Lead Lime Limestone Macadam Magnesite Manganese Marble Mineral paint „. Mineral water „. Natural gas Paving blocks — Petroleum ___^__. Platinum Pumice Pyrite Quicksilver Rubble Salt Sand, glass Sand, quartz Sandstone Silver Slate Soapstone _. Soda _ _. Stone industry* . Tungsten Zinc 19, 37: $20,000 00 5,640 00 165,711 00 177,960 00 934,731 00 485,715 00 ! 9,707 00 ! 324,099 00 23,484 00 680,641 00 1 5,720 00 3,820 00 237,475 00 715,440 00 417,898 00 129,152 00 17,617 00 900 OO 134,082 00 058,891 00 104,526 00 I 113,887 00 ; 4,235 00 ! 50,200 00 : 2,040 OO i 522,009 00 i 676,367 00 198,916 OO 689,542 00 8,386 00 None 179,862 00 i 799,002 00 ; ,673,164 00 : 395,417 00 i 8,165 00 10,100 00 80,443 OO 993,646 00 8,000 00 7,260 00 11,862 00 $500 00 2,207 00 117,279 00 1,456,672 00 2,638,121 00 9,085,625 00 14,197 00 252,759 00 18,297 OO 4,604,753 00 3,610,357 00 4,560 00 5,294 00 51,824 00 19,738,908 00 355.742 00 101,475 00 19,670 00 558 00 63,173 00 390,988 00 452,790 00 6 67,430 00 40 OO 54,103 00 1,184 00 590,654 00 491,859 OO 210,819 00 40.552,088 OO 14.873 00 None 182,954 00 879,205 00 e 324,255 00 8.672 00 None 127.314 00 673,336 00 None None 52,887 00 208.245 00 None 127.706 00 152,751 OO $2,700 00' 2,812 00 87,467 00 1,122,713 00 2,940,290 00 6,074,661 00 11,260 00 215,683 00 39,092 00 5,638,049 00 2 6,180 00 6,500 00 23,050 00 19,713,478 00. 117,388 00 17,074 00 2,508 00 61,653 00 464,440 00 570,248 00' 105,120 00 400 00 ■ 74,120 00 1,800 00 529,384 00 940,076 00 1 41,868,344 00] 19.731 OOj 2,500 00 203,470 00 ! 866,024 00 9 383,370 Of 15,404 NOIlr 22,574 0^ 799,584 (H Non' 7,350 IH 37,094 ('I 5,473,928 Oi 206,000 C" 298,866 0- Totals $86,293,957 00 : $87,497,897 00 $88,972,385 0' Asphalt _ — _ i 2,125,122 00 ', 2,250,000 00 2,500,000 f" Total including asphalt $88,419,079 00 $89,747,879 00 ; $91,472,385 00 , ^Given as macadam and rubble. ^ 3 e • * Included In crushed rock. •Stone Industry Includes all crushed rock ' ^Included in "stone Industry." ^Included In lime. granite, paving blocks, etc. STATE MINING BUREAU STATISTICS. The following tabulation shows the comparative mineral production Ml the various counties of the State during the three years, 1910, 1911, .iiid 1912: County Alameda _ __. Alpine Amador Butte Oalaveras Oolusa Contra Costa „. Del Norte EJ Dorado _ Fresno Glenn Humboldt Imperial _„ Inyo - Kern Kings Lake _— Lassen Los Angeles Madera Marin _._ Mariposa Mendocino Merced •Modoc : Mono _„ ! Monterey , Napa ! Nevada Orange •. ; Placer _ Plumas _ _-. ' Riverside I Sacramento San Benito San Bernardino . San Diego San Francisco — San Joaquin San Luis Obispo. San Mateo Santa Barbara _. Santa Clara Santa Cruz Shasta . Sierra Siskiyou Solano :. Sonoma Stanislaus _ Tehama Trinity .._ _.. Tulare Tuolumne "Ventura Tuba Unapportioned _. $1,205,387 00 $799,639 00 2.785,767 GO 2,529,179 GO 2,026,166 00 148,005 00 484,923 00 5,845 OO 194,631 00 9,505,699 00 34,020 00 77,437 00 97,656 00 704,473 00 19,614,014 00 10,085 00 142,427 00 83,152 00 5,525,317 OO 133,766 00 183,885 00 346,245 00 500 00 71,064 00 5,513 00 445,115 00 162,523 00 244,410 00 2,553,204 00 3,220,164 OO 583,659 00 200,870 00 507,406 00 1,660,970 00 584,343 00 447,836 00 374,874 00 120,126 00 376,149 00 215,322 00 279,872 00 5,334,960 00 420,782 00 400,794 GO 8,203,677 00 313,365 00 527,178 00 255,169 OO 283,113 00 223,061 00 4,400 00 508,433 00 206,050 00 755,591 00 392,974 00 3,209,645 OO 9,487,888 00 2,993,670 00 2.406,856 00 1,970,059 00 138,227 00 594,256 00 1.750 00 153,918 00 9,711,463 00 51,430 00 76,858 00 105,044 00 710,033 OO 21,176,534 00 900 00 100,296 00 1 5,407.863 00 80,201 00 232,731 00 175,752 OO 1,600 00 49,548 00 20,238 00 298,405 00 74,536 00 220,399 00 2,219,214 00 4,113,585 OO 539,246 00 230,010 00 622,489 00 2,109,678 00 558,846 00 710,108 00 419,008 00 119,636 00 189,593 OO 75,556 OO 233,985 00 3,411,107 00 461.611 GO 338,814 00 5,406,461 OO 467,117 00 553.037 00 188,848 00 238,610 00 315,219 00 500 00 620,950 GO 158,335 00 1.240,734 00 362,810 00 3,011,689 00 11,028,877 00 $794,961 00 2,925,202 00 2,403,675 00 2,051,781 00 70,165 00 829,811 00 3,950 00 122,001 00 8,897,685 00 32,950 00 268,116 00 30,000 GO 483,330 00 23,097,003 00 1,850 00 123,286 00 "5,594;5i3"0O 112,285 GO 122,200 GO 214,294 00 300 00 45,000 00 29,187 GO 454,268 00 132,749 00 266,708 00 2,108,543 00 4,518.275 00 881,537 00 196,997 GO 782,627 00 2,171,399 00 494,068 GO 1,428,057 00 305,683 OO 151,147 00 210,040 00 31,564 00 216,582 00 4,111,258 00 557,585 00 270,207 00 5,825,819 GO 736,423 00 598,713 00 203,073 00 346,306 00 295,673 GO 1,300 00 733,755 OO 142,890 00 1,353.706 00 595,399 00 2,775,132 00 7,821,357 00 Totals _ $88,419,079 00§ $87,497,879 00 $88,972,385 00 ♦Included in Stanislaus. §Ineluding asphalt. ^Included in Colusa. 10 MINERAL INDUSTRY OP CALIFORNIA. The figures opposite * ' unapportioned " are necessary because of fact that some branches of the mineral industry are so centrali: that if the value of their output were listed under the county fr( which they come private business would be made public. For t reason there are several instances where the real value of the coui mineral yield is much greater than is shown in the above summai STATE MINING BUREAU STATISTICS. 11 CHAPTER TWO. FUELS, (t. Reference- State Mineralogist Eeport VII, XII, XIII. Twenty-five, out of the fifty-eight, counties of California contain coal deposits, many of them undeveloped, and almost all of an interior quality. Coal was first commercially produced in the State in 1861 and for many years previous to the introduction of petroleum as a fuel was an important factor in the mineral industry of the State. At the present time the output is small and the price received relatively low, and fluctuating. During 1912 the total coal production amounted to 14,848 tons valued at $39,092, an average of $2.63 per ton, as com- pared with 11,047 tons produced in 1911 having a spot value of $18,297, or $1.65 per ton. This is an increase of 3,801 tons in amount, and $20,795 in value, the excessive increase in price being due to the production of a better grade of coal than was mined during the pre- ceding year, as well as to a noticeable strengthening in the local demand, I Natural Gas. Reference: State Mineralogist Report VII, X, XII. Bulletins 3 and 13. Natural gas valued at $940,076 was used as a fuel, for lighting, and for other purposes, including the manufacture of gasoline, during 1912, , in California. This shows a great increase over the value of the 1911 product which was $491,859. I Active steps have been recently taken toward the conservation of ! natural gas in the State, untold quantities of which have been lost and wasted in the past. It is impossible to arrive at even approximate figures for amount of gas used as in many cases the operators make no attempt to measure ! it; the value as well, in numerous instances, represents merely an approximation, especially in the case of oil operators who utilize a portion of the gas which is encountered as fuel under their boilers and figure its value in terms of what it would cost to obtain the required power in some other wav. I 12 MINERAL INDUSTRY OF CALIFORNIA. Production for 1912 by counties, is given in the following tabulatedj form: County Value Fresno $21,380 00 150 00 325,484 00 1,650 00 78,672 00 5,250 00 96.000 00 145,166 00 253,633 00 8,528 00 4,163 00 Humboldt Kern „_ Kings --_ _ _ Los Angeles Orange - _ • _ _ Sacramento San Joaquin — Santa Barbara Solano Ventura Total - - __ $940,076 00 Petroleum. Eeference: Bulletins 3, 11, 16, 19, 31, 32, 63. State Mineralogist Report IV, X, XII, XIII. Petroleum production in California during 1912 amounted to a total* of 89,689,250 barrels, valued at $41,868,344, or an average of $0.467| per barrel as compared with 84,648,157 barrels produced in 1911 worth $40,552,088 with an average price of $0,479 per barrel. This is ani increase in amount of 5,041,093 barrels and in value of $1,316,256, but a decrease in the price received per barrel of $0,012. Of the total number of barrels produced in 1912, 6,050,186 were used as fuel in the field. This item, which has always been a com- paratively large one, is gradually diminishing on account of the grow- ing use of electricity and gas in the oil fields for power purposes. Considerable successful development work was done during the year^ in the lighter oil sections of the State, and in the face of a decrease in the average price per barrel for the State, Orange, Santa Barbara andf Ventura counties reported an increase in price, as well as production.! The only section which suffered a decreased production was Los Angeles County — this is due partly to the fact that the city field isj rapidly becoming more valuable as real estate than it is as oil territory, and more especially because w^e have some of the oldest producing wells in the State, and many of them are rapidly approaching the end of their days as profitable producers. The following table gives in detail the production and value of petroleum produced in California in 1912, and the corresponding figures for 1911, by county, as well as the average prices received, with increase, or decrease, in each instance: STATE MINING BUREAU STATISTICS. Fresno County. IS Amount, barrels iail ' 19,499,611 1912 1 19,510,932 Value $9,344,085 8.487,255 11,321 increase $856,830 decrease Average Used as fuel in field .479 .435 1,250,000 i 1,250,566 .044 decrease Kern County. 1911 46,562,825 1912 - 51,448,067 4,885,242 increase $20,207,906 21,762,532 $1,554,626 increase .432 .423 .009 decrease ! Orange County. 1911 1912 6,345,275 6,704,421 359,146 increase $4,097,980 4,478,553 .645 .668 $380,573 increase I .023 increase San Luis Obispo County. 1911 1912 38,092 2,129 $25,146 1,469 35,963 decrease $23,677 decrease 2,993,600 3,549,916 Los Angeles County. 1911 - - ■ 4,924,288 $3,313,972 2,798,384 .672 .624 375,000 1912 1 4,484,590 358,240 1 439,698 decrease $515,588 decrease .048 decrease 418,000 417,388 Santa Barbara County. 1911 1912 6,766,156 6,862,719 $3,204,717 I 3,747,045 1 $542,328 increase i . = .488 ....... ..564 -.. = ... .- 431,000 "^.-432,787 96,563 increase .058 increase Santa Clara County. 1911 1912 12,828 14,092 $8,505 8,295 $210 decrease :::::: 1,264 increase Ventura County. 1911 1912 499,082 662,300 $349,777 584,811 .700 .883 32,400 41,289 1 163,218 increase $235,034 increase .183 increase State Totals. 1911 1912 84,648,157 89,689,250 1 $40,552,088 41,868,344 .479 .467 5,500,000 6,050,186 1 5,041,093 increase 1 $1,316,256 increase .012 decrease 14 MINERAL INDUSTRY OF CALIFORNIA. The annual petrolo^m production, in barrels, since the inception oi the industry in California follows, with the amount credited to th; year 1875 representing total production up to, and including, that dat( Year Barrel Year Barrel 1875 175.000 12,000 13,000 15,227 1 19,858 1 40,552 i 99,862 1 128,636 142,857 262,000 325,000 377,145 678,572 690,333 1 303,220 307,360 323,600 385,049 470.179 783.078 1895 _-_ 1,245.33! 1876 — -- 1896 _ 1897 1898 -_- 1899 — _ 1900 -_ 1,257.781 1877 1.911,56! 1878 1879 - — 2,249.06^ 2,677.871 4.329.95( 7,710.311 14.356,91( 24.340.835 29.736,0a 34.275.70i 32.624,00( 40,311,17], 48.306,9H 58.191,72( 77.697.56lf 84.648.15: 89.689.25(, 1880 1881 1901 1882 1902 1883 1903 _-. 1884 1904 1885 1905 _ 1886 1906 _ 1887 — - 1907 - 1888 - 1908 1889 1909 1890 1910 1891 1911 1892 1912 - - 1893 Total (barrels) _ 1894 561,112,671 The value of the crude oil output during the early years of its pro- duction is a difficult quantity to arrive at accurately. Taking the total value given in Bulletin No. 60, which includes the years 1887-1909, as a basis, the grand total value of the petroleum produced in Californif: during the past twenty-five years, is as follows : Year 1887-1909 - 1910 1911 1912 Total Value $136,693.22:- 37.689.54' 40,552.081^ 41,868,34^ $256,803,2a STATE MINING BUREAU STATISTICS. 15 CHAPTER THREE. METALS. Antimony. Eeference: Bulletin 38. State Mineralogist Report XII, XIII. Deposits of antimony ore are located in Inyo, Kern, Merced, Eiver- le and San Benito counties. There has been no commercial produe- II on of the metal in California since 1901, principally because of the fact that prices have been too low to make the mining of the ore profitable. Copper. Reference: Bulletins 23 and 50. State Mineralogist Report XIT, XIII. For the calender year 1912 the California production of copper amounted to 34,169,997 pounds, valued at $5,638,049 as compared with :>G,838,024 pounds produced in 1911 worth $4,604,753. The increased value, in spite of the decrease in production, was made possible on account of the advance in price from 12^ cents per pound in 1911, to 16J cents per pound in 1912. Copper is widely distributed throughout the State in the following iieral districts: The Shasta County copper belt; the Coast Range posits, running from Del Norte more or less continuously to San Luis Obispo County ; the Sierra Nevada belt, starting in Plumas County and continuing in a general southerly direction through the Mother Lode counties and ending in Kern ; the Eastern belt, in Mono and Inyo counties; and the Southern belt, which is located in San. Bernardino, Riverside and San Diego counties. By far the most important belt is the one located in Shasta County. Copper production has been far below normal in the State during the past few years on account of the enforced closing of some of the largest smelters owing to the alleged damage done to the surrounding agricul- tural products by the smelter smoke. A great deal of money has been spent in an effort to do away with the obnoxious fumes with consid- erable success, and the present outlook is for a greatly increased pro- I duction in the near future. 16 MINERAL INDUSTRY OP CALIFORNIA. Twelve counties reported copper production for 1912 as is shown in the following table: Coun^ Amount Value Amador 175.608 lbs. 6,125.415 lbs. 48.584 lbs. 248.129 lbs. 284,587 lbs. 8,179 lbs. 78.170 lbs. 6,963 lbs. 6,000 lbs. 1,937,185 lbs. 25,249,892 lbs. 1.285 lbs. $28,975 00 1,010,693 00 8,016 00 40,941 00 46,957 00 1,350 00 12,898 00 1,149 00 990 00 319,636 00 4,166,232 00 212 00 Calaveras Inyo _ _ _ Madera Mariposa III Mono _- _ _ Placer „ Plumas Riverside _ _ San Bernardino Shasta _ Sierra _ Totals 34,169.997 lbs. $5,638,049 00 Gold. Reference: All State Mineralogist Reports. Bulletins 36, 57 and 45. The California State Mining Bureau has never independently col- lected statistics of gold and silver production. Gold, silver and plati- num figures in this Bulletin are obtained from the United States Geological Survey. The following table shows gold production in California, by county, for the year 1912 : County Value County Value Alpine 1 $2,796,194 00 2,346,229 00 962,145 00 3 940 00 1 Nevada $2,081,958 00 367,383 00 193 237 Oo Amador _ _ 1 Placer _ j Plumas Butte Calaveras Riverside 20 202 0(t Del Norte - 1 Sfiprnmpntn 1,712.587 00 293,900 00 6 El Dorado 105,565 00 !' San Bernardino 6 094 00 San Luis Obisno Fresno > _ _ Humboldt 31,271 00 369,758 00 1 Shasta 986,803 00 Inyo Sierra 732,988 00 Kern 830,420 00 Isiskivon 472 314 00 Los Angeles - 2 9,162 00 Stanislaus' - 227 527 00 Madera Trinity 723,503 00 Mariposa Merced 160,541 00 3 27,893 00 377,518 00 7,647 00 Tuolumne Yuba _ Total 1 1,113,291 00 2,753,408 00 Mono - - $19,713,478 00 Monterey* iProduct Included In Stanislaus. ^Product Included In Monterey. 'Product Included In Stanislaus. *Including Los Angeles and San Luis Obispo. "Product Included In Monterey. •Including Alpine and Merced. Total Gold Production of California. The following table was compiled by Chas. G. Yale, of the Division of Mineral Resources, U. S. Geological Survey, but for a number of years Statistician of the California State Mining Bureau and the U. S. STATE MINING BUREAU STATISTICS. 17 :^Iint at San Francisco. The authorities chosen for certain periods were: J. D. Whitney, State Geologist of California; John Arthur Phillips, author of ''Mining and Metallurgy of Gold and Silver" (1867) ; U. S. Minin g Commissioner R. W. Raymond; U. S. Mining Commissioner J. Ross Browne; Wm. P. Blake, Commissioner from ; California to the Paris Exposition, where he made a report on i "Precious Metals" (1867) ; John J. Valentine, author for many years ' of the annual report on precious metals published by Wells Fargo & ; Company 's Express ; and Louis A. Garnett, in the early days manager of the San Francisco refinery where records of gold receipts and ship- ; ments were kept. Mr. Yale obtained other data from the reports of the i Director of the U. S. Mint and the director of the U. S. Geological ' Survey. The authorities referred to, who were alive at the time of the original compilation of this table in 1894, were all consulted in person or by letter by Mr. Yale with reference to the correctness of their il)lished data, and the final table quoted was then made up. The ,i mires of the last seven years are those prepared by the U. S. Geo- logical Survey: Year Value 1 Year 1 Value 1848 1 $245 301 00 ■ 1882 - — $17,146,416 00 1849 -> - _ _ 10,151,360 00 41,273.106 00 75,938,232 00 81,294.700 00 67,613,487 00 69,433,931 OO 55,485,395 00 57,509,411 00 43,628,172 00 46.591.140 00 45,846,599 00 44,095,163 00 41,884,995 OO 38,854,668 00 23,501,736 00 24,071,423 00 17,930,858 00 17.123.867 00 18,265.452 00 17,555.867 00 18.229,044 00 17,458,133 00 17,477,885 00 15.482,194 00 15,019,210 00 17.264.836 00 16.876.009 00 15.610.723 00 16,501,268 00 18.839.141 00 19,626.654 00 20,030,761 00 19,223.155 00 1883 24.316,873 00 1860 „ 1884 „ 13.600,000 00 1851 1885 12.661.044 00 1852 _ __ 1886 - 14.716.506 00 1853 _ . 1887 13.588.614 00 1854 - 1888 12.750.000 00 1855 1889 11,212.913 00 1856 1890 12.309,793 OO 1857 __._ 1891 — 12.728.869 00 1858 _- _ 1892 12.571.900 00 1859 ._ 1860 1861 1862 .. 1893 12.422,811 00 1894 — 13,923,281 00 1895 - 15.334,317 00 1896 • 17.181,562 00 1863 1897 - — 15.871,401 00 1864 ___ 1898 15,906,478 00 1865 1899 - 15.336.031 00 1866 1900 1901 1902 15.863.355 00 1867 16.989,044 00 1868 - 16,910,320 00 1869 1903 _ 16,471.264 00 1870 _ 1904 19,109.600 00 1871 1872 1873 1874 1875 1876 1905 - 19.197.043 00 1906 1907 1908 1909 1910 1911 1912 Total 18,732.452 00 16.727.928 00 18.761.559 00 20,237,870 00 19.715.440 00 1877 ___. 19,738.908 00 1878 .- 19,713,478 00 ! 1879 1880 ! 1881 __ $1,567,680,946 00 2— MB 18 MINERAL INDUSTRY OF CALIFORNIA. It will be observed that the largest production for any one year was in 1852, when it reached $81,294,700. This was at the time of the most active development of the superficial placers, when thousands of men were at work with pan, rocker, long-torn and sluice, and even the hydraulic method had been introduced in a small way. Iron. Reference: State Mineralogist Reports II, IV, V, X, XII, XIII. Bulletin 38. Production of iron ore in California during 1912 amounted to 2,508 tons, having a spot value of $1 per ton. This is a very notable increase over the 1911 production of 558 tons. There was a small out- put of this mineral in 1893 and nominal amounts have been produced intermittently since that time, the entire production previous to 1912 amounting to 2,095 tons, or 413 tons less than for the year just past. Vast deposits of iron ore, distributed through thirty-one counties of the State, are already known. With improvements in the metallurgy of iron and steel, the changes to be wrought in commercial conditions by the opening of the Panama Canal, and the gradual depletion of the iron ranges of the East, this branch of the mineral industry in California should soon become one to rank with petroleum and gold in the value of its output. ' Lead. Reference: State Mineralogist Reports IV, VIII, X. Thirteen counties in California reported a production of lead for 1912. In four instances, namely, Butte, Calaveras, El Dorado and Placer counties, the output was negligible being recovered from con- centrates shipped to the smelter and having values of but a few dollars. The total lead production for the State amounted to 1,370,067 pounds, valued at $61,653, as compared with an output of 1,403,839 pounds worth $63,173 in 1911. The average price of lead during 1912 was 4 J cents per pound. Tabulated county returns are as follows: County Amount Value Tnvo - « 1.207.593 lbs. 19,664 lbs. 5.533 lbs. 23,936 lbs. 1.785 lbs. 5,856 lbs. 929 lbs. 94,852 lbs. 9,919 lbs. $54,342 GO Kern _ _ 885 00 Madera 249 00 Mono __— — 1,077 00 Nevada « »_ » _ _ _ _ _ « 80 00 Plumas « 264 00 Riverside » »_->_ «_«___.._ 42 00 San Bernardino _>— — — 4,268 00 Sierra 446 00 Totals 1,370,067 lbs. $61,653 00 I STATE MINING BUREAU STATISTICS. 19 Molybdenum. Deposits of molybdenite have been observed in different localities in California in the past but no molybdenum has been commercially pro- duced, to date. It is used to a small extent in steel making and has recently been successfully used as an improvement over tungsten in electric light globes. Some development work has been done on molyb- denum deposits in Kern County during the past year. Platinum. Reference: State Mineralogist Reports XII, XIII. Bulletin 38. Platinum production in California during the year 1912 amounted to 603 ounces, worth $19,731, as compared to 511 Troy ounces, valued at $14,873, in 1911. Platinum yield in the State is largely due to its incidental recovery alonir with placer gold in various dredging and hydraulic fields. Quicksilver. Reference: State Mineralogist Reports IV, X, XII, XIII. Bul- letin 27. Quicksilver production in California during 1912 amounted to 20,600 flasks having a total value of $866,024, an average of $42.04 per flask, as compared with the 1911 output of 19,109 flasks valued at $879,205. The average price per flask, of 75 pounds, suffered a decrease of $3.97 in 1912, as compared with the previous year, thus causing a decrease of 1.5 per cent in the total value of the metal produced while the amount increased 7.8 per cent. Eight counties reported a production of quicksilver during 1912 against nine for 1911. Colusa and Santa Barbara counties had a small output in 1911 which was not duplicated last year, and during 1912 Fresno County operators shipped a quantity of the metal for the first time. The eight producing counties, in the order of their importance in this branch of the mineral industry, are as follows: San Benito, Santa Clara, San Luis Obispo, Sonoma, Fresno, Napa, Lake and Trinity. In addition to the above, owners of quicksilver properties from the foUowinsT tweh'e counties answered inquiries sent out by the State Mining Bureau: Colusa, El Dorado, Kings, Monterey, Modoc, Santa Barbara, Shasta, Siskiyou, Solano, Stanislaus and Yolo. In round numbers 80 per cent of the quicksilver production of the United States comes from California. 20 MINERAL INDUSTRY OF CALIFORNIA. The following table shows the California production by counties, in 1912, with the increase or decrease in amount as compared with 1911 : County Flasks Value Increase Decrease Colusa 1 5 flasks Fresno 336 209 287 9,743 666 $14,125 8,786 12,065 , 409,596 1 27,998 336 flasks Lake _ 690 flasks Napa 147 flasks San Benito 32 flasks San Luis Obispo 97 flasks Santa Barbara 50 flasks Santa Clara 8,695 646 18 365,538 1 27,158 758 1,162 flasks 552 flasks Sonoma _ Trinity 26 flasks Totals -,— ; 20,600 $866,024 1,491 flasks Silver. Reference: State Mineralogist Reports IV, VIII, XII. Silver production in California during 1912 amounted to $799,584 as compared with the output of $673,336 in 1911, according to the data collected by the United States Geological Survey, from which source these figures, along with those of gold and platinum, are derived. The average price for silver for 1912 was 61|^ cents, or 8J cents per ounce higher than for 1911. Tabulated county returns are as follows: County Value County Value Alpine 1 $32,037 00 5.567 00 70,748 00 10 00 843 00 23 00 150 00 45.316 00 11,480 00 a 1,162 00 6.796 00 s 494 00 70,602 00 67 00 Nevada $22,830 00 Amador - Placer 4,791 00 Butte Plumas 957 00 Calaveras Riverside 254 GO Del Norte - ' Sacramento 3.544 GO El Dorado ---- San Bernardino 49,962 00 San Luis Obispo Humboldt : Shasta _ ___ , Sierra 425,382 00 Inyo - - 2.777 00 Kern _ 1 Siskiyou 2.980 GO Los Ansreles - - - -- Stanislaus^ 1.974 00 Madera Trinity _ ___ 7.494 GO Mariposa Tuolumne 25.146 GO Merced - Yuba 6,198 00 Modoc Total $799,584 00 Monterey* - «_—.———— ^Product Included in Stanislaus, ^pro^uct included in Monterey. ^Product included in Stanislaus. *Includlng Los Angeles and San Luis Obispo. ''Product included in Monterey. 'Including Alpine and Merced. Tungsten. Reference: Bulletin 38. Tungsten ore to the amount of 8,042 tons containing tungsten valued at $206,000 was mined in California during 1912. The value of the tungsten output for 1911 was $127,706. STATE MINING BUREAU STATISTICS. 21 This metal is used largely in the steel industry and also as a filament in electric incandescent lamps. Tungsten ores are sold per unit of tungstic trioxide, marketable ores arrying at least 45 per cent of WO^. Tin. While there are several deposits of tin ore in the United States the production for the entire country is practically nothing. A small deposit of cassiterite near Corona, in Eiverside County, was worked in the early nineties and tin to the value of $59,964 was produced. The deposit is very small and irregular and no development work has been done on it for many years. Traces of tin ore have also been discovered in Orange County. Vanadium. There is a growing demand for vanadium for use particularly in the eel industry. California has never produced this metal commercially, but deposits of vanadium ores are at present being exploited in two or three localities. Zinc. Beference: Bulletin -38. During 1912 zinc to the amount of 4,331,391 pounds, with a total value of $298,866 was produced in California, as compared with 2,679,- 842 pounds worth $152,751 in 1911. The average price per pound received for zinc during 1912 was $.069. A small quantity of this metal was mined in the State in 1906-8 and with this exception 1911 was the first year to show returns from this branch of the mineral industry. As will be noted the output was practically doubled in 1912 as compared with the previous year. Zinc ores are found in Inyo, Orange, San Bernardino and Shasta counties ; zinc is also an ingredient of many copper and other ores in. various portions of the State. 22 MINERAL INDUSTRY OF CALIFORNIA. CHAPTER FOUR. STRUCTURAL MATERIALS. Asphalt. Reference: State Mineralogist Reports VII, X, XII, XIII. Bul- letins 16 and 32. Deposits of natural asphalt have been found in Kern, Los Angekv . Monterey, San Luis Obispo, Santa Barbara, Santa Clara, Santa Cruz and Ventura counties. In recent years refined asphalt, only, has been used commercially because a better grade can be produced for less money than the deposits of natural asphalt afford. In round numbers the refined product sold in 1912 amounted to 250,000 tons valued at $2,500,000, or $10 per ton. This is an increase of 70,000 tons over the corresponding production during 1911, although the price per ton decreased about $2. Over forty oil refineries are in operation in Cali- fornia situated in the following counties: Alameda, Contra Costa, Fresno, Kern, Los Angeles, San Diego, Santa Barbara, San Luis Obispo, San Francisco and Ventura. Asphalt is used principally in street paving ; also for roofing, insulat- ing, preservative of piling, etc. Production figures for asphalt are not added to the total of the State's mineral output because it is included in the value of the crude petroleum from which it is manufactured and the addition of the value of this by-product would give an erroneous result, too high by the above amount, i. e., $2,500,000 for the year 1912. Bituminous Rock. Reference: State Mineralogist Reports XII, XIII. Production of bituminous rock in California amounted to 44,073 tons valued at $87,467 for the year 1912, output being reported from San Luis Obispo, Santa Barbara and Santa Cruz counties. This is a considerable decrease from the 1911 figures when 75,125 tons were pro- duced worth $117,279. Solano County, which was the largest producer in 1911 reported no output of bituminous rock during 1912, the product which had deteri- orated somewhat in quality being used merely as crushed rock, and classified as such. Santa Barbara County is a new producer of this material. J STATE MINING BUREAU STATISTICS. Distribution by county, for 1912, is as follows: 23 County Amount Value San Luis Obispo 807 tons 11,120 tons 32,146 tons $1,472 00 Santa Barbara 5,556 00 Santa Cruz ^ 80,439 00 Totals 44,073 tons $87,467 00 Brick. Reference: Bulletin 38. The total brick production in California during the year 1912 amounted to 337,233 M, valued at $2,940,290, as compared with an output of 327,474 M Worth $2,638,121 in 1911, or an increase in amount of 9,759 M, and in value of $302,169. Twenty-five counties contributed to the above total and a gpeat variety of brick was produced, including common, fire, pressed, glazed, sand lime, and others. An attempt has been made to segregate the figures for the different kinds of brick, as will be noted in the following county tabulation. In many cases reports from operators of brick kilns make no classification. Such figures are necessarily listed as "miscellaneous. " Therefore it will be understood that the totals under the different head- ings are low in each classification. According to Bulletin No. 38, issued by the California State Mining Bureau, the following analyses show the average and the maximum and minimum of the ingredients commonly occurring in brick clays. A clay in which the percentage of any one or more of the ingredients mentioned is much above the maximum given or below the minimum will prove an inferior, if not worthless, clay for even common brick. Chemical Analyses of Common- Brick Clays. Silica (SiOo), combined- Silica sand Alumina (AI2O3) Water ( HjO ) , combined Water moisture Iron oxide (FezOg) Lime (CaO) Magnesia (MgO) Alkalies (K,0, Na^O)... Minimum 15.0% 55.0% 14.0% 4.0% 2.0% 4.0% 1.5% 1.5% 3.5% 12.0% 20.0% 11.0% 3.0% 0.0% 2.5% 0.5% 0.3% 2.0% Maximum 30.0% 60.0% 25.0% 9.0% 6.0% 8.0% 7.0% 7.0% 7.0% The detailed figures of brick production for 1912, by counties, are as follows : 24 MINERAL INDUSTRY OF CALIFORNIA. m a *• fl rS' STATE MINING Bl ■I'ATISTICS. 25 Cement. Reference : State Mineralogist Reports VIII, IX. XII. Bulletin 38. During 1912 California's output of cement was 6,198,634 barrels ilued at $6,074,661, as compared with 6,371,369 barrels produced in 111 having a value of $9,085,625. The cement industry is so cen- tralized that it is impossible to apportion the production to the counties in which the plants are located without making private business public. Cement was first commercially produced in the State in 1891. While the total figures are not of the same magnitude as those for gold and ■troleum the growth of the industry has been more than rapid, and a 'iiiparison of the annual figures representing the output since the inception of the industry is of interest. Annual production of cement in California is as follows : Year Amount Value •1 5,000 bbls. 5,000 bbls. $15,000 00 15,000 00 '3 '4 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 Totals 8,000 bbls. 21,600 00 16,383 bbls. 32,556 00 9,500 bbls. 28,250 00 18,000 bbls. 66,000 00 50,000 bbls. 150,000 00 60,000 bbls. 180,000 00 52,000 bbls. 121,000 00 71,800 bbls. 159,842 00 171,000 bbls. 423,600 00 640,868 bbls. 968,727 00 969,538 bbls. 1,539,807 00 1,265,553 bbls. 1,791,916 00 1,286,000 bbls. 1,941,250 00 1,613,563 bbls. 2,585,577 00 1,629,615 bbls. , 2,359,692 00 3,779,205 bbls. ' 4,969,437 OO 5,453,193 bbls. ' 7,485,715 00 6,371,369 bbls. 9,085,625 00 6,198,634 bbls. | 6,074,661 00 29.674,221 bbls. | $40,015,255 00 Chrome. Reference: State Mineralogist Reports IV, XII. Bulletin 38. In 1912 chrome production to the amount of 1,270 tons, having a spot value of $11,260, was reported from Shasta, Siskiyou and Fresno counties. The 1911 output was 935 tons valued at $14,197, showing a gain in amount for 1912 of 335 tons, and a loss in value of $2,937. The decrease in price was due to the production of an inferior grade of ore as compared with that of the previous year. Chrome, or more correctly, chromic iron ore, is used principally as the refractory ingredient in reverberatory and other furnace linings. The quantity of this ore in California, which is the sole source of domestic supply, far exceeds the demand, large deposits being known in Sonoma, Tehama, Tuolumne and other counties, in addition to those mentioned above. 26 MINERAL INDUSTRY OF CALIFORNIA. During 1912 the reported production of chrome in California was as follows : County Amount • Value Fresno 50 tons 1,000 tons 220 tons $950 00 8,000 00 2,310 00 Shasta Siskiyou Totals 1.270 tons $11,260 00 Lime. Reference: Bulletin 38. Lime production in the State during the year 1912 amounted to 522,118 barrels having a spot value of $464,440, as compared with the output in 1911 of 429,587 barrels valued at $390,988. Reports of pro- duction Avere received by the State Mining Bureau from several lime | kilns which had been idle for the previous year, or for a longer period in some cases, showing an increased activity in the local consumption, Lime production in 1912, by counties, is given in the following tabu- lated form : County Amount Value Amador 800 bbls. 14,870 bbls. 14,023 bbls. 162,831 bbls. 4,961 bbls. 17,500 bbls. 13,508 bbls. 169,646 bbls. 6,529 bbls. 117,450 bbls. $1,040 00 12 640 00 Contra Costa _ _ E( Dorado 11,218 00 Kern _ 124,894 00 Mono _ _ _ 3 721 00 Santa Barbara 16,434 00 Santa Clara ^_ _ __ 10,154 00 Santa Cruz _ > _ _ 159 505 00 Shasta _ 3,584 00 Tuolumne 121,250 00 Totals 522,118 bbls. $464,440 00 Magnesite. Reference: State Mineralogist Eeports XII, XIII. Bulletin 38. There is no crude magnesite handled on the market. It is all calcined and ground before using. However, in the statistical reports, figures for crude ore at the property are used in all cases. To arrive at this it has been found that calcined magnesite has an average value of $25 per ton. Two and one half to two and one fourth tons of the crude ore make one ton of the calcined product ; therefore, the arbitrary value of $10 per ton is used. During the year 1912 the output of crude magnesite in California amounted to 10,512 tons having a value, according to the above assump- tion, of $105,120. Besides the counties noted below, which reported a production of this material, depasits are located in Alameda, Mendocino, Napa, San Benito, Stanislaus, and others. STATE MINING BUREAU STATISTICS. Production for 1912 by counties is as follows : County '^sno icer orside — nta Clara - fioma Tulare Totals .. 2,000 tons 50 tons 878 tons 600 tons 300 tons 6,684 tons 10,512 tons 27 $20,000 00 500 00 8,780 00 6,000 00 3,000 00 66,840 00 $105,120 00 Marble. Bcfcrencc: State Mineralogist Report XII. Bulletin 38. ^larble production was reported from but two counties during the ,\ car 1912 although large deposits of good quality stone exist extensively throughout the State, and California marble should, in time, take the \ place of the large amount of eastern and foreign stone which is annually f imported for building and ornamental purposes. • The 1912 output amounted to 27,820 cubic feet having a spot value of $74,120, as compared with 20,201 cubic feet worth $54,103 produced in 1911. Production by counties follows: County Value Tulare — _ Tuolumne Totals lOO cu. ft, I 27,720 cu. ft. ' $200 00 73,920 00 27,820 cu. ft. $74,120 00 Onyx and Travertine. Reference: State Mineralogist Report XII. Bulletin 38. Onyx and travertine marble were produced in California to the value of $91,400 between the years 1887 and 1896. During the past sixteen years there has been no production of this kind of building stone in the State, although many partially exploited deposits exist in a score of counties. Practically all the onyx and travertine now used on the coast is imported from Mexico. Sandstone. Reference: State Mineralogist Report XII. Bulletin 38. Sandstone deposits, developed to a greater or less extent, are to be found in twenty -two counties of the State. But five of these counties reported a production during 1912 and the total output of 66,487 cubic feet with a spot value of $22,574 is a large decrease from the annual amount marketed in previous years. The quality of the California sandstone is undoubtedly good and in most cases is dark in color. The decreased production is directly attributable to two facts: (1) the 28 MINERAL INDUSTRY OF CALIFORNIA. growing tendency toward a white or light colored stone in public build- ings, and (2), the increased use of concrete in buildings of all kinds. County production of sandstone for 1912 is shown in the following table ; County Amount j 1 Amador _ 6,000 cu. ft. I $3,000 00 • Colusa 51,137 cu. ft. I 15,804 00 Santa Barbara 4,500 cu. ft. ^ 1,670 00 Siskiyou , 250cu.ft. 250 00 Ventura I 4,600 cu. ft. I 1,850 00 Totals I 66,487 cu. ft. I $22,574 00 Serpentine. Reference: Bulletin 38. Serpentine has been quarried both as a building and as an ornamental ] stone in various parts of California during the past twenty years. In most cases, however, it lacks sufficient brightness of color to be desirable for ornamental purposes, and has too many cracks and impurities to! make a first-class building stone. The value of all the serpentine pro-; duced in the State amounts to only $33,259. Production was last reported in 1907. Slate. I Reference: Bulletin 38. j Slate production in California had its beginning in 1889 and has beehj continuous, in greater or less amount, up to 1911, since when no pro-1 duction has been reported. The output has been rapidly declining ihi recent years. Many large deposits of slate are known in the State, but; its greatest use in the past has been as a fireproof roofing, and the] various brands of "ready roofing" which have been placed on the market in recent years have hurt the industry seriously. Stone Industry. Reference: State Mineralogist Report XII. Bulletin 38. This classification has been arbitrarily made to include the following closely allied branches of the mineral industry : Granite, paving blocks, macadam, concrete, rubble and crushed rock of all kinds, sand and gravel. In previous reports these materials have been handled separately, but it has been found that from the standpoint of the producer they overln n to such an extent that it is much more satisfactory to group them as h been done in this report. In so far as it has been possible to do so, granite and crushed rock pro- duction has been subdivided into the various uses to which the product was put. It will be noted, however, that in both instances a very large percentage of the output has been tabulated under the heading *' Un- classified. '^ This is necessary because of the fact that many of the STATE MINING BUREAU STATISTICS. 29 producers have no way of telling to what specific use their rock was put after they have quarried and sold the same. Thirty-seven counties reported a production of this class of material .luring 1912 against 34 counties in 1911. The value of the 1912 output shows a total of $5,473,928, or a 30 per cent increase over the 1911 pro- duction of $4,176,918. Not only did the total value make such a great advance, but every item shows a healthy increase, and with very few .exceptions the county totals mark a corresponding progress. !iOS Angeles County led all others in 1911 in this branch of the mlustry with a product valued at $536,876. For 1912 three counties • xcoeded this figure, Los Angeles again leading with a total of $955,668; n Bernardino second with an output valued at $580,824, and Riverside I ounty third with a production of $567,309. The total is made up of the following — all values being for the crude material at the property : Value Building stone (granite) $108,025 00 Monumental stone (granite) 94,563 00 Curbing 76,477 00 Granite (unclassified) 83,910 OO Paving blocks 578,355 00 Macadam 848,235 00 Rubble - — 218,843 00 Concrete 578,267 00 Crushed rock (unclassified) 2,045,665 00 Sand and gravel : 841,588 OO Total ; $5,473,928 00 The various sub-totals showing comparative values for 1911 and 1912, with the amount of increase attained during the latter year, is as foUows : Value Total granite production 1911 __| $355,742 00 Total granite production 1912 362,975 00 Increase for 1912 j $7,233 00 Paving block production 1911. Paving block production 1912. Increase for 1912. $210,819 00 578,355 00 $367,536 00 Crushed rock production 1911 i $3,610,357 00 Crushed rock production 1912 i 4,532,598 00 i Increase for 1912 , $922,241 00 Total stone industry. 1911 production I $4,176,918 00 Total stone industry, 1912 production _ ; 5,473,928 00 Total increase for 1912 _ __ $1,297,010 00 30 MINERAL INDUSTRY OF CALIFORNIA. OOIOO COKDO OO CDO CO )0000l:^0»0 0< ^ a? 03 o b • i -^Ptafi* O) ^ « a t!^'-'5 o g S a 4J O ^Ba^J^^T-^ ea 03 03 o f«^ W M S J^; As Ph « CC CC OQ CO STATE MINING BUREAU STATISTICS. 31 Paving block production, by counties, for 1912, is as follows: County Value Vlameda - - ----- 12 M 287 M 1,508 M 2,565 M 865 M 5,781 M $726 00 Placer 9,010 00 Ixiverside 88,142 00 ^;in Bernardino 161,150 00 - in Diego - _ _ 54,650 00 iinoma 264,677 00 Totals - - 11,018 M $578,355 00 Sand and gravel production, by counties, for 1912, is as follows : County Amount Value Alameda _ _ _ _ _ _ 299,043 tons 106,181 tons 1,000 tons 171,530 tons 300 tons 167,806 tons 543,675 tons 20,300 tons 20,000 tons 395,979 tons 1,200 tons 500 tons 112,218 tons 194,640 tons 100 tons 22,925 tons 10,400 tons 138,977 tons 10,359 tons 25,820 tons 20,390 tons 26,900 tons 3,971 tons 44,932 tons 4,872 tons 31,222 tons 215,414 tons 2,500 tons, 64,531 tons $106 410 00 Butte 11,853 00 ' Colusa _ - 300 00 Contra Costa El Dorado 86,812 00 75 00 \ Fresno 69,886 00 ( Glenn _ _ . _ _ _ 32,950 00 Humboldt Imperial _ 15,400 CO 10,000 00 Los Angeles _ _ 124 817 00 Marin 600 00 Mendocino Monterey Napa 300 00 54,969 00 132,046 00 Nevada _ 50 00 Orange . _ _ _ _ 20 155 00 Riverside ^acramento _- _ 3,410 00 12,662 00 ^an Bernardino 5 180 00 >an Diego* San Francisco San Mateo ^anta Barbara 13,337 00 15,040 00 8,070 00 1,888 00 ^anta Clara >iskiyou 20,466 00 609 00 Sonomat __ 13,205 00 Stanislaus _ _ _ _ 63,572 00 Trinity 2,000 00 Tuba ^ 15,526 00 Totals 2,657,685 tons. $841 588 00 •Including 400 tons moulding sand worth $1.50 per ton. tincluding 342 tons of chicken grit worth $6 per ton. 32 MINERAL INDUSTRY OF CALIFORNIA. tH«0 »f30 S§J 1 ls CO I i-H T}< O "^CM t^ ■<»< CD 00 C4 tH COCOCOCO C>a 1-H (MtH CO QOtT C0O5i T-ro4odr<^coi '«J manufacture of tapestries, etc., is worth as high as $200 per ton. Barytes. Reference: State Mineralogist Report XII. Bulletin 38. Baryte is used principally in the paint industry, in the manufacture of paper and rope, in tanning leather and the refining of sugar. Tin demand, although comparatively small, is increasing. Crude baryt'^ command a price of about $5 per ton, at the propert3\ Deposits of this mineral are known in Butte, Mariposa, San Bernar dino and Shasta counties. Total production in the State for the year 1912 amounted to 564 tons valued at $2,812, as compared with the 1911 output of 309 tons worth $2,207. Before marketing barytes the product is usually sorted and ground and in this condition it brings a spot price of from $10 to $14 per ton Bauxite. Reference: Bulletin 38. Bauxite, the ore from which metallic aluminum is derived, has been discovered in large quantity in southern California, and small deposits are also known in other parts of the State. No ore has been producet and sold, to date, although the outlook for such a condition is favorabl< and the increased uses which are continually being found for this met.i practically guarantee another addition to California's long list of profit able mineral products. J STATE MINING BUREAU STATISTICS. 35 Reference: State Mineralogist Reports IV, IX, XII. Bulletin 38. t one time or another in the history of the State, pottery clay has n quarried in thirty-three of its counties. In this report "pottery clay" refers to all clays used in the manufacture of red and brown ( arthenware, flower pots, tiling of all descriptions, architectural terra cotta, sewer pipe, etc., and the figures for amount and value are relative to the crude material at the pit, without reference to whether the clay was sold in the crude form, or whether it was immediately used in the manufacture of any of the above finished products by the producer. The production as reported by operators for the year 1912 amounted I to 199,605 tons valued at $215,683 as compared with an output of 224,576 tons worth $252,759 in 1911, a slight decrease both in amount and value. A tabulation of the direct returns from producers, by counties, for the j^ear 1912 is as follows : County Araador Calaveras Humboldt Los Angeles Monterey Orange Placer Riverside San Bernardino San Diego Santa Barbara Ventura 35,100 tons 4,281 tons 396 tons 11,929 tons 4,000 tons 2,100 tons 56,000 tons 72,046 tons 350 tons 403 tons 12,000 tons 1,000 tons Totals 199,605 tons $36,856 00 4,431 00 400 00 12,028 00 6,000 00 3,400 00 41,300 00 93,418 00 350 00 500 00 16,000 00 1,000 00 $215,683 00 Feldspar. The feldspars occur as constituents of nearly all rocks. The feldspar of commerce, however, is all obtained from pegmatites, where the crj^stals are large enough to admit of more or less sorting. The better grades of feldspar are used in pottery manufacture and in the making of various enamel w^ares. Where a high per cent of impurities is present the material is ground coarsely and used in the manufacture of "ready roofing," "chicken grit," etc. Small quantities are used in glass making, and as an abrasive in scouring soap. Attempts have been made to prove the value of the potash feldspars as fertilizer. Feldspar was first commercially produced in California in 1910. During the year 1912, 1,382 tons were quarried and sold, the crude material at the property having a value of $6,180, as compared with the output of 1911 amounting to 740 tons worth $4,560. I 36 MINERAL INDUSTRY OF CALIFORNIA. Fuller's Earth. Beference: Bulletin 38. Fuller's earth, so named from its earliest use in fulling wool, is a rather rare, soft, friable rock whose value depends altogether on its texture and its filtering and absorbent properties. It has no definite composition, mineralogically, its physical properties rather than a chem- ical analysis determining its commercial value. Fuller 's earth was first produced in the United States in the early nineties, and has been mined and marketed in a small way in California annually since 1899. Dur- ing 1912 the output amounted to 876 tons having a spot value of $6,500 as compared with the production of the previous year of 466 tons worth $5,294, or an increase in amount of 410 tons and in value of $1,206. Gems. Reference: Bulletins 37, 64. Gem production in California has shown a steady decline for the past two or three years. Seven counties reported a production value at $23,050 for the year 1912 as against eight counties which produced gems worth $51,824 in 1911. These values are for rough, uncut stones at the property, and are, of course, only a small per cent of the selling prices received for the stones when they are finished, cut and mounted. The figures given in the following table are the result of consultation with producers and dealers of this class of material throughout the State. Gem deposits are located in many portions of the State, and the pos- sible yield is very large. Unlike the '^ precious" stones, however, there is no definite value obtainable for these native gems; the demand is largely from the tourist trade and is exceedingly irregular, and there is a constant and growing competition with ''paste" gems of every kind as well as with a growing list of artificially produced "stones." The decline in production is not due to the above causes alone. There was a large overproduction of rough stones in 1910 and in several instances it is true that a stock of gems from that year is still on hand and uncut. On account of this overproduction, and the quietness of the business generally, one of the large firms which has been interested in gem mining in the State for years, withdrew from the field altogether. Their output, alone, for the year 1.910 was greater than the entire pro- duction during 1912. Notwithstanding the stagnant condition of this branch of the mineral industry, as a whole, considerable development work was carried on last year, Fresno and Riverside counties increased their production and San Bernardino County, which reported no output whatever in 1911, produced $450 worth of rough gems, consisting largely of turquoise and turquoise matrix. San Diego, Tulare and Siskiyou — the counties that contain the bulk of the gem deposits — fell off over 50 per cent, as com- STATE MINING BUREAU STATISTICS. 37 pared with the previous year. New discoveries continue to be made from time to time in Inyo County, but little development has taken place, to date. The following summary shows the total value of crude gem stones produced in California during .1912 : County Value Fresno i $700 00 Los Angeles i 3,000 00 Riverside ___ i 800 00 San Bernardino ' 450 00 San Diego i 12,500 00 Siskiyou _ \ 250 00 Tulare | 5,350 00 Total — _| $23,050 00 Principally californite and rhodonite. Principally beach stones, agate, jasper. Principally tourmaline. Principally turquoise and matrix. Principally beryl, tourmaline, hya- cinth. Principally rhodonite. Principally satelite, bloodstone, etc. Graphite. Reference: State Mineralogist Report XIII. No natural graphite was produced in California during 1912 although there are deposits of the mineral located in several counties in the State, and the owners of one property reported development work having been done in the course of the year with a possible output for 1913. Graphite deposits have been discovered, and exploited to some extent, in the following counties: Fresno, Los Angeles, Mendocino, San Bernardino, Siskiyou, Sonoma, and Tuolumne. The demand for graphite shows a steady increase. Imports, largely from Mexico and Ceylon, amount to about $2,000,000 annually. On account of its infusibility and resistance to action of molten metals, graphite is very valuable in the manufacture of crucibles; it is also largely used in the manufacture of electrical appliances, as a steam packing, as a lubricant, in manufacture of paint and lead pencils, and in many other ways. Prices obtainable vary widely, depending upon the grade of the product, and upon its being amorphous or crystalline. The lowest grades bring about $10 per ton, and from this figure prices range up as high as $200 for the pure crystalline variety. A few years ago only crystalline graphite of superior quality could be used in many of the arts and manufactures. Now inferior mineral may be concentrated by flotation, but the discovery that a fair grade of graphite could be manufactured from a good grade of coal has seriously hurt the mining of graphite, and lowered the price so that inferior mineral scarcely finds a sale, or can be concentrated at a profit. 38 MINERAL INDUSTRY OF CALIFORNIA. Gypsum. Reference: Bulletin 38. Gypsum is used in the manufacture of plaster of paris, in the paper and glass industries, as a wall plaster, and to some extent as a fertilizer. Gypsum occurs most commonly as the well known "rock gypsum," although it is often foimd in the highly crystallized form known as selenite as well as in the fibrous state when it is known as satin spar. The material, as it is quarried in California, commonly carries a con- siderable per cent of impurities in the form of clay, limestone, etc. It is ordinarily ground and calcined before being marketed. Gj^sum production for the year 1912 amounted to 37,529 tons, the crude material having a spot value of $117,388, as compared with the 1911 output of 31,457 tons worth $101,475, showing that the demand for the year had an upward trend. Four counties reported production, as will be seen by the following table, although deposits of this mineral are located in Butte, Colusa, Fresno, Los Angeles, Orange, Riverside, San Benito, San Luis Obispo, Santa Barbara, Tulare, and Ventura counties, as well. Detailed production figures follow: County Amount \ ralue Kern __, 8,479 tons | 50 tons i 8,000 tons ' 21,000 tons ! $18,188 00 200 00 Kings Monterey __ 32,000 00 San Bernardino _,_ 67,000 00 Totals _„ 37,529 tons $117,388 00 Infusorial Earth. Reference: State Mineralogist Reports II, XII, XIII. Bulletin 38. Infusorial earth, also known as diatomaceous earth, tripoli and trip- olite, occurs in California very extensively. Deposits of importance are located in Los Angeles, Monterey, Orange, San Benito, San Bernardino, San Luis Obispo, Santa Barbara, Shasta, and Tehama counties. The production for 1912 amounted to 4,129 tons valued at $17,074, as compared with 2,194 tons valued at $19,670 quarried and sold during the previous year. Only two counties contributed to the total : County Amount Value Monterey Santa Barbara 3,000 tons 1,129 tons $4,000 00 13,074 00 •~" ■■ """ Totals 4,129 tons $17,074 00 Infusorial earth is not soluble in acids, is very light, and extremely porous. It is used as an absorbent, is a first class non-conductor of STATE MINING BUREAU STATISTICS. 39 heat, is utilized in the manufacture of refractory brick, as a polishing powder, in scouring soaps, etc. Limestone. Reference: State Mineralogist Reports IV, XII. Bulletin 38. Eleven counties reported a production of limastone in 1912 amounting to 613,375 tons worth $570,248 at the quarry. This is a decided increase over the 1911 production when thirteen counties contributed to a total output of 516,398 tons valued at $452,790. Limestone is used as a flux by smelters ; in the refining of sugar ; in manufacture of carbonic acid; as a fertilizer for ''sour" soils; and in the manufacture of glass, paper and mineral wool, and in other ways. These figures represent, as far as it has been possible to make them do so, limestone used as such. If operators report limestone production which has been crushed and used as macadam, it has been classified as macadam in this report and not as limestone. When the stone has been quarried for use in the manufacture of cement such tonnages have been excluded altogether here as it would be a duplication of values to add both the cement and limestone figures in the general total. Many of the reports received by the State Mining Bureau, however, make no definite mention of the use to which the material w^as put, and unless otherwise known, such data comprises the following tabulation which apportions the total limestone production in California during the year 1912 among the various producing counties : County Value Contra Costa _ _ I 25,879 tons $45,29100 Monterey _._ 6,000 tons j 8,000 00 Placer . ! 222,595 tons l 200,000 00 Riverside _ _._ __ 90,831 tons 63,582 00 San Bernardino , 80,186 tons 97,867 00 San Mateo i 102,300 tons \ 66,495 00 Santa Barbara _ 5,327 tons i 11,666 00 Santa Clara _ I 3,374 tons i 4,120 00 Santa Cruz „_ : 7,307 tons \ 7,553 00 Shasta 58,022 tons 45,575 00 Tuolumne __ : 11,554 tons I 20,099 00 Totals _ : 613.375 tons \ $57a248 00 Manganese. Reference: State Mineralogist Reports XII, XIII. Bulletin 38. Manganese ores are found widely distributed throughout the State and a production, usually small, has been annually reported for the past quarter of a century. During 1912 the output amounted to only 22 tons valued at $400, the material being marketed from Alameda and Plumas counties. Manganese is used most extensively in the steel industry; minor uses are in the paint, glass and pottery industries, in chem- istry, etc. 40 MINERAL INDUSTRY OF CALIFORNIA. Mica. Reference: State Mineralogist Report II. Bulletin 38. According to the records of the State Mining Bureau the total pro- { duction of mica in California has been but 150 tons valued at $9,300. j This output was recorded during the years 1902, 1903, 1904. Most of ; the mica found in the State to date has been of too poor a grade to find , a ready market. A discovery of this material in Los Angeles County, has been recently reported, although but little development has been done to ascertain its real value. Lithia mica was produced in San Diego County, 1900-1905, but none has been sold since. This mineral is used in the manufacture of artificial mineral water, in making effervescing lithia tablets, and to some extent in manufacturing ''fireworks." Mineral Paint. Reference: State Mineralogist Reports XII, XIII. Bulletin 38. Mineral paint to the amount of 300 tons having a spot value of $1,800 was produced in California during 1912. This figure applies to the* crude ore. This is an increase over the 1911 figures of 114 tons in amount and $616 in value. Mineral paint deposits have been dis- covered in the following counties : Butte, Calaveras, Los Angeles, Napa, Nevada, Placer, Riverside, Siskiyou, Sonoma, Stanislaus, Trinity and Yuba. There has been a small annual output of this material in thei State since 1890, at which date the first production was reported. Mineral Water. Reference: State Mineralogist Reports VI, XII, XIII. Eighteen counties reported a commercial production of mineral water during 1912 to the amount of 2,497,794 gallons valued at $529,384. These figures refer to mineral water actually bottled and sold. Hun-, dreds of thousands of gallons are used at the springs for bathing and; other purposes of which no reliable data can be compiled, and millions! of gallons annually run to waste. Prices obtained for the different waters vary greatly because of che great difference in the analysis of the water from the several springs anrl the consequent demand for same. STATE MINING BUREAU STATISTICS. letailed production figures for 1912 are as follows 41 County Calaveras _ Oolusa _ Contra Costa — Lake Los Angeles Marin Monterey Napa Riverside San Benito San Diego San Luis Obispo Santa Barbara Santa Clara ___ ^Hnsta kiyou — ano ^uiioma Totals - Amount Value 7,528 gals. $3,764 00 165,330 gals. 39,061 00 200,000 gals. 10,000 00 202,000 gals. 114,500 00 76,495 gals. '6,333 00 260.000 gals. 31,000 00 20,000 gals. 7,000 00 186,750 gals. 81,997 00 44,256 gals. 4,250 OO 2,600 gals. 1,240 00 52,060 gals. 17,218 00 2,500 gals. 625 00 105,000 gals. 11,550 00 152,500 gals. 10,250 OO 23,225 gals. 5,646 00 700,000 gals. 120,000 00 285,050 gals. 44,000 00 62,500 gals. 20,950 00 2,497,794 gals. $529,384 00 Pumice. Reference: State Mineralogist Report XII {see Tufa). Bul- letin 38. One hundred tons of pumice were produced in California during 1912 having a spot value of $25 per ton. Deposits of this material have been long known in various parts of the State but only once before has an actual commercial production of pumice stone been reported to the State Mining Bureau. Its principal use is for abrasive purposes. Pyrlte. Reference: Bulletin 38. Pyrite production in California during 1912 amounted to 69,872 i:ons, the value of the crude ore at the property being $203,470, or an Average of $2.91 per ton. This shows an increase of 15,647 tons, and ^20,516 in value, over the 1911 output of 54,225 tons valued at $182,954, ilthough the average value per ton decreased 46 cents. The pyrite here •eferred to was that actually used in the manufacture of sulphuric icid, many thousand tons being annually treated for other than their lulphur content. The output by counties for the two years is as 'oUows : County 1911 1912 Amount Value Amount Value i-lameda 6,340 tons 47,885 tons $31,352 00 151,602 00 7,267 tons 62,605 tons $29,068 00 174,402 00 »hasta __ Totals __ 54,225 tons .«lR5.9.tu no 69,872 tons $203,470 OO 42 :\IIXEKAL INDUSTRY OF CALIFORNIA. Sand Glass. Beference: State Mineralogist Keport IX {see Glass) Bulletin 38 1 Most of the glass sand used in the State is imported, although th( domestic production is increasing owing to the development of deposits of better grades of material than formerly. During 1912 the output amounted to 13,075 tons valued at $15,404, at the property, as coraparoc with the 1911 production of 8,620 tons worth $8,672. Soapstone. Reference: State Mineralogist Report XII. Bulletin 38. Small amounts of soapstone have been marketed in California inter mittently since 1893. The industry has never been developed to anj great extent as yet, although the possible production is quite large During 1912 the output amounted to 1,750 tons with a spot value oj $7,350 for the crude material. It is used in making paper, soap, lubri cants, tiling, etc., and when ground through a 200-mesh screen is wortl about $15 per ton. Sulphur. Reference: State Mineralogist Reports IV, XIII. Bulletin 38. Sulphur is deposited from solution at certain mineral springs in lb northern portion of the State. Other areas contain rocks from whicl it is possible to distill pure sulphur. Active production of this minera is improbable, however, at the present time. STATE MINING BUREAU STATISTICS. 43 CHAPTER SIX. SALINES. Borax. Reference: State Mineralogist Reports III, X, XII, XIII. Bulle- tin 24. Deposits of borax are known in Inyo, Kern, Lake, Los Angeles, Imperial, San Bernardino, Solano, Tehama, and Ventura counties. In ilie desert portions of the State its occurrence is more or less common in the beds of ancient lakes. In other places it is mined as an ore, chiefly colemanite, which occurs in vein-like masses. The output in California, which is the sole domestic source of borax, in 1912 amounted to 42,135 tons valued at $1,122,713 as compared with the 1911 output of 50,945 tons worth $1,456,672. The above tonnage refers to the crude ore and the value is determined by the available boracic acid present, which is worth one dollar per unit. N itrates. Reference: Bulletin 24. Sodium nitrate deposits of unknown extent have long been known in that portion of San Bernardino and Inyo counties commonly called the Death Valley region. There has never been a commercial production of this salt in California. Potash. A great deal of interest has been taken recently in occurrence of potash in the desert regions of the State. The only literature on the ■subject is in the form of a few brief reports by the U. S^ Geological >urve3'. There has been no commercial production of this material in California, to date. Salt. Reference : State Mineralogist Reports II, XII, XIII. Bulletin 24. The California salt output is derived from the following sources: The waters of the Pacific Ocean by evaporation, this branch of the industry being carried on principally on the shores of San Francisco Bay, as well as at Long Beach and San Diego ; from the old lake beds from the desert portions of the State, where many thousand acres of 'saline deposits exist; and from deposits of rock salt which are found [extensively in San Bernardino County. I During 1912 seven counties reported a production of 185,721 tons I 44 MINERAL INDUSTRY OF CALIFORNIA. having a value of $383,370 in the stack, an average of a little over t^v dollars per ton. As compared with the 1911 figures, when 173,332 torn were produced worth $324,255 it will be noted that there is considerabk increase both in amount and value of this product. Detailed figures, by counties, are as follows: County Amount Value Alameda 126,211 tons ■ 10.360 tons 50 tone 3,600 tons 12,450 tons 33.000 tons 50 tons $212,150 (K 46,370 a 800 0< 12,600 0( 31,350 0( 1 Los Angeles Modoc - - - San Bernardino — San Diego - - - — San Mateo Solano 80,000 0(v 100 a Totals — 185,721 tons $383,370 Soda. I Reference: State Mineralogist Reports XII, XIII. Bulletin 24. \ Deposits of soda are located in various parts of southern California more especially in Inyo, San Bernardino and San Luis Obispo counties The 1912 production amounted to 7,200 tons, valued at $37,094, as com- pared with an output of 9,023 tons valued at $52,887 in 1911. STATE MINING BUREAU STATISTICS. 45 chaptp:r seven. MINERAL PRODUCTION BY COUNTIES. Under the following County headings will be given, first, a list of the nineral resources of the county, reports upon which have been received )y the State Mining Bureau, followed by a tabulation showing quantity ind value of the mineral output for 1912 : Xlameda. Mineral Resources. — Asphalt, chrome, brick, clay, coal, gypsum, nagnesite, manganese, petroleum, pyrite, salt, soapstone, stone industry. Commercial production for 1912 w^as as follows : Mineral Quantity Value ?rick .._-__ ilanganese ?yrite 5alt Stone industry 12,800 M 20 tons 7,267 tons 126,211 tons Total $133,100 00 360 00 29,068 00 212,150 00 420,283 00 $794,961 00 VIpine. Reference : State Mineralogist Report XII. MiNERxVL Resources. — Gold and silver. Gold and silver output included in Stanislaus total. Kmador. MiNERxVL Resources. — Asbestos, brick, chrome, clay, coal, copper, :old, lime, sandstone, silver, soapstone. Commercial production for 1912 was as follows: Mineral Quantity Value Jrick Jlay Jopper fold ilme andstone liver capstone 2,500 M 35,100 tons 175,608 lbs. 800 bbls. 6,000 cu. ft. 70O tons $25,000 00 36,856 00 28,975 00 2,796,194 00 1,040 00 3,000 00 32,037 00 2,100 00 Total $2,925,202 00 ►See page 28. 46 MINERAL INDUSTRY OF CALIFORNIA. Butte. Mineral Resources. — Gems, gold, limestone, marble, mineral water, platinum, stone industry, silver. Commercial production for 1912 was as follows: Mineral Value Gold _ $2,346,229 Silver _ — 5,567 (1 •Stone industry 51,879 (1 Total $2,403,675 Calaveras. Reference: State Mineralogist Report XII. ^Iineral Resources. — Asbestos, chrome, clay, copper, gold, limestoni marble, mineral water, platinum, pyrite, quartz crystals, stone industry silver. ' Commercial production for 1912 was as follows: Mineral Quantity Value Clay 4,281 tons 6,125,415 lbs. $4,431 0' CoDDer 1.010,693 (" Gold %2,145 0. Mineral water 7,528 gals. 3,764 Silver 70,748 0' Total j $2,051,781 0* Colusa. Reference : State Mineralogist Report XI. Mineral Resources. — Copper, mineral water, petroleum, quicksilver silver, sandstone, stone industry, gold. Commercial production for 1912 was as follows : Mineral water _- Sandstone ♦Stone industry Total Quantity J 165,330 gals. 51.137 cu. ft. Valup " $39,061 DC 15,804 GO 15,300 00 $70,165 CO Contra Costa. Mineral Resources. — Asphalt, cement, brick, clay, conl. liDK'stone, lime, mineral water, stone industry. *See page 28. STATE MINING BUREAU STATISTICS. Commercial production for 1912 was as follows : irick .inie iinestone linoral water .. --' one industry Quantity 32,621 M 14,870 bbls. 25,879 tons 200,000 gals. rotal 47 $283,718 00 12,&40 00 45,291 00 10,000 00 478,162 00 $829,811 00 )el Norte. AFixERAL Resources. — Chrome, gold, silver, stone industry, copper. I ommercial production for 1912 was as follows : old . ilver -! $3,940 00 -! 10 00 Total $3,950 00 I Dorado. Ecference: State Mineralogist Report XII. ^FiNERAL Resources. — Asbestos, cement, copper, gold, limestone, i-ksilver, glass sand, slate, silver, stone industry. I ommercial production for 1912 was as follows: iiiie Iver one industry- Quantity 14,023 bbls. $105,565 00 11,218 00 843 00 4,375 00 Total 1 1 $122,001 00 Mineral Resources. — Asphalt, brick, chrome, copper, gems, gold, lagnnesite, petroleum, quicksilver, stone industry, silver, natural gas. Commercial production for 1912 was as follows: Quantity Value rick 5,000 M hrome - _ _ _ Pft tnna ems old ___ agnesite 9 nOO tons latural gas '3troleum 19 510932 bbls uicksilver _ _ _ _ _ .^5Wl flneta Stone industry _ i Iver Total m. $40,000 00 950 00 700 00 6,094 00 20,000 00 21,380 00 8,487,255 00 14,125 00 307,158 00 23 00 $8,897,685 00 •See page 28. 48 MINERAL INDUSTRY OF CALIFORNIA. Glenn. Mineral Resources. — Chrome, manganese, sandstone, stone industry Commercial production for 1912 was as follows : Mineral Value *Stone industry $32,950 00 Total^_ __ _ $32,950 00 Humboldt. Mineral Resources. — Brick, clay, copper, gold, silver, mineral water natural gas, platinum, stone industry. Commercial production for 1912 was as follows Quantity Brick Clay Gold Natural gas Silver ♦Stone industry Total 772 M 396 tons $6,415 Cn 400 I' 31,271 i 150 1 150 a 229,730 0( $268,116 0[ Imperial. Mineral Resources. — Brick, gold, lead, marble, silver, stone industry Commercial production for 1912 was as follows : Mineral Quantity Value Brick — - - - - 3.250 M $20,000 al 10,000 0(| *Stone industry ____ > Total $30,000 0(1 Inyo. Mineral Resources. — Antimony, borax, cement, gold, copper, lead,, marble, mineral water, nitrate, soapstone, salt, soda, silver, stone indus-i try, zinc. Commercial production for 1912 was as follows : Mineral Quantity Value Copper _— » 48,584 lbs. $8,016 0( 369,758 54,312 0» 45,816 0< 5,'jr.o Oi (il8 0* Gold - — Lead _ — — 1,207,593 lbs. Silver Soapstone - — - 1,050 tons *Stone industry _. Total - $483,330 „_ « •See page 28. STATE MINING BUREAU STATISTICS. 49 Kern. .Mineral Resources. — Antimony, asbestos, asphalt, brick, cement, opper, fuller's earth, gypsum, gold, lime, limestone, magnesite, mineral :>;iint, natural gas, petroleum, potash, salt, soda, silver, stone industry, uiigsten, molybdenum. Commercial production for 1912 was as follows : Mineral Quantity Value tBrIck „ - 1,890 M _ __ _ $23,120 00 i3old 830,421 00 Gypsum - - _ _ _ 8,479 tons 19,664 lbs. 162,831 bbls. 18,188 00 Lead - 885 00 Lime 124,894 00 >fatural gas Petroleum _. Silver 325,484 00 51,448,067 bbls. 21,762,532 00 11,480 00 Total _ — $23,097,003 00 . Sand, glass Silver ♦Stone industry . Total 4,000 tons 8,000 tons 3,000 tons 6,000 tons 20,000 gals. 9,016 tons $6,000 Oi 7,647 0! 32,000 Oti 4,000 DO 8,000 0(1 • 7,000 0' 7,916 Gi 67 0(t 60,119 GO $132,749 00 Napa. Reference: State Mineralogist Report XI. Mineral Resources. — Cement, petroleum, mineral water, quicksilver. sandstone, stone industry. Commercial production for 1912 was as follows : Mineral Quantity Value Mineral water - 136,750 gals. 287 flasks $81,997 0- Quicksilver — *Stonp industrv 12,065 (•= 172,646 (" Total $266,708 0' Nevada. Reference: State Mineralogist Report X. Mineral Resources. — Copper, gold, pyrites, mineral paint, silver, stone industry. Commercial production for 1912 was as follows : Quantity Value Gold Lead Silver ♦Stone industry Total 1,785 lbs. $2,081,958 00 80 00 22,830 00 3.675 00 $2,108,543 00 *See page 28. t Including Los Angeles and San Luis Obispo counties. MINERAL INDUSTRY OF CALIFORNIA. 53 Drange. Uijii-i nee: State Mineralogist Report XI. Mineral Resources. — Brick, clay, coal, gold, petroleum, natural gas, Miulstone, silver, stone industry, tin. Commercial production for 1912 was as follows : Mineral Quantity Value irick >_ _ 1.300 M 2,100 tons $9,100 00 3,400 00 5,250 00 ^lav _._ satural gas '■'rroleum 6,704,421 bbls. 459 tons 4,478,553 00 \d, glass _ __ 688 00 cne industry 21,284 00 Total _ $4,518,275 00 lacer. Mineral Resources. — Asbestos, brick, clay, copper, gold, limestone, langanese, magnesite, quartz crystals, glass sand, silver, stone industry. i ommercial production for 1912 was as follows : Mineral 1 Quantity Value Srick _ 900M 56,000 tons 78,170 lbs. $21,250 00 > ')lay _ 41,300 00 Ipopper 12 898 00 T lold ___ _ __ 367,383 00 imestone 222,595 tons 50 tons 1,000 tons 200,000 00 lagnesite _ 500 00 and, glass _— : 2,000 00 ilver _. „. 4,791 00 ^tone industry _ - . 231,415 00 Total _ __ _.__ $881,537 00 lumas. ^IiNERAL Resources. — Copper, gold, lead, limestone, granite, man- .inese, silver, stone industry. Commercial production for 1912 was as follows Mineral Quantity Value opper _ ___ 6,963 lbs. $1,149 00 old 193,237 00 oad 5,856 lbs. 2 tons • 264 00 anganese 40 00 ilver _ 957 00 Stone industry 1,350 00 ' Total __ $196,997 00 •See page 28. 1 54 MINERAL INDUSTRY OP CALIFORNIA. Riverside. , Mineral Resources. — Asbestos, cement, brick, clay, coal, copper, gems, gold, graphite, iron, lead, gypsum, limestone, magnesite, marble, mineral paint, mineral water, salt, glass sand, tin, stone industry, silver. Commercial production for 1912 was as follows : manal Quantity Value Brick _ __ 2,500 M 72,046 tons 6.000 lbs. $20,000 00 93,418 00 990 00 800 00 20,202 00 42 00 63,582 00 8,780 00 4,250 00 3,000 00 254 00 567,309 00 Clay Copper _ Gems Gold Lead 929 fbs. 90,831 tons 878 tons 44,256 gals. 800 tons Limestone Magnesite Mineral water _ _ Sand, glass Silver ♦Stone industry Total $782,627 00' Sacramento. Mineral Resources. — Brick, clay, gold, natural gas, platinum, stoii< industry, silver. Commercial production for 1912 was as follows : Mineral Quantity Value Brick 26,073 M $161,535 00 1,712,587 00 96,000 00 3,544 00 197,733 00 Gold Natural gas > Silver _ *Stone industry Total _ $2,171,399 00 San Benito. Mineral Resources. — Antimony, bituminous rock, cement, coal, cop- per, gems, limestone, manganese, mineral water, pyrites, quicksilver, stone industry, petroleum. Commercial production for 1912 was as follows : Mineral Quantity Value Mineral water — — — .—__._..-.—. — - — — 26,000 gals. 9.743 flasks $1,240 00 409,596 00 83,232 OO Quicksilver *Stone industrv Total $494,068 00 'See page 28. MINERAL INDUSTRY OP CALIFORNIA. 55 an Bernardino. Reference: State Mineralogist Report XI. Mineral Resources. — Aluminum, barytes, borax, cement, brick, clay, 'opper, gems, gold, gypsum, iron, lead, limestone, marble, mineral water, ■lineral paint, nitrate, petroleum, potash, salt, soapstone, silver, soda, stone industry, tellurium, tungsten, vanadium, tufa, zinc. Commercial production for 1912 was as follows : lUneral Quantity lay pper ems old — ypsum «ad Ixnestone ineral paint .. lit liver stone industry Total 350 tons 1,937,185 lbs. 21,000 tons 94,852 lbs. 80,186 tons 200 tons 3,600 tons $350 00 319,636 00 450 00 293,900 00 67,000 00 4,268 00 97,867 00 1,200 00 12,600 00 49,962 00 580,824 00 $1,428,057 00 an Diego. Reference: State Mineralogist Report VI, XI. Mineral Resources. — Asphalt, brick, clay, copper, gems, gold, lithia liea, marble, mineral water, petroleum, potash, salt, silver, stone idustry. Commercial production for 1912 was as follows : Mineral Quantity Value tick 10,500 M 403 tons $80,000 00 ems - - _ _ _ 500 00 12,500 00 Oneral water flit _ - 52,060 gals. 12,450 tons 17,218 00 31,350 00 iStone industry _ « 164,115 00 '\ Total $305,683 00 an Francisco. Mineral Resources. — Clay, stone industry, asphalt. [ Commercial production for 1912 was as follows : Stone industry _ _ $151,147 00 Total _ _ - $151,147 00 'See page 56 MINERAL INDUSTRY OF CALIFORNIA. San Joaquin. Mineral Resources. — Brick, manganese, natural gas, glass sand. Commercial production for 1912 was as follows : Mineral Quantity Brick Natural gas Total — _. 6,128 M $64,874 00 145,166 GO $210,040 ( San Luis Obispo. Mineral Resources. — Asphalt, bituminous rock, brick, coal, copper, gold, gypsum, infusorial earth, limestone, marble, mineral water, onyx, petroleum, quicksilver, stone industry, silver. Commercial production for 1912 was as follows: Mineral Quantity j Value Bituminous rock 807 tons j $1,472 0( Gold (included in Monterey) Mineral water _ 2,500 gals. : 2,129 bbls. ; 6G6 flasks ; 625 0( Petroleum ^ 1,469 0( Quicksilver 27,998 0( Total $31,564 0' San Mateo. Mineral Resources. — Brick, gems, limestone, salt, stone industry. Commercial production for 1912 w^as as follows : Mineral Quantity Value Brick ._ - Limestone - - 1,400 M 102,300 tons 33,000 tons $40,500 a 66,495 80,000 29,587 Salt - - •Stone industry _ _ _ Total ___ - _ $216,582 a •See page 28. MINERAL INDUSTRY OF CALIFORNIA. 57 .anta Barbara. ^[iNERAL Resources. — Asphalt, bituminous rock, brick, clay, infu- ial earth, lime, limestone, mineral water, natural gas, petroleum, iiicksilver, sandstone, stone industry, (Commercial production for 1912 was as follows : Mineral Quantity Value . k __ 2,615 M 11,120 tons 12,000 tons 1,129 tons 17,500 bbls. 5,327 tons 105,000 gals. $17,150 00 5,556 00 iminous rock 16,000 00 iiiisorial earth 13,074 00 ime - _ ___ - - » 16434 00 imestone 11,666 00 [ineral water 11,550 00 atural gas 253,633 00 "troleum dstone ___ one industry 6.862"7i9 bbls. 4,500 eu. ft. 3.747,045 00 1,670 00 17,480 00 Total _ $4,111,258 00 anta Clara. Mineral Resources. — Brick, clay, limestone, magnesite, manganese, leral water, petroleum, quicksilver, stone industry, ommercial production for 1912 was as follows : Quantity Value rick 18,000 M 13,508 bbls. 3,374 tons 600 tons 152,500 gals. 14,092 bbls. 8,695 flasks $105,000 00 10,154 00 ime imestone _ 4,120 00 6,000 00 10,250 00 8 295 00 agnesite _ : __ ineral water _ _ otroleum _ _ Iiicksilver 365,538 00 ^tone industry 48,228 00 Total _ $557,585 00 anta Cruz. Mineral Resources. — Bituminous rock, cement, gold, lime , limestone, 3troleum, silver, stone industry. Commercial production for 1912 was as follows : Mineral Quantity Value fltuminous rock .__ 32,146 tons 169,646 bbls. 7,307 tons $80 439 00 flme _ 159,505 00 7,553 00 22 710 00 imestone __ '•tone industry _ _ I__I_^ Total _ $270,207 00 ♦See page 28. 1 58 MINERAL INDUSTRY OF CALIFORNIA. Shasta. Reference: State Mineralogist Report XI. Mineral Resources. — Asbestos, barytes, brick, chrome, copper, iron gold, lime, limestone, mineral water, pyrite, silver, stone industry. Commercial production for 1912 was as follows : Mineral Quantity Value Brick 1,697 M 1,000 tons 25,249,892 lbs. $10,195 [ 8,000 ( Chrome Copper 4,166,232 ( 986,803 1 Gold _ Lime '. 6,529 bbls. 58,022 tons 23,225 gals. 62,605 tons 3,584 \ L/imestone 45,575 ( 5 646 t Mineral water _ Pyrite 174,402 [ 425,382 ( Silver Total $5,825,819 ( 1 Sierra. Mineral Resources. — Asbestos, copper, gold, lead, silver. Commercial production for 1912 was as follows : Mineral Quantity Value Copper - _ _ - 1,285 lbs. $21'^ Gold 732,98> Lead 9.919 lbs. 446 Silver — 2,777 Total $736,423 Siskiyou. Mineral Resources. — Brick, chrome, coal, copper, gems, limestone, marble, mineral water, pumice stone, quicksilver, silver, stone industry. Commercial production for 1912 was as follows : gold, lim sandston Mineral Quantity Value Chrome - - _ _ - 220 tons $2,310 250 472,314 120,000 250 2,980 609 '. Gems ^ Gold i Mineral water - _ - » _ 700,000 gals. 250 cu. ft. Sandstone Silver _ _ *Stone industry ______ Total _ $598,713 15 i •See page 28. 'J MINERAL INDUSTRY OF CALIFORNIA. 59 olano. ^FiNERAL Resources. — Bituminous rock, brick, cement, clay, fuller's irth, limestone, mineral water, natural gas, onyx, petroleum, quick- Ivor, salt, stone industry. Commercial production for 1912 was as follows : rick Ineral water _. atural gas alt — Jtone industry Total Quantity 2.200 M 285,050 gals. 50 tons $20,000 00 44,000 00 8,528 00 100 00 130,445 00 $203,073 00 3noma. Mineral Resources. — Brick, crome, clay, copper, graphite, magnesite, arble, mineral paint, mineral water, petroleum, quicksilver, stone idustry. Commercial production for 1912 was as follows : Mineral Quantity Value agnesite ineral water _. aicksilver Itone industry Total 300 tons (52,500 gals. 646 flasks $3,000 00 20,950 00 27,158 00 295,198 00 $346,306 00 :anislaus. Mineral Resources. — Brick, clay, gold, manganese, mineral paint, licksilver, silver, stone industry. Commercial production for 1912 was as follows: lOnenl Quantity rick Did (including Alpine and Merced). lineral paint _ Iver _ _ _ tone industry ___ _ _. 250 M 100 tons $2,000 00 227,527 00 600 00 1,974 00 63,572 00 Total $295,673 00 fitter. Mineral Resources. — Clay. No commercial production for 1912 was reported. ' *See page 28. 60 MINERAL INDUSTRY OF CALIFORNIA. Tehama. Reference: State Mineralogist Report XI. Mineral Resources. — Brick, chrome, copper, gold, marble, minern water, petroleum, salt, stone industry, silver. Commercial production for 1912 was as follows : Mineral Quantity Value Brick 225 M 1 $1,300 ( \ $1.3('i Total Trinity. Mineral Resources. — Copper, gold, platinum, quicksilver, sil' stone industry. Commercial production for 1912 was as follows: Mineral Quantity Value Gold _ _._. $723,503 Quicksilver Silver 18 flasks 758 7,49' *Stone industry 2,a') Total $733,755 Tulare. Mineral Resources. — Asphalt, brick, clay, feldspar, gems, earth, magnesite, marble, natural gas, petroleum, glass sand, stone industry, zinc. Commercial production for 1912 was as follows : infusorij soapston, Quantity Brick Gems Magnesite Marble _._ 10,900 M 6,684 tons 100 cu. ft. Total $70,500 5,350 66,840 200 $142,890 Tuolumne. Mineral Resources. — Chrome, clay, copper, gold, lime, limeston marble, mineral paint, platinum, soapstone, silver, stone industi:, sulphur. Commercial production for 1912 was as follows: Mineral Quantity Value Gold $1,113,291 121,250 20,099 73,920 25,146 Lime _ _ » » _- « — - « — - 117,450 bbls. 11,554 tons 27,720 cu. It. Limestone _- - - - Marble _ Silver — . - Total .. $1,353,706 *See page 28. MINERAL INDUSTRY OF CALIFORNIA. 61 ;ntura. Mineral Resources. — Asphalt, borax, brick, cement, clay, gold, inin- water, natural gas, petroleum, sandstone, silver, stone industry. Uommercial production for 1912 was as follows : Quantity Value ick ay - - ttural gas troleum _. ndstone _. 550 M 1,000 tons 662,300 bbls. 4.600 cu. ft. Total $3,575 00 1,000 00 4,163 00 584,811 00 1,850 00 $595,399 00 >lo. Mineral Resources. — Quicksilver, sandstone. No commercial production for 1912 was reported. iba. Mineral Resources. — Brick, clay, gold, platinum, silver, stone dustry. Commercial production for 1912 was as follows : Mineral Value ►Id — $2,753,408 00 Iver - - ----- - - - 6,198 OO ;one industry 15,526 00 Total _ $2,775,132 00 lapportioned. Note. — The figures included under **unapportioned" are necessary cause of the fact that some branches of the mineral industry are so ptralized that if the value of their output were listed under the county pm which they come private business would be made public. For this ason there are several instances where the real value of the county neral yield is much greater than is shown in the foregoing tables. Quantity Value Wstos rytes rax ment al Idspar ller's earth - >n ore _ atinum mice da ^ngsten ^c Total ___ _-_ _ $7,821,357 00 90 tons 564 tons 42,135 tons 6,198,634 bbls. 14,848 tons 1,382 tons 876 tons 2,508 tons 603 oz. 100 tons 7,200 tons 8,042 tons 4,331,391 lbs. $2,700 00 2,812 00 1,122,713 00 6,074,661 00 39,092 00 6,180 00 6,500 00 2,508 00 19,731 00 2,500 00 37,094 00 206,000 00 298,866 00 •See page 28. 62 MINERAL INDUSTRY OF CALIFORNIA. APPENDIX. PUBLICATIONS Of THE CALirORNIA STATE MINING BUREAU. Publications of this Bureau will be sent on receipt of the requisite amount ant postage. Only stamps, coin or money orders will be accepted in payment. Money orders should be made payable to the State Mining Bureau. Personal checks will not he accepted. REPORTS. Asterisk (*) Indicates the publication is out of print 'Report I. Henry G. Hanks. 1880. 'Report II. Henry G. Hanks. 1882. 'Report III. Henry G. Hanks. 1883. 'Report IV. Henry G. Hanks. 1884. 'Report V, Henry G. Hanks. 1885. Report VI- -Part 1. Henry G. Hanks. 1886. 'Report VI- -Part 2. Wm. Irelan, Jr. 1886. 'Report VII. Wm. Irelan, Jr. 1887. 'Report VIII. Wm. Irelan, Jr. 1888. 'Report IX. Wm, Irelan, Jr. 1889. 'Report X. Wm. Irelan, Jr. 1890. Report XI. Wm. Irelan, Jr. 1892. ((First biennial.) 'Report XII. J. J. Crawford. 1894. (Second biennial.). 'Report XIII. J. J. Crawford. 1893. (Third biennial.).. Price. Posta«« - $1.00 $.1 ♦Bulletin 1. ♦Bulletin 2. ♦Bulletin 3. ♦Bulletin 4. ♦Bulletin 5. Bulletin 6. ♦Bulletin 7. ♦Bulletin 8. Bulletin 9. ♦Bulletin 10. •BuUetIn 11. ♦Bulletin 12. ♦Bulletin 13. ♦Bulletin 14. Bulletin 15. ♦Bulletin 16. ♦Bulletin 17. •BuUetIn 18. ♦Bulletin 19. ♦Bulletin 20. ♦BuUetIn 21. •Bulletin 22. Bulletin. Bulletin 23. ♦Bulletin 24. •Bulletin 26. Price. Postag BULLETINS. Dessicated Human Remains.— Winslow Anderson. 1888 Methods of Mine Timbering.— W, H. Storms. 1894 Gas and Petroleum Yielding Formations of the Central Valley of California.— W. L. Watts. 1894 Catalogue of California Fossils (Parts 2, 3, 4 and 5).— J. G. Cooper. 1894 The Cyanide Process: Its Practical Application and Economical Results.— A. Scheidel. 1894 California Gold Mill Practices.— E. B. Preston. 1895 $.50 Mineral Production of Cahfornia, by Counties, 1894.— Chas. G. Yale. (Tabulated sheet) ._. Mineral Production of California, by Counties, 1895.— Chas. G. Yale. (Tabulated sheet) __ Mine Drainage, Pumps, etc.— Hans C. Behr. 1896 .60 A Bibliography Relating to the G«ology, Palaeontology, and Mineral Resources of California.— A. W. Vodges. 1896 Oil and Gas Yielding Formations of Los Angeles Ventura, and Santa Barbara Counties.— W. L. Watts. 1896 Mineral Production of California, by Counties, 1896.— Chas. G. Yale. (Tabulated sheet) _ — Mineral Production of California, by Counties, 1897.— Chas. G. Yale. (Tabulated sheet) Mineral Production of California, by Counties, 1898.— Chas. G. Yale. (Tabulated sheet) Map of Oil City Oil Fields, Fresno County.— J. H. Means .05 The Genesis of Petroeum and Asphaltum in California.— A. S. Cooper. 1899 Mineral Production of CaUfoniia, by Counties, 1899.— Chas. G. Yale. (Tabulated sheet) __ The Mother Lode Region of California.— W. H. Storms. 1900.. ._ OH and Gas Yielding Formations of California.- W. L. Watts. 1900 Synopsis of Reports of State Mining Bureau.— W. L. Watts. 1900 Mineral Production of California, by Counties, 1900. Chas. G. Yale. (Tabulated sheet) - - Mineral Production of California for Fourteen Years.- Chas. Q. Yale. 1900. (Tabulated sheet) Reconnaissance of the Colorado Desert Mining District.— Stephen Bowers. 1901 _ The Copper Resources of California.— P. C. DuBols, F. M. Anderson, J. H. TIbbits, and G. A. Tweedy. 1902 50 The Saline Deposits of California.— G. E. Bailey. 1902 Mineral Production of California, by Counties, 1901.— Chas. G. Yale. (Tabulated sheet) -1 MINERAL INDUSTRY OF CALIFORNIA. 63 UBLICATIONS OF THE CALIFORNIA STATE MINING BUREAU— Continued. Asterisk (*) Indicates the publication is out of print. Price. Postage. Bulletin 26. Mineral Production of California for Fifteen Years.— Chas. G. Yale. 1901. (Tabulated sheet) Bulletin 27. The Quicksilver Resources of California. Wm. Porstner. 1903 $.75 $.14 Bulletin 28. Mineral Production of California, by Counties, 1902.— Chas. G. Yale. (Tabulated sheet) _ Bulletin 29. Mineral Production of California for Sixteen Years.— Chas. G. Yale. 1902. (Tabulated sheet) Bulletin 30. A Bibliography of Geology, Palaeontology, and Mineral Resources of California.— A. W. Vodges. 1903___ Bulletin 31. Chemical Analyses of Cahfornia Petroleum.— H. N. Cooper. 1903. (Tabulated sheet) .02 Bulletin 32. Production and Use of Petroleum in California.— P. W. Prutzman. 1904 ,25 .08 bulletin 33. Mineral Production of California, by Counties, 1903.— Chas. G. Yale. (Tabulated sheet) bulletin 34. Mineral Production of California for Seventeen Years.— Chas. G. Yale. 1903. (Tabulated sheet) Julletin 35. Mines and Minerals of California for 1903.— Chas. G. Yale. 1904. (Statistical) Bulletin 36. Gold Dredging in California.— J. E. Doolittle. 1905 Bulletin 37. Gems, Jewelers' Materials, and Ornamental Stones of California. — George F. Kunz. 1905: First edition (without colored plates) .25 .08 Second edition (with colored plates) .50 .08 Bulletin 38. The Structural and Industrial Materials of California.- Wm. Forstner, T. C. Hopkins, C. Naramore, L. H, Eddy. 1906_ Julletin 39. Mineral Production of California, by Counties, 1904.— Chas. G. Yale. (Tabulated sheet) __ Bulletin 40. Mineral Production of California for Eighteen Years.— Chas. G. Yale. 1904. (Tabulated sheet) ._-____ 5ulletin 41. Mines and Minerals of California for 1904.— Chas. G. Yale. (Statis- tical) bulletin 42. Mineral Production of California, by Coimtles, 1905.— Chas. G. Yale. (Tabulated sheet) 5ulletin 43. Mineral Production of California for Nineteen Years.— Chas. G. Yale. 1905. (Tabulated sheet) killetin 44. Mines and Minerals of California for 1905.— Chas. G. Yale. (Statis- tical) . . bulletin 45. Auriferous Black Sands of California.— J. A. Edman. 1907 _.. bulletin 46. General Index to Publications of the State Mining Bureau.- Compiled by Chas. G. Yale. 1907 30 .06 bulletin 47. Mineral Production of California, by Counties, 1906.— Chas. G. Yale. (Tabulated sheet) Uilletin 48. Mineral Production of California for Twenty Years.— Chas. G. Yale. 1906. (Tabulated sheet) 5ulletin 49. Mines and Minerals of California for 1906.— Chas. G. Yale. (Statis- tical) _ bulletin 50. The Copper Resources of California.— A. Hausmann, J. Krutt- schnitt, Jr., W. E. Thome, J. A. Edman. 1908 1.00 .20 5ulletin 51. Mineral Production of California, by Counties, 1907.— D. H. Walker, Statistician. (Tabulated sheet) . bulletin 52. Mineral Production of California for Twenty-one Years.— D. H. Walker, Statistician. 1907. (Tabulated sheet) '.ulletin 53. Mineral Productions of California for 1907, with County Maps.— D. H. Walker, Statistician. 1908. (Statistical) 5ulletin 54. Mineral Production of California, by Counties, 1908.— D. H. Walker, Statistician. (Tabulated sheet) iulletin 55. Mineral Production of California for Twenty-two Years.— D, H. Walker, Statistician. 1908. (Tabulated sheet) '.ulletin 56. Mineral Productions for 1908, County Maps, and Mining Laws of California.— D. H. Walker. 1909. (Statistical) '.ulletin 57. Gold Dredging in California.— W. B. Winston, Charles Janin. 1910__ 1.50 .15 Julletin 58. Mineral Production of California, by Counties, 1909.— D. H. Walker, Statistician. (Tabulated sheet) _— _ _ Julletin 59. Mineral Production of California for Twenty-three Years.— D. H. Walker, Statistician. 1909. (Tabulated sheet) Sulletin 60. Mineral Productions for 1909. County Maps, and Mining Laws of California.— D. H. Walker. 1910. (Statistical) iulletin 61. Mineral Production of California by Counties for 1910.— D. H. Walker, Statistician. (Tabulated sheet) _. .02 64 MINERAL INDUSTRY OF CALIFORNIA. PUBLICATIONS OF THE CALIFORNIA STATE MINING BUREAU— Continued. Asterisk (*) indicates tlie publication is out of print. Price. Postage. Bulletin 62. Mineral Production of California for Twenty-four Years.— D. H. Walker, Statistician. 1910. (Tabulated sheet) $.02 Bulletin 63. Petroleum Development in Southern California.— P. W. Prutzman. 1912 $1.50 .22 Bulletin 64. Mineral Production for 1911.— E. S. Boalich, Statistician, 1912 Bulletin 65. Mineral Production for 1912,— E. S. Boalich, Statistician, 1913 REGISTERS OF MINES WITH MAPS. Amador County ' - $.25 $, Butte County _ - .25 •Calaveras County — — - - — *E1 Dorado County - *Inyo County — - •Kern County — -- •Lake County Mariposa County .25 •Nevada County •Placer County — - - •Plumas County •San Bernardino County - — San Diego County - .25 Santa Barbara County - .25 •Shasta County •Sierra County - •Siskiyou County •Trinity County •Tuolumne County _ Yuba County .25 Register of Oil Wells (with map), Los Angeles City .35 OTHER MAPS. California, Showing Mineral Deposits- Mounted „ - - $1.50 $ Unmounted , - 30 Forest Reserves in California- Mounted - -50 Unmoimted _ — - — -30 Mineral and Relief Map of California - .25 El Dorado County, Showing Boundaries of National Forests .20 Madera County, Showing Boundaries of National Forests - .20 Placer County, Showing Boundaries of National Forests .20 Shasta County, Showing Boundaries of National Forests — .20 Sierra County, Showing Boundaries of National Forests .20 Siskiyou County, Showing Boundaries of National Forests .20 Trinity County, Showing Boundaries of National Forests _ .45 Tuolumne County, Showing Boundaries of National Forests .20 •Mother Lode Region Desert Region of Southern California— -10 Minaret District, Madera County -20 Copper Deposits in California. - - -10 Nevada County — -25 Placer County __ - -25 Plumas County _ - •2f> Tuolumne County •2>> DETERMINATION OF MINERAL SAMPLES. Samples (limited to three at one time) of any mineral found in the State may be sent to the Bureau for identification, and the same will be classified free of clmrpe. No samples will be determined if received from points outside the State. It must be understood that no Assays, or Quantitative Determinations will be made. Samples should be in a lump form if possible, and marked plainly with name of sender outside of package, post office address, etc. No samples will be received unless charj?os are prepaid. A letter should accompany sample and a stamp should be enclosed for reply. THIS BOOK IS DUE ON THE LAST DATE STAMPED BELOW AN INITIAL FINE OF 25 CENTS WILL BE ASSESSED FOR FAILURE TO RETURN THIS BOOK ON THE DATE DUE. THE PENALTY WILL INCREASE TO 50 CENTS ON THE FOURTH DAY AND TO $1.00 ON THE SEVENTH DAY OVERDUE. m^ ECEIVED DEC 6 mf}^ PHYS SCI LIBRARY Book SIip-20m-5,'59(,A2537s4)458 iaiS2o Calif. Dept. of natural resources. Div. of mines Bulletin. PHYSICAL SCi£WCE$ CaUNrnnbcxc TN2li C3 A3 no.6ii-66 TN54~ C3 ' A5 LIBRARY UNIVERSITY OF CAUFORNaT im590