TN C3 A3 Mo. 6^- 66 LIBRARY ^ CALIFORNIA STATE MINING BUREAU FERRY BUILDING. SAN FRANCISCO WILLIAM H. STORMS .... State Mineralogist BULLETIN No. 64 san francisco, November, 1912 Mineral Production for 1911 By E. S. BOALICH, Statistician LIBRARY UNIVERSITY OF CAUFORNIA DAVIS ^^END Wm. Richabdson, Supbbintsndemt of State Printing SACBAMENTO, CALIPOBNIA 1912 L!J] ! lA r vY - UNIVERSITY OF CALIFORNIA r miiM^^r:^:^^^-^ syi^emixsS'Sjmsft; LIBRARY ■>^aH^ UNI DEPARTMENT GRICULTURE • 9 8— ist; CALIFORNIA STATE MINING BUREAU FERRY BUILDING. SAN FRANCISCO WILLIAM H. STORMS - - - . State Mineralogist BULLETIN No. 64 san francisco, November, 1912 Mineral Production for 1911 By E. S. BOALICH, Statistician Friend Wm. Richardson, Superintendent of State Printing sacramento, california 1912 CALIFORNIA STATE MINING BUREAU. W. H. STORMS State Mineralogist. BOARD OF TRUSTEES. A. H, Ward, Alameda - - - - - - President. Henry E. Monroe, San Francisco ----- Secretary. Calvert Wilson, Los Angeles. E. C. Hutchinson, San Francisco. STAFF. E. B. Preston Determinative Mineralogist. F. L. Lowell Curator. Walter W. Bradley Librarian E. S. BOALICH Statistician. W. W. Thayer Secretary. TABLE OF CONTENTS. Page THE MINERAL INDUSTRY IN 1911 5 MINERAL SUBSTANCE, AMOUNT AND VALUE, 1911 6 MINERALS PRODUCED IN 1910 AND 1911 7 TOTAL PRODUCTION BY COUNTIES, 1911 8 TOTAL GOLD PRODUCTION OF CALIFORNIA 9 TOTAL PETROLEUM PRODUCTION OF CALIFORNIA 10 TOTAL CEMENT PRODUCTION OF CALIFORNIA 11 ITEMIZED OUTPUT, BY MINERAL, 1911-— 12 Page _ 12 Antimony Asbestos Asphalt Barytes Bismuth Bituminous Rock 13 Borax 13 Cement 1"* Chrome 1* Clay Brick 14 Clay Pottery 15 Coal 16 Copper 16 Crushed Rock 16 Feldspar 20 Fuller's Earth 20 Gems 20 Gold 22 Granite 22 Graphite 23 Gypsum 24 Infusorial Earth 24 Iron Ore 24 Page Lead 25 Lime and Limestone 25 Macadam 17 Magnesitb 26 Manganese 26 Marble 26 Mineral Paint 27 Mineral Water 27 Natural Gas 28 Onyx and Travertine 28 Paving Blocks 28 Petroleum 29 Platinum 29 Pyrite 29 Quicksilver 30 Rubble 18 Salt 31 Sand-glass 31 Sandstone 32 Silver 32 Soda ^^- 33 Tungsten 33 Zinc 33 ITEMIZED OUTPUT BY COUNTIES, ARRANGED ALPHABETICALLY, 1911 35 LIST OF PUBLICATIONS OF STATE MINING BUREAU 47 MINERAL INDUSTRY, CALIfORNIA, 1911. Data Compiled from Direct Returns from Producers in Answer to Inquiries sent out by California State Mining Bureau, Ferry Building, San Francisco. By E. S. BoALiCH, Statistician. THE MINERAL INDUSTRY OF CALIFORNIA IN 1911. Fifty-five out of the fifty-eight counties in California reported a production of one or more of forty minerals during the year 1911, amounting to a total value of $87,497,879. This value, and all others mentioned in this Bulletin, are for crude material at the property. The above total as compared with the 1910 output of $88,419,079 shows an apparent decrease in 1911 of $921,200. The two amounts are not strictly comparable, however, because of the fact that the 1910 total contains the value of refined asphalt produced during that year. In the 1911 figures this material, the value of which equals $2,250,000, has been excluded, as no natural asphalt is produced in the State and therefore could not be included without duplication of a portion of the petroleum output. This also applies to other refined mineral products, which includes kerosene, gasoline and other products of the fractional distil- lation of crude petroleum. Petroleum is treated in this report as a whole, and to add to the output the value of these refined products would be a duplication of figures, which no matter how gratifying in swelling the grand total, would be not only misleading, but improper. As has been the case in recent years, petroleum production leads all others by a wide margin, the total output for the year amounting to 84,648,157 barrels, valued at $40,552,088. Gold comes second with a value of $19,738,908. Cement ranks third, the total output amounting to 6,371,369 barrels, worth $9,085,625. Although greatly curtailed owing to smelter-fume troubles, copper holds fourth place on the list with a production valued at $4,604,753. Other minerals, each with a value of over a million dollars, are as follows : Crushed rock, including sand and gravel, $3,610,357 ; brick, $2,638,121 ; borax, $1,456,672. It wiU be observed that the increase in the value of the output of cement was nearly $3,300,000 over that of the previous year. It may be expected that the present year, 1912, will see this amount swelled to a figure well over $10,000,000. 6 MINERAL INDUSTRY OF CALIFORNIA. The following table shows the yield of mineral substances of Califor- nia for 1911 as compiled from the returns received at the State Mining Bureau, San Francisco, in answer to inquiries sent to producers : Amount. Value. Asbestos Barytes Bituminous rock Borax Cement Chrome Clay, brick Clay, pottery Coal Copper Crushed rock _ Feldspar Fuller's earth Gems 125 309 75,125 50,945 371,369 935 327,474 224,576 11,047 838,024 487.223 740 466 tons tons tons tons bbls. tons M tons tons lbs. tons tons tons Gold Granite Gypsum Infusorial earth Iron ore Lead Lime Limestone Magnesite Manganese Marble Mineral paint Mineral water Natural gas Paving blocks Petroleum 84 Platinum Pyrite Quicksilver Salt Sand, glass Sandstone Silver Soda Tungsten 1 Zinc 401,209 31,457 2,194 558 ,403,839 429,587 516,398 8,858 2 20,201 186 ,637,669 cu. ft. tons tons tons lbs. bbls. tons tons tons cu. ft. tons gals. 4,141 648,157 511 54,225 19,109 173,332 8,620 255,313 M bbls. oz. tons flasks tons tons cu. ft. 9,023 ,679"842' tons lbs"" Total $500 2,207 117,279 1,456,672 9,085.625 14.197 2,638,121 252,759 18,297 4.604.753 3.610,357 4.560 5,294 51,824 19,738.908 355.742 101,475 19,670 558 63.173 390,988 452,790 67,430 40 54,103 1,184 590,654 491,859 210,819 40,552,088 14.873 182,954 879,205 324,255 8,672 127,314 673,336 52,887 127,706 152,751 $87,497,879 00 The following pages treat in detail of the production by county as well as by mineral. Some counties are much larger producers of mineral than others. Kem County for instance produced last year more than $20,000,000 worth of petroleum, and Fresno County's oil production exceeded $9,300,000, while that of Los Angeles was over $3,300,000. The largest copper producer was Shasta County with nearly $3,700,000, and that of Calaveras County was $773,769. Nine counties produced the remainder of a total of $4,604,753. STATISTICS STATE MINING BUKEAU. The following table shows the comparative value of minerals pro- duced in California during the years 1910 and 1911 : 1911. rock Asbestos -— Asphalt Barytes Bituminous Borax Cement Chrome Clay, brick Clay, pottery _, Coal Copper Crushed rock __. Feldspar Fuller's earth __. Gems Gold Granite Gypsum Infusorial earth Iron ore I-ead Lime Limestone Macadam Magnesite Manganese Marble Mineral paint _-. Mineral water __. Natural gas Paving blocks _. Petroleum Platinum Pyrite Quicksilver Rubble Salt Sand, glass Sand, quartz Sandstone Silver Slate Soapstone Soda Tungsten Zinc $20,000 00 2,125,122 00 5,640 00 165,711 00 1.177,960 00 7,485,715 00 9,707 00 2,934,731 00 324,099 OO 23,484 00 6,680,641 00 2 5,720 00 3,820 00 237,475 00 19.715,440 00 417,898 00 129,152 00 17,617 00 900 00 134,082 00 1,058,891 00 1,104,526 00 113,887 00 4,235 00 50,200 00 2,040 00 522,009 00 1,676,367 00 198,916 00 37.689,542 00 8,386 00 179,862 00 799,002 00 1,673,164 00 395,417 00 8,165 00 10,100 00 80,443 00 993,646 00 8,000 00 7,260 00 11,862 00 208,245 00 $500 00 2,207 00 117,279 00 1,456,672 00 9,085,625 00 14,197 00 2,638,121 00 252,759 00 - 18,297 00 4,604,753 00 3,610,357 00 4.560 00 5,294 00 51,824 00 19,738,908 00 3355,742 00 101,475 00 19,670 00 558 00 63,173 00 390,988 00 452.790 00 5 67.430 00 40 00 54.103 00 1.184 00 590.654 00 491,859 00 210,819 00 40.552,088 00 14.873 00 182,954 00 879.205 00 324,255 00 8,672 00 127,314 00 673,336 00 52,887 00 127,706 00 152,751 00 Total $88,419,079 00 $87,497,879 00 Not included. -Macadam and rubble. Including curbing. 'Included in lime. ^Included in crushed rock. MINERAL INDUSTRY OF CALIFORNIA. The following tabulation shows the comparative mineral production of the various counties of the State during the two years, 1910 and 1911 : County. 1911. Alameda Amador Butte Calaveras Colusa Contra Costa Del Norte El 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 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 Yuba UDapportioned .. $1,205,387 00 $799,639 00 2,785,767 00 2,993,670 00 2,529,179 00 2,406,856 00 2,026,166 00 1,970,059 00 148,005 00 138,227 00 484,923 00 594,256 00 5,845 00 . 1,750 00 194,631 00 153,918 00 9,505,699 00 ; 9,711,463 00 34,020 00 i 51,430 00 77,437 00 1 76,858 00 97,656 00 1 105,044 00 704,473 00 1 710,033 00 19.614,014 00 21.176,534 00 10,085 00 900 00 142,427 00 100,296 00 83,152 00 1 5,525,317 00 5,407,863 00 133,766 00 80,201 00 183,885 00 232,731 00 346,245 00 175,752 00 500 00 1,600 00 71,064 00 49,548 00 5,513 00 i 20,238 00 445,115 00 298,405 00 162,523 00 74,536 00 244,410 00 220,399 00 2,553,204 00 2,219,214 00 3,220,164 00 4,113,585 00 583,659 00 539,246 00 200,870 00 230,010 00 507,406 00 622,489 00 1,660,970 00 2,109,678 00 584,343 00 558,846 00 447,836 00 710,108 00 374,874 00 419,008 00 120,126 00 119,636 00 376,149 00 189,593 00 215,322 00 75,556 00 279,872 00 233,985 00 5,334,960 00 3,411,107 00 420,782 00 461,611 00 400,794 00 338,814 00 8,203,677 00 5,406.461 00 313,365 00 467.117 00 527,178 00 553,037 00 255,169 00 188,848 00 283,113 00 238,610 00 223.061 00 315.219 00 4,400 00 500 00 508.433 00 620,950 00 206,050 00 158.335 00 755,591 00 1,240,734 00 392,974 00 362,810 00 3,209,645 00 3,011,689 00 9.487,888 00 11,028,877 00 $88,419,079 00 $87,497,879 00 Totals j $88,419,079 00 'Included in Colusa flguree. A glance at the above tabulated statement will give the best idea of the relative production of the various counties. It will be observed that out of the fifty-eight counties of the State fifty-five contributed to the mineral output of 1911. STATISTICS STATE MINING BUREAU. 9 The figures opposite ' ' unapportioned " are necessary because of the fact that some branches of the mineral industry are so centralized, that if the value of their output were listed under the county from which they come private business would be made public. For this reason there are several instances where the real value of the county mineral yield is much greater than is shown in the above summary. The omission of the value of asphalt in the 1911 figures is account- able for an undue decrease in the case of counties where oil refineries are located. The figures for 1910 included asphalt, which was in fact a partial duplication of petroleum value. 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. Mint at ^an 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. Mining 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 '* Precious Metals" (1867) ; John J. Valentine, author for many years of the annual report on Precious Metals published by Wells Fargo and Company's Express; and Louis A. Garnett, in the early days manager of the San Francisco refinery where records of gold receipts and shipments were kept. Mr. Yale obtained other data from the reports of the 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 published data, and the final table quoted was then made up. The figures of the last six years are those prepared for the U. S. Geological Survey. The table shows that California has produced a total of about $1,548,000,000 in gold since 1848. This enormous amount of gold would weigh about 2,580 tons and would require a train of 52 freight cars, each holding fifty tons of the metal. What the ultimate production of gold in California will be, only the future can tell, but at the present the total is being swelled at the rate of about $20,000,000 annually, and this amount is likely to become more rather than less, for some years to come. 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-tom and sluice, and even the hydraulic method had been introduced in a small way. 2— MB64 10 MINERAL INDUSTRY OF CALIFORNIA. Total Gold Product of California, 1848-1911. Amount, Tear. 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 $245,301 10,151,360 41,273,106 75,938,232 81,294.700 67,613,487 69,433,931 55,485,395 57,509,411 43,628,172 46,591,140 45,846,599 44,095,163 41,884,995 38,854,668 23,501,736 24,071,423 17,930,858 17,123,867 18,265,452 17,555,867 18,229,044 17,458,133 17,477,885 15,482,194 15,019,210 17,264,836 16,876,009 15,610,723 16,501,268 18,839,141 19,626,654 20,030,761 1881 .. 1882 .. 1883 - 1884 _. 1885 .. 1886 .. 1887 _. 1888 _. Amount. 1890 1891 1892 1893 1894 1895 1896 1897 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 $19,223,155 00 17,146,416 00 24,316,873 00 13,600,000 00 12,661,044 00 14,716,506 00 13,588,614 00 12,750,000 00 11,212,913 00 12,309,793 00 12.728.869 00 12,571,900 00 12,422,811 00 13,923,281 00 15,334,317 00 17,181,562 00 15,871,401 00 15,906,478 00 15,336,031 00 15,863,355 00 16,989,044 00. 16,910,320 00 16,471,264 00 19,109,600 00 19,197,043 00 18,732,452 00 16,727,928 00 18,761,559 00 20.237.870 00 19,715,440 00 19,738,908 00 Total $1,547,967,468 00 This Bureau has never independently collected statistics of gold and silver output, but has used totals and distribution by county, as obtained from the U. S. Geological Survey. All gold, silver, and platinum figures in this Bulletin are derived from this source. Petroleum production in California — 1875-1911. For the early years of petroleum production in California the statis- tical records are rather incomplete, especially as to price. In Bulletin No. 60, California State Mining Bureau, the total value of petroleum produced from 1887 to 1909, inclusive, is given as $136,693,228. Add- ing to this amount the value of the 1910. and 1911 output gives a grand total of $214,934,858 for the value of the petroleum produced in the State during the past twenty-five years. The following table is of much interest to all who are engaged in the production of petroleum. It was about twenty years before the output of the entire State reached the dignity of a million barrels annually. Within the past ten years the annual production has increased with little fiuctuation from about 14,000,000 barrels to over 84,000,000 barrels annually. STATISTICS STATE MINING BUREAU. 11 Amount of annual production, by barrels, is given in the following table. (The number of barrels credited to the year 1875 represents all production up to and including that date) : Year. Barrela. 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 175,000 12,000 13,000 15,227 19,858 40,552 99,862 128,636 142,857 262,000 325,000 377,145 678,572 690,333 303,220 307,360 323,600 385,049 470,179 783,078 Year. 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 Barrels. 245,339 257,780 911,569 249,088 677,875 329,950 710,315 356,910 340,839 736,003 275,701 624,000 311,171 306,910 191,723 697,568 648,157 Total (barrels) 471,423,426 Cement production in California — 1891-1911. 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 petroleum the growth of the industry has been stupendous, and a com- parison of the annual figures representing the output since the incep- tion of the industry is of interest. Year. Amount, barrels. Value. 1891 _ 5,000 5,000 $15,000 00 1892 - 15,000 00 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 Totals 8,000 16,383 9,500 18,000 50,000 60.000 52,000 71,800 171,000 640,868 969,538 1,265.553 1,286,000 1,613,563 1,629,615 , 3,779,205 I 5,453,193 6,371,369 23,475,587 21,600 00 32,556 00 28,250 00 66,000 00 150,000 00 180,000 00 121,000 00 159,842 00 423,600 00 968,727 00 ,539,807 00 ,791,916 00 ,941,250 00 ,585,577 00 359,692 00 ,969,437 00 ,485,715 00 085,625 00 $33,940,594 00 12 MINERAL INDUSTRY OF CALIFORNIA. Antimony. Antimony deposits have been worked in a small way in the past, in Inyo, Kern, Riverside, and San Benito counties. No production has been reported since 1901 although in the present year, 1912, there has been some active development work done and a renewed output of this metal is looked for in the near future. Antimony occurs in some other localities than those above mentioned. Reference: Bull. 38:62. Eighth Report, p. 485. Tenth Report, p. 515. Eleventh Report, p. 371. Thirteenth Report, p. 31. Asbestos. Deposits of asbestos are located in Amador, Butte, El Dorado, Fresno, Placer, Riverside, San Bernardino, San Diego, Sierra and Trinity counties. There are surface indications of the mineral in many other counties but, to date, little if any development work has been done upon them. The actual production of asbestos in California is very small, the amount reported to the State Mining Bureau being only 125 tons, valued at $500, for 1911. Less than 10 per cent of the asbestos used in the United States is produced in this country, and of this amount practically all is mined in the Eastern and Middle Western states. The great bulk of the raw product is imported from Canada where a high grade of asbestos of long fiber and great tensile strength is produced. The uses of this mineral are many and constantly increasing, and as the requirements for asbestos in California increase the industry will in time become an important one in this State. The lower grades, used in fireproof roofing, etc., bring a price of about $20 per ton, and from this figure the price goes up as high as $200 per ton for asbestos which is suitable for the manufacture of curtains and tapestries and other fabrics, as well as for steam packing, friction facing for brakes, insulating tapes, etc. Two distinct minerals are known on the market as asbestos. One is called tremolite, the other chrysotile. These are trade terms. The latter is superior in strength and flexibility. For complete information regarding the properties of this mineral, and location of deposits in California, see Bulletin No. 38, p. 261. Asphalt. Natural asphalt exists in small amount in Kern, Los Angeles, Mon- terey, San Luis Obispo, Santa Barbara, Santa Clara, Santa Cruz, and Ventura counties. For economic reasons refined asphalt, only, has been commercially used in the State in recent years. In excess of 180,000 tons of the refined product were produced from petroleum in California during 1911, having a value exceeding $2,250,000. These figures are not used in the total mineral production of the State because the value STATISTICS STATE MINING BUREAU. 13 of the crude petroleum from which it is made has been included, and the addition of the value of this by-product would give an erroneous result, too high by the above amount. Oil refineries are situated in the following counties : Alameda, Contra Costa, Fresno, Kern, Los Angeles, San Diego, Santa Barbara, San Luis Obispo, San Francisco, and Ventura. California's production of asphalt in 1911 was greater than the entire amount imported into the United States from all foreign coun- tries. It is used principally in street paving; also for roofing, water- proofing, insulating and as a preservative for piling, etc. Ba ry tes. \\ Deposits of barytes are known in Butte, Mariposa, Shasta, and San\ \ Bernardino counties. Production in the State for the year 1911 ^ amounted to 309 tons valued at $2,207, or an average value of a little more than $7 per ton. This is for crude material at the property. If the product is sorted and ground the average price obtained is about double the figure named. Its principal uses are in the paint industry, in the manufacture of paper and rope, in the tanning of leather, and in the refining of sugar. The demand for barytes is increasing. Bismuth. Bismuth is not abundant in California although an important locality has been reported, viz., near the head of Thousand Palm Canon in Riverside County, about 25 miles northeasterly from Indio, at the Lang copper mine. Bituminous rock. San Luis Obispo, Santa Cruz, and Solano counties Reported produc- tion of bituminous rock in 1911, to the amount of 75,125 tons valued at $117,279. Used entirely in road building. Distributed as follows: County. Amoimt, tons. San Luis Obispo Santa Cruz Solano Totals 2,710 24,815 47,600 $5,230 00 80,371 00 31,678 00 75,125 $117,279 00 Borax. Deposits of borax are known in Inyo, Kern, Lake, Los Angeles, Imperial, San Bernardino, Solano, Tehama, and Ventura counties. In the 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 1^ MINERAL INDUSTRY OF CALIFORNIA. California, which is the sole domestic source of borax, in 1911 amounted to 50,945 tons valued at $1,456,672. Cement. The growth of the cement industry has been one of the noteworthy features of the mineral industry in recent years. The first authentic reported production of cement in California was in 1891 when 5,000 barrels, valued at $15,000, represented the output. During 1911 the production was 6,371,369 barrels, valued at $9,085,625, or an increase of 918,176 barrels, and $1,599,910 in value over the previous year, when the yield amounted to 5,453,193 barrels worth $7,485,715. The great and growing popularity of concrete buildings and other structures in the State is largely responsible for the above remarkable showing. In value of annual output cement is now surpassed only by petroleum and gold. The industry, as is the case with one or two others, is so highly cen- tralized that it is impossible to apportion the production to the counties in which the plants are located without making private business public. Chrome. Chrome, or chromite, is produced in California to a very limited extent although the deposits are the most extensive of any in the United States. Chrome has been mined in the following counties : Alameda, Calaveras, Del Norte, Fresno, Glenn, Lake, Placer, San Benito, San Luis Obispo, • Shasta, Siskiyou, Sonoma, Tehama, Trinity, and Tuolumne. During 1911 the reported production of chromite was as follows : County. Amount, tons. Value. Alameda 60 875 $500 Oi) Shasta 13,697 GO Totals 935 $14,197 00 Clay brick. Brick of every description including clay, magnesite, sand lime, com- mon, pressed and glazed, were produced in California during 1911 to the amount of 327,474 M valued at $2,638,121, as compared with 340,883 M worth $2,934,731 manufactured and sold in 1910. The decrease is due to overproduction in 1910 as well as to a natural falling off owing to the unprecedented gain in concrete construction of all kinds. Clays are abundant in many counties of California, and large indus- tries have been built up in the manufacture of the great variety of clay products. There is less really fine kaolin than is desired. However, a porcelain factory has been built at Richmond in Contra Costa County, where this refined branch of the clay industry is in o- fair way to ])e carried to success. ^ STATISTICS STATE MINING BUREAU. The detailed figures tabulated by counties follows : 15 County. Amount, M. Value. Alameda Amador Contra Costa _-_ Fresno Humboldt Imperial Kern Los Angeles Madera Marin Mendocino Orange Placer Riverside Sacramento San Bernardino . San Diego San Joaquin San Luis Obispo San Mateo Santa Barbara _. Santa Clara Shasta Solano Stanislaus Tulare Ventura Unapportioned _. Totals 19,660 2.000 36,463 4,500 357 1,200 5,603 160,259 270 19,695 160 1,650 700 3,675 13,917 1,340 9.500 5,275 2,000 1,350 1,600 6,000 2.825 500 850 10,225 900 15,000 $153,330 00 20,000 00 271.575 00 28,500 00 2,880 00 7,000 00 41,426 00 1,442,913 00 1,350 00 87,445 00 1,600 00 11,550 00 - 18,000 00 28,572 00 76,571 00 8,040 00 68,000 00 49,650 00 18,000 00 43,000 00 13.800 00 30,000 00 20,094 00 4,000 00 5,950 00 81,000 00 5.100 00 98,775 00 327,474 $2,638,121 00 Clay — Pottery. At one time or another pottery clays have been quarried in thirty- ! three different counties in the State, from Siskiyou in the north to San Diego in the south. The production as reported by operators for the year 1911 amounted to 224,576 tons valued at $252,759 as compared with the output of 249,028 tons worth $324,099 in 1910. From present indi- cations this falling off is merely temporary as the first half of 1912 has seen the installation of several new plants for the handling of this product and the future prospects of the industry are of the brightest. Following is a tabulation of the direct returns by counties : County. Amount, tons. Value. Alameda 10,500 43,352 50 937 242 15,650 1,100 2,000 43,120 67,295 920 25,510 12,000 1,900 $8,300 00 Amador 37,395 00 Calaveras __ 200 00 Humboldt _ _ 937 00 Kern _ _ _ _ _ 121 00 Los Angeles _ _ _ _ _ 41,025 00 Monterey 4,950 00 Orange 3,200 00 Placer _ 29,200 00 Riverside 79.961 00 San Bernardino 4.060 00 San Joaquin _ _ _ _ 25,510 00 Santa Barbara _ _ _ 16.000 00 ^Vntura ; 1.900 00 Totals - _ 224,576 $252,759 00 1(5 MINERAL INDUSTRY OF CALIFORNIA. Coal. Coal deposits developed to a greater or less extent are found in the following counties of the State: Alameda, Amador, Calaveras, Colusa, Contra Costa, Del Norte, Fresno, Humboldt, Kern, Mendocino, Modoc, Monterey, Orange, Riverside, Sacramento, San Benito, San Diego, San Luis Obispo, Santa Clara, Shasta, Siskiyou, Sonoma, Stanislaus, Sutter, and Trinity. Actual production is small, amounting to but 11,047 tons valued at $18,297 during 1911. Coal has been produced contin- uously in this State since 1861. Up to 1903 the annual output varied between 100,000 and 200,000 tons. With the advent of petroleum as a fuel the coal production has rapidly dwindled. "With one or two excep- tions California coal is a lignite of inferior quality. Copper. Copper is widely distributed throughout the State, the following counties containing copper ores : Alameda, Alpine, Amador, Calaveras, Colusa, Contra Costa, Del Norte, El Dorado, Fresno, Glenn, Humboldt, Inyo, Kern, Lassen, Los Angeles, Madera, Marin, Mariposa, Mendocino, Merced, Mono, Napa, Nevada, Placer, Plumas, Riverside, San Benito, San Bernardino, San Diego, San Luis Obispo, Santa Clara, Shasta, Sierra, Siskiyou, Sonoma, Stanislaus, Sutter, Tehama, Trinity, Tulare, Tuolumne, and Yuba. Eleven counties reported production for the year 1911, the total amounting to 36,838,024 pounds valued at $4,604,753, as compared with 53,721,032 pounds worth $6,680,641 in 1910. The great decrease is due to the much discussed ''fume" trouble between the smelters and the farmers of the various adjacent localities, as well as with the govern- ment. This difference, however, seems now to be in a fair way to finding a satisfactory solution. Copper Output for 1911 by Counties. County. Amount, pounds. Value. Amador _ - _ 227.848 6,190,153 27,889 29,441 14,608 14,641 1.665 118.624 6.753 666.489 29.539,913 .$28,481 GO Calaveras Inyo 773.769 00 3.486 00 Kern 3.680 GO Madera • 1.826 00 Mariposa _ _ 1.8.10 GO Nevada _ - 209 GO Placer - _ 14,828 GO Riverside 844 GO San Bernardino 83.311 0() Shasta _ 3,692,489 00 Totals — - - - - 36,838.024 $4,604,753 OO Crushed rock. Under this general heading are included macadam, rubble, trap rock, riprap, sand and gravel. When producers in their answers to inquiries have stated the use to which their rock was put the classification has STATISTICS STATE MINING BUREAU. ir been made accordingly. In a large number of cases, however, it is absolutely impossible for the producer himself to know how much of his output has been used in street work, how much in concrete con- struction, etc., and a tabulation of ** Crushed Rock— Unclassified" has been made to cover such instances. The total crushed rock figures here given are comparable with the sum of the macadam and rubble figures as found in previous bureau publications. During 1911 crushed rock was produced in California to the amount of 6,487,223 tons, having a value at the quarry of $3,610,357. This is a marked increase over the 1910 output, which totaled 5,827,828 tons valued at $2,777,690. Values of this class of material are- far from uniform. Accessibility of the deposit, quality of the rock, labor con- ditions, etc., make each local case a separate and distinct one. Thirty-three counties reported production of crushed rock in 1911. Without doubt the actual output is in excess of the figures given owing to the nature of the industry, and producers who have not received inquiries from the State Mining Bureau will do the State and their county a service if they will forward their names and addresses to the Statistician, California State Mining Bureau, Ferry Building, San Francisco, Cal. Crushed rock is used for so many purposes that it is very difficult to properly segregate the amounts produced into the proper places. Among the uses of crushed rock are concrete for buildings, for walls, sidewalks and in machinery foundations. Also for macadamizing streets and for other uses. The larger rocks, used for filling embank- ments, building breakwaters and for similar uses are not included in crushed rock. Following are given county figures for the various branches of the crushed rock industry as far as possible, as well as total figures covering the industry as a whole : Macadam. County. Amount, tons. Value. Alameda 180.413 111,194 27.160 110.000 1.300 90 500 24,867 15.856 106.792 12.700 1.800 837 5,543 116.000 $135,148 00 Contra Costa 68,732 CO Humboldt __ __ 27,444 00 I.os Angeles _ _ 77,500 00 Madera __ _ _ 800 00 Merced , 54 00 Monterey 500 00 Napa 21,556 00 Sacramento 7.946 00 San Francisco _ 98,547 00 San Mateo 9,500 00 Santa Barbara _ Santa Clara 1.800 00 558 00 Santa Cruz _ _ 5.543 00 Solano 92,800 00 Totals 715.052 $548,428 00 a— mb64 IS MINERAL INDUSTRY OE CALIFORNIA. Rubble. County. Amount, tons. Alameda Oolusa Contra Costa _ Humboldt Inyo Kern Los Angeles _— Marin Napa Orange Placer Riverside _ Sacramento — San Bernardino San Diego Santa Barbara Santa Cruz ___ Sonoma Totals 175,185 I $93,182 00 66,035 16,502 00 70,000 55,000 00 50 125 00 46,450 32,555 00 143,500 99,330 00 174,625 132,006 00 145,421 90,161 00 1,581 1,505 00 50 100 00 8,584 1,753 00 13,525 7,038 00 14,264 2,202 00 120,696 142,821 00 2,479 2,740 00 1.038 , 4,102 00 2,084 1 2,084 00 110 55 00 985,677 $683,261 00 Unclassified. Alameda 67,985 95,185 180,864 7,284 340,277 441,826 28,225 102,990 82,012 490,221 206,776 250,322 18,330 110,917 28,000 53,668 300 28,540 43,049 17,073 1,000 $53,892 00 Butte 61,870 00 Contra Costa 107,145 00 El Dorado - _ - 5,465 00 Fresno . 240,198 00 X/OS Angeles 292453 00 Marin 18,625 00 Merced 46,794 00 Napa - -- 42,972 00 Riverside - - - - - 444,827 00 Sacramento - 107,523 00 San Benito - - - --. 1 107,558 00 San Bernardino - __ _ 19,923 00 San Diego 129,874 00 San Francisco _ 16,479 00 San Mateo - - 51,525 00 Santa Barbara 450 00 Santa Clara - 18,849 00 Solano 34,789 00 Sonoma > 13,294 00 Ventura 750 00 Totals - - - 2,594,844 $1,814,955 00 Trap and Riprap. Alameda .. Merced San Diego Totals . 104,277 i 3,670 377 I $58,708 00 2,700 00 471 00 108,324 $61,879 00 Paving blocks are mostly made from either granite or andesite, the latter known by the trade term ** basalt blocks," are not included in any of the above, but will be found under a separate head. Large quantities of earth, gravel, and rock are annually moved by the railroads from their own quarries and in grading, which are used in filling embankments. Little of this output is included in the output of broken rock. STATISTICS STATE MINING BUREAU. 19 Sand and Gravel. County. Alameda — Butte Colusa Contra Costa _ Fresno Glenn Humboldt Kern Los Angeles _— Monterey Napa Orange Placer Riverside Sacramento ___ San Bernardino San Diego San Francisco San Mateo Santa Barbara Santa Clara ___ Siskiyou Sonoma Yuba Totals 424.945 $63,685 00 136,153 ; 16.338 00 1,333 200 00 93,756 1 26,626 00 99,426 40,713 00 421,775 51,430 00 7,533 10,187 00 87,450 8,550 00 151,971 i 35,217 00 34,617 26,511 00 130,272 1 61,395 00 7,510 ' 755 00 15,884 ; 6.177 00 7,142 1,859 00 133,660 13.366 00 15,815 4,064 00 77,231 ! 62,750 00 10,258 i 4.610 00 200 i 160 00 600 250 00 87,498 ! 43,188 00 52,633 ! 6,580 00 38,109 1 7.905 00 47,555 1 9.318 00 2,083,326 i $501,834 00 Total Figures. These figures are comparable with the sum of the macadam and rubble output as published in past years.) County. Amount, tons. Value. Alameda _ _ _ 952,805 231,338 67,368 455,814 7.284 439.703 421.775 34,743 46,450 230,950 878,422 1,300 173,646 106,750 35,117 238,732 7.560 24,468 510,888 370,556 250,322 154,841 191,004 145,050 66,568 3,738 116,875 7,627 52,633 159,049 55,292 1,000 47,555 $404,615 00 P.utte 78,208 00 Colusa __ 16,702 00 (\)ntra Costa 257,503 00 K] Dorado I'resno _ _ _ 5,465 00 280,911 00 cienn :_ 51,430 00 Humboldt 37,756 00 Inyo 32,555 00 Kern _ ___ ______ 107,880 00 Los Angeles 536,876 00 Madera 800 00 Marin 108,786 00 Merced _ _ _ 49,548 00 -Monterey _ _ 27,011 00 Xapa 127,428 00 lange ___ 855 00 lacer __ 7,930 00 u'iverside __ _ 453,724 00 Sacramento _ __ _ 131,037 00 San Benito 107,558 00 ^an Bernardino -an Diego >an Francisco San Mateo Santa Barbara Santa Clara Santa Cruz 166,808 00 195.835 00 119.636 00 61.185 00 6,602 00 62,595 00 7.627 00 Siskiyou 6,580 00 Solano 127,589 00 Sonoma _____ 21.252 00 Ventura _ 750 00 Yuba _ _ 9,318 00 Totals 6,487,223 13.610.357 00 20 MINEKAL INDUSTRY OF CALIFORNIA. Feldspar. The feldspars occur as constituents of nearly all rocks. The feldspar of commerce, however, is all obtained from pegmatites, where the crys- tals 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 wares. 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 produced commercially in California in 1910. During 1911, 740 tons were quarried and sold, the crude material at the property having a value of $4,560, or an average of a little more than $6 per ton. Fuller's earth. 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 tex- ture and its filtering and absorbent properties. It has no definite com- position, mineralogically, its physical properties rather than a chemical 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. During 1911 the output amounted to 466 tons valued at $5,294, an average spot value of $11.36 per ton. Reference: Bull. 38, p. 273. Gems. The following named gems are among those commonly produced in California: Agate, amazonstone, almandine, beach stones of many kinds, benitoite, bloodstone, chalcedony, californite, chrysoprase, datolite, dia- mond, fossil coral, garnet, hyacinth, hiddenite, jasper, kunzite, moon- stone, rose, smoky and gold quartz, rhodolite, rhodonite, rock crystal, spodumene, sunstone, topaz, tourmaline, turquoise, turquoise-matrix, and many other stones with trade names. The following counties reported production of one or more of the above : Butte, Fresno, Inyo, Los Angeles, Riverside, San Diego, Siskiyou, and Tulare. New deposits of gems are continually being discovered. The value of the stones in the rough is extremely problematical, and the demand is more unsteady than for the "precious" stones, hence spot values of the crude material are difficult to arrive at. The figures here given are the result of (1) correspondence with producers, and (2) obtaining esti- mates from dealers and others who are actively engaged in the business, | and the result is the closest approximation that can be deduced. There STATISTICS STATE MINING BUREAU. 21 was an overproduction of gems in 1910 and as a result the 1911 output is somewhat below normal. A large number of beach stones of every description were utilized as gems in Los Angeles County during the year. This branch of the indus- try did not show a decrease, the local demand in Los Angeles City and the surrounding beach towns being quite strong. Small diamonds of good quality continue to be occasionally found in Butte County, and development work along these lines is to be vigor- ously pushed in the near future, according to parties interested. Rhodonite and californite exist in considerable amount in Fresno County although the output was very small during the past year. Several discoveries were made in Inyo County in 1911. The actual output was almost nothing but the outlook is for an increase in this branch of the mineral industry in the near future as the stones are of the highest quality. Gem mines of as yet undetermined value are located in San Benito County, and various deposits in Riverside County are likely to become large producers with further development. San Bernardino produced no gems during the year 1911 although two especially well equipped anpanies are doing preliminary work and expect to place their output on the market before the end of 1912. San Diego County contains more gem deposits, developed and unde- A eloped, than any other section of the State. Its annual output has ])een estimated to be as high as $100,000. The value of the cut stones would doubtless reach that figure, although an investigation of condi- tions there has proved that the overproduction of 1910 is still affecting the industry — almost a year and a half later — both as concerns produc- tion and price, and one quarter of the above figure represents a fair average estimate of the value of the crude gem material mined in the county during 1911. In Siskiyou and Tulare counties the same general conditions prevail, and at present there is no doubt but that demand and prices offered are not keeping pace with possible production. Following is a summary of the gem industry for 1911 tabulated by counties : County. Value. Butte $150 00 Fresno 250 00 Invo 174 00 Los Angeles 5,000 00 Riverside 250 00 San Diego 25.000 00 Siskiyou 1,000 00 Tulare 20,000 00 Total $51,824 00 22 MINERAL INDUSTRY OF CALIIORNIA. Gold. The following tabulation shows gold production in California, by county, as compiled by the U. S. Geological Survey. For complete information see Mineral Resources for 1911, U. S. G. S. : County. Value. Amador _ $2,832,395 00 Butte - 2,323,396 GO Calaveras 1,112,315 00 Colusa ^2,837 00 Del Norte __ _ __ „_ _ ^- _ 1,743 00 El Dorado 133,967 00 Fresno 17,441 00 Humboldt _ 34,966 00 Imperial ___ 297,855 00 Inyo 574,945 00 Kern 557,471 00 Madera _ _ _ _ _ 1,958 00 Mariposa 172,532 00 Modoc _ 19,875 00 Mono _ _ . _ _ _ _ _ _ _ _ _ 261,232 00 Nevada 2,199,147 00 Placer ______ _ _ _ 251,298 00 Plumas - _ _ 228,785 00 Riverside ^20.623 00 Sacramento 1,812.826 00 San Bernardino 127,367 00 Shasta _ _ _ *1,059,881 00 Sierra _ 461.513 00 Siskiyou 422.297 00 Stanislaus _ _ _ ^'307,538 00 Trinity "612,149 00 Tuolumne 1,093,484 00 Yuba - - _ _- 2,997,072 00 Total _ - — $19,738,908 00 1 Includes Lassen County production. zincludes San Diego County production. ^Includes Los Angeles County production. ♦Dredge production included in Stanislaus total. ^Includes Merced County production as well as dredge production from Shasta and Trinity. SDredge production included In Stanislaus total. Granite. Granite, used as a building stone as well as for monumental and other purposes, was produced in California during 1911 to the amount of 401,209 cubic feet and value of $344,351, crude stone at the property. Stone used for curbing is hereby listed separately, the total value, including curbing, being $355,742. California granite has no superior in the world. The past few years has seen some of the most beautiful and classical buildings in the work] constructed in this State from California granite. Among these are several banking buildings and the Postoffice and Customs House in San Francisco, also several very beautiful buildings on the campus of the University of California. This granite is obtained from quarries in a number of counties, among which there seems little choice, as to superiority. STATISTICS STATE MINING BUREAU. ^ The following table shows the summary of this branch of the Mineral Industry in California for 1911, as reported by the various producing I counties : Granite. I County. Amount, cu, ft Value. Fresno . 37,500 14,000 99,900 1,250 190,634 12,295 45,630 $38,000 00 Los Angeles - 16,200 00 Madera 74,190 00 Nevada 3,500 00 Placer 199,599 00 Riverside 10,555 00 Sacramento ^2.307 00 Totals 401,209 $344,351 00 ^ iLow value due to prison labor. Curbing. Placer 47,395 ' Lin. ft. 3,000 3,700 $9,202 00 Kiverside Sonoma _ _ _ _ 1,800 00 389 00 Totals 54,095 $11,391 00 Graphite. No natural graphite was produced in California during 1911 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 1912. Graphite deposits have been discovered, and exploited to some extent, in the following counties: Fresno, Los Angeles. ]\rendocino, 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. u MINERAL INDUSTRY OF CALIFORNIA. Gypsum. Gypsum occurs in Butte, Colusa, Fresno, Kern, Kings, Los Angeles, Monterey, Orange, Riverside, San Benito, San Bernardino, San Luis Obispo, Santa Barbara, Tulare, and Ventura counties. Production for 1911 was reported from only four counties, as follows : County. Amount tons. Value. Kern .^ 853 20 10,000 20,584 $4,245 00 Kings 100 00 Monterey San Bernardino 30,625 00 66 505 00 Totals 31,457 101,475 00 This shows a decrease from 1910 when the production amounted to 45,294 tons valued at $129,152. Among the uses of gypsum are: plaster of paris, as a wall plaster, as a fertilizer, and in the paper and glass industries. Reference: Bull. 38, California State Mining Bureau, p. 281. Infusorial earth. 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 1911 amounted to 2,194 tons valued at $19,670 as compared with 1,843 tons valued at $17,617 quarried and sold during the previous year. Only two counties contributed to the total: County. Amount, tons. Value. Monterey 850 •1.344 $5,950 00 Santa Barbara __ 13,720 00 Totals _._ 2.194 $19,670 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 heat, is utilized in the manufacture of refractory brick, as a polishing powder, in scouring soaps, etc. Reference : Bull. 38, p. 289, California State Mining Bureau. . i Iron ore. Iron deposits of great extent are known to exist in thirty-one different counties of the State. For various economic reasons the iron industry has made little progress to date. The future possibilities along these lines are very great. Actual production of iron ore in 1911 amounted to 558 tons valued at $558, compared with 570 tons in 1910, valued at $900. STATISTICS STATE MINING BUREAU. 25 Lead. Niue counties in California reported lead production for the year 1911 to the amount of 1,403,839 pounds valued at $63,173, this being a decrease of 1,612,161 pounds in amount and $70,909 in value as com- pared with the previous year when the output was 3,016,000 pounds \alued at $134,082. Tabulated county returns are as follows: County. Amount, pounds. Value. Calaveras 220 3,701 1,182.122 2.417 37.000 14,831 1,329 161.338 881 $10 00 El Dorado Inyo 167 00 ' 53.195 00 Kern _- 109 00 Mono 1.665 00 Nevada _. 667 00 Plumas 60 00 San Bernardino __. Shasta _„ 7,260 00 40 00 Totals 1,403,839 $63,173 00 Lime and limestone. Fourteen counties in the State reported a production of lime or limestone, or both, for the year 1911. Several kilns were closed, during the year, for one reason or another. The average price of lime per barrel was seven per cent lower than during the previous year. Lime- stone production also decreased in amount and value, owing in part to the curtailment of the copper industry and the consequent lessened demand for limestone as flux. A considerable tonnage of limestone was used in road building during the year, and has been classified as macadam. This fact makes a possible apparent decrease. The total lime production was 429,587 barrels, valued at $390,988 as compared with an output of 479,507 barrels valued at $477,683 in 1910. Limestone to the amount of 516,398 tons was quarried and used as such, and had a spot value of $452,790 as compared with 684,635 tons valued at $581,208 for the previous year. Lime and limestone production, by counties, is shown below: Lime. County. Amount, barrels. ^mador Contra Costa -El Dorado ___ Kern Santa Cruz ._ Shasta ;_Siskiyou I' Tuolumne Totals — 1,200 $1.500 00 11.872 8.645 00 15,086 12.309 00 96,500 82,025 00 216,508 206,225 00 13,271 10,164 00 150 120 00 75.000 70.000 00 429,587 $390,988 00 ^ ^1 26 MINERAL INDUSTRY OF CALIFORNIA. Limestone. County. Amount, tons. Value. Calaveras Contra Costa 3,943 68,708 1.000 600 2,000 245,102 93,500 4,239 2,417 22,622 67,924 24 4,319 $11,733 00 46,208 00 EI Dorado Kern __ 1,000 00 400 00 Monterey San Bernardino San Mateo Santa Barbara 6,000 00 177,080 00 74,800 00 8 174 00 Santa Clara Santa Cruz Shasta _ _ __ 3.918 00 44.591 00 65,253 00 Siskiyou 24 00 Tuolumne 13,609 00 Totals 516,398 $452,790 00 Magnesite. Occurrences of magnesite are known in Alameda, Fresno, Mendocino, Napa, Placer, San Benito, Santa Clara, Riverside, Stanislaus, Sonoma, Tulare, and other counties in California. Magnesite is used in the manufacture of paper, in making refractory- brick and what is known as magnesite flooring, and in the manufacture of carbon dioxide, principally. California is the only State in the Union that produces this mineral. Production for 1911 by counties is as follows : County. Amount, tons. Value. Fresno 220 300 575 7,763 $2,195 00 Placer 3,300 00 Riverside _ _ _ 4,600 00 JTulare 57,335 00 Totals 8,858 $67,430 00 — d Manganese. Manganese is found in the following counties of this State: Alameda. Colusa, Merced, Placer, Plumas, Riverside, San Benito, San Joariuiii. San Luis Obispo, Santa Clara, and Sonoma. Production has been reported in the State almost continuously for the past twenty-five years amounting to 9,254 tons valued at $87,910 for the quarter century. The great bulk of this output is credited to the first half of that period. Since 1903 the production has been nominal. In 1911 two tons with a spot value of $40 represent the average for several years. Marble. Only three counties reported a production of marble during 1911 although large deposits of the finest marble exist very extensively throughout the State, and will most certainly in time take the place of the eastern and foreign stone, which is annually used for building and ornamental purposes. STATISTICS STATE MINING BUREAU. 27 i Production for 1911 amounted to 20,201 cubic feet, valued at $54,103 as compared with 18,960 cubic feet worth $50,200 in 1910. Output by counties : County. Amount, cu. ft. Value. Los Angeles _ _ 1,100 135 18,966 $3,300 00 San Bernardino 405 00 Tuolumne 50,398 00 Totals 20.201 $54,103 OO Mineral paint. Butte, Calaveras, Los Angeles, Napa, Nevada, Placer, Riverside, Siski- you, Sonoma, Stanislaus, Trinity, and Yuba counties contain extensive deposits of mineral paint. The first production of this material reported in California was in 1890. Since that date there has been an annual I output of from 100 to 600 tons roughly. i For 1911 a total of 186 tons valued at $1,184 was produced in Placer and Stanislaus counties, very nearly an equal amount in each. Mineral water. California is rich in her possession of mineral springs of every kind. Figures published in this report are for mineral water actually bottled and sold. Millions of gallons are otherwise utilized, or annually run to waste, of which no reliable data can be compiled. There is a great variance in prices obtained because of the great difference in the con- stituent ingredients of the several waters, and in the consequent demand for same. Returns from the producers show the amount of mineral water mar- keted in 1911 to have been 2,637,669 gallons, valued at $590,654, as com- pared with 2,335,259 gallons worth $522,009 in 1910, an increase of 302,410 gallons, in amount, and $68,645 in value. Production tabulated by county is as follows : County. Amount, gallons. Value. Calaveras Colusa Contra Costa __. Lake Los Angeles Marin Napa Riverside San Benito San Diego San Luis Obispo. Santa B&rbara _. Santa Clara Shasta Siskiyou Solano Sonoma Tehama Totals 10,000 $5.000 00 136,300 68,150 00 206,500 10.325 00 227,440 58,933 00 229,019 17,256 00 328,740 36,500 00 141,540 86,530 OO 90,580 11,500 00 3,600 1,540 00 60,090 87,020 00 2,000 1,000 00 73,640 15,900 00 165.720 10.000 00 25.000 6,250 00 700,000 120000 00 30.000 4.000 OO 202,500 50250 00 5.000 500 00 . 2,637.669 $590,654 00 28 MINERAL INDUSTRY OF CALIFORNIA. Natural gas. As in the case of mineral water, untold quantities of natural gas are annually wasted. Definite figures as to amount actually utilized are difficult to arrive at as in many cases the owners of gas wells make no attempt to measure the output, and even the value of the product which is used becomes a matter of estimate. This does not hold in all cases, but it is true to such an extent as to make an estimate of amount valueless. Active steps are now being taken to conserve the vast supply of natural gas in the State and the near future will show an enormous increase in value of this branch of the mineral industry. Natural gas, used for fuel in the oil fields, for lighting and for all other purposes in California during 1911 had a value of $491,859 as com- pared with the 1910 consumption worth $476,697 (the latter figure taken from "Mineral Resources of the United States" 1910, Part II, page 323, U. S. Geological Survey). The total for 1911 by counties is as follows : County. Value. Humboldt Kern Kings Lros Angeles $150 00 165,438 00 800 00 15,208 00 Sacramento I 83,890 00 San Joaquin ! 114.433 00 Santa Barbara i 100,386 00 Solano _- Ventura . Total 8.596 00 2,958 00 $491,859 00 Onyx and travertine. Onyx and travertine marble were produced in California to the value of $91,400 between the years 1887 and 1896. During the past fifteen 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 are imported from Mexico. Paving blocks. Six counties reported production of paving blocks for 1911 to the amount of 4,141 M ; spot value, $210,819. This is a slight decrease in amount and.an increase in value over the 1910 production, which equaled 4,434 M in number with a value of $198,916. Paving blocks are mostly made from granite or andesite, the latter variety being known to the trade as ' * basalt blocks. ' ' Solano and Sonoma are the largest producers of this class of blocks. STATISTICS STATE MINING BUREAU. 29 The following tabulation shows the output by counties as reported to the State Mining Bureau : County. Amount. M. Value. Placer _ _ 1 __i 60 $2,220 00 Riverside 126 7.939 00 San Bernardino — San Diego ! 305 ._ 109 19.930 00 5,653 00 Solano 263 12,685 00 Sonoma 3,278 162,392 00 Totals 1 4,141 $210,819 00 1 Petroleum. The State Mining Bureau has in press a bulletin, No. 63, which deals largely with the petroleum industry in the fields south of Tehachapi. County production during 1911 is as follows : Cbimty. Amount, barrels. Value. Fresno 18,249,611 1,250,000 43,569,225 2.993,600 4,549,288 375,000 5,927,275 418.000 38,092 6,335,156 431,000 12,828 466,682 32,400 $8,744,085 00 Kern ^600.000 00 18,920.658 00 Los Angeles n,287,248 00 3,062,722 00 Orange ^251. 250 00 3,830,460 00 San Luis Obispo _ _ ^267,520 00 25,146 00 Santa Barbara Santa Clara 3,002,147 00 ^202.570 00 8.505 00 Ventura 327,097 00 ^22,680 00 Totals 84,648,157 $40,552,088 00 lUsed as fuel In the field. Value figured at the average price obtained in the county during the year. Platinum. Platinum production in California during the year 1911 amounted to 511 Troy ounces, valued at $14,873, as compared to 337 ounces worth $8,386 in 1910. Platinum yield in the State is largely due to its inci- dental recovery along with placer gold in various dredging and hydraulic fields. Pyrite. Pyrite production in California for 1911 amounted to 54,225 tons,, valued at $182,954, as compared with 42,621 tons worth $179,862 during^ 1910. These figures include only pyrite actually used in the manufac- ture of sulphuric acid. Many thousand tons of pyritic ores are annually treated in the State in which the sulphur content is not utilized, the fumes passing out into the air. Strenuous efforts are being made, how- ever, to render these noxious fumes harmless to the vegetation of the surrounding regions. 30 MINERAL INDUSTRY OF CALIFORNIA. Output by counties is as follows: y-^ County. Amount, ton». Value. '[^aineda __ 6,340 47,885 $31,352 00 'Shasta 151,602 00 Totals - 54,225 $182,954 on Quicksilver. Contrary to predictions generally made at the end of the year the quicksilver output for 1911 showed a considerable increase over that ol' 1910. The production for 1911 was 19,109 flasks valued at $879,205, in flasks of 75 pounds at $46.01 per flask, which was the average price received in the San Francisco market during the year. This is an increase in quantity of 1,444 flasks, and in value, of $80,203 over the production of 1910. The largest output came from San Benito County, followed by Sant;i Clara, Lake, San Luis Obispo, Napa, Sonoma, Santa Barbara, Trinity, and Colusa counties in the order named. The following counties also contain quicksilver deposits, some of which promise to become producers at an early date : Kings, Monterey. El Dorado, Fresno, Shasta, Solano, Stanislaus, and Yolo. Unusual activity has been apparent among operators and owners of quicksilver mines during 1911 and the outlook for a further increase in the futuiv is favorable. The 1911 quicksilver production has not been exceeded since 190r> w^hen the product was sold for $886,081. The value for succeeding years is as follows: Year. Value. 1906 — — $712,334 (H) 1907 663.178 (in 1908 763.520 00 1909 1910 1911 773,788 00 799,002 Ofi 879.205 en One of the most important factors in the increased output of quick silver is the advance in the price of the metal. The lowering of tli* cost of production has also made it possible to profitably treat a decreas ingly lower grade of ore, so that now, a quicksilver property with good-sized vein of ore containing only one half of one per cent ol mercury will pay expenses, and under the most favorable circumstanci^ may yeild a profit. Quicksilver is produced in Texas and also is known to occur in several other Western States, but California is the greatest producer in America. Notwithstanding this, the mines of Europe control the market and fix the price. STATISTICS STATE MINING BUREAU. 31 Quicksilver production for the year, tabulated by counties is as follows : County. Colusa Lake Napa San Benito San Luis Obispo Santa Barbara Santa Clara Sonoma Trinity Totals Amount, flasks. 5 $230 00 899 41,363 00 140 6,441 00 9,775 449,748 00 569 26,180 00 50 2,301 00 7,533 346,593 00 94 4,325 00 44 2.024 00 19,109 ^879,205 00 Salt. The California salt output comes from two sources ; from 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; and in the second case from the old lake beds in the desert portions of the State, where many thousand acres of saline deposits exist. South of Danby, in San Bernardino County, is a large bed of rock salt that has been mined quite extensively at various periods for many years past. During 1911 six counties reported a production of 173,332 tons of crude salt valued at $324,255, or an average of $1.87 a ton, spot value. As compared with the 1910 figures, when 174,920 tons were produced, worth $395,417, the output is seen to be practically unchanged although the price received suffered a decrease of $.41 per ton. Output Tabulated by Counties. County. Amount, tons. -Alameda Los Angeles ^an Bernardino •San Diego San Mateo Solano Totals 121,540 i $201,542 00 7,592 i 16,113 00 3,600 i 13,800 00 13,000 ! 37,500 00 27.500 55,000 00 100 300 00 173,332 ! $324,255 00 Sand — Glass. Both glass sand and quartz sand are produced in small quantities in California, possible production being far greater than any yet actually attained. During 1911 no output of "Quartz Sand" was reported, glass sand, however, being produced to the amount of 8,620 tons, valued at $8,672 — amount and value being practically the same as for the pre- cedinsr vear. %\- 32 MINEKAL INDUSTRY OF CALIFORNIA. Sandstone. Sandstone quarries are located in twenty-two counties of the State, Production for 1911 was reported from only five of these counties, how- ever. The year's production amounted to 255,313 cubic feet, having a value of $127,314 at the quarry. In 1910 only 165,971 cubic feet were quarried, valued at $80,443. The following table shows the output by counties : County. Amount, cu. ft. Value. Amador 90.000 101,029 58.976 650 4,658 $45,000 00 Colusa 50 027 00 Santa Barbara ___ Siskiyou 29,507 00 455 00 Ventura 2,325 00 Totals 255,313 $127,314 00 Silver. The following table shows silver production in California for 1911 by counties, as tabulated by the U. S. Geological Survey. For complete information see Mineral Resources for 1911, U. S. G. S. The average price received for silver for the year was 53 cents per ounce : County. Value. Amador __.. ^......^ ^. . ... ^„ ^^ $28,899 GO Butte - - -- — 5,102 00 Calaveras 67,032 00 Colusa ^281 00 Del ^orte _ . _ 7 00 El Dorado _ 1,010 00 Fresno - - 81 00 Humboldt 169 00 Imperial _ _ _ 2189 00 Inyo _ - 45.678 00 Kern 5,833 00 Madera 77 00 Mariposa _ _ _ _ 1.390 00 Modoc - _ - _ 363 00 Mono 35,508 00 Nevada 15.691 00 Placer - _ 2.585 00 Plumas 1.125 00 Riverside _ «2,121 00 Sacramento - 3.047 00 San Bernardino . 35.542 00 Shasta _ *386.991 00 Sierra _ _ - - 5.604 00 Siskiyou 2.561 00 Stanislaus — — "■•1.131 00 Trinity __ : "6.777 00 Tuolumne 13.243 00 Yuba _ - - 5,299 00 Total $673,336 00 ^Includes Lasnen County production. Includes San Diego County production. 'Includes Los Angeles County production. ^Dredge production Included in Stanislaus total. •Includes Merced County production as well as dredge production from Shasta and Trinity counties. •Dredge production included in Stanislaus total. STATISTICS STATE MINING BUREAU. 33 Soda. Deposits of soda are located in various parts of southern California, more especially in Inyo, San Bernardino, and San Luis Obispo counties. The 1911 production amounted to 9,023 tons, valued at $52,887, as com- pared with an output of 8,125 tons worth $11,862 in 1910. Tungsten. The value of tungsten produced in California in 1911 amounted to $127,706 as compared to $208,245 in 1910. Tungsten is used largely in the steel industry. The ores are sold per unit of tungstic trioxide, ores of a lower grade than 45 per cent WO3 are not generally marketable. Zinc. A small quantity of zinc was produced in the State during the years 1906, 1907, 1908 having a total value of $26,708. With that exception 1911 shows the first returns from what bids fair to become a large indus- try. Deposits of zinc ore exist in Inyo, Orange, San Bernardino, and Shasta counties. Zinc occurs to some extent in the ores of many other counties although as yet they have not come to be considered zinc ore. The output for 1911 was 2,679,842 pounds, valued at $152,751. In addition to the foregoing minerals eight others have been produced in the State at different times, any and all of which may become a factor in the mineral output of California, to wit: Lithia mica, mica, quartz crystals, serpentine, slate, soapstone, sulphur and tin. From 1899 to 1905 lithia mica was produced to the total value of $127,556, the output coming almost entirely from San Diego County. The mineral was used as a source of lithia, which in the form of the car- bonate is used in the manufacture of effervescing lithia tablets, and in the preparation of mineral waters, and in the form of the nitrate in the making of the "red fire" of pyrotechnics. In 1902, 1903, and 1904 mica production to the total amount of 150 tons valued at $9,300 was reported to the State Mining Bureau. At various times during the past fifteen years small amounts of quartz crystals have been marketed in the State. The total value recorded being $57,468. No commercial production has been reported during the past three years. 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 production in California had its beginning in 1889 and has been continuous, in greater or less amount, up to 1911, when no production 34 MINEKAL INDUSTRY OF CALIFORNIA. was reported. The output has been rapidly declining in 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 * ' Eeady Roofing ' ' which have been placed on the market in recent years have hurt the industry seriously. Soapstone deposits of great extent are located in various parts of the State although none of them have been developed to any extent. The first reported production was in 1893. Intermittently since that time up to and including the year 1910, soapstone to the value of $41,559 has been placed on the market. During 1911 no output was reported to this Bureau. In several localities it is possible to distill sulphur from the rocks which are found in limited areas. In the northern portion of the State are also known springs which deposit sulphur from solution. In 1898 a production of two tons of sulphur, valued at $50, was reported. No other output of sulphur has been recorded to date. In the vicinity of Lassen Peaks are several fumeroles where sulphur is being constantly deposited from vents. One of these is known as Supan's Springs, and is situated about five miles north of Morgan station; another is called Hot Spring Valley, and is on a tributary of Warner Creek. Here are scores of vents where sulphur is being deposited. A third locality is called Bumpass' Hell. This latter is close to the base of the main peak on its southern side. In each of these localities sulphur occurs, but in each instance it is mixed with much earthy matter which reduces its value materially. It is not likely that any of these deposits have a present value owing to the lack of cheap transportation facilities. 1 Tin was produced in California in 1891 and 1892 to the value of $59,964. No other production is known in the history of the State. The deposits of tin ore are in Riverside County, seven miles east of Corona. It may not be generally known, but petroleum was produced in a small way in California very early in the history of the country, in fact, long before it was invaded by the army of gold seekers. Mr. C. ]\rorrell, a druggist in San Francisco, is commonly credited with being the first to attempt the distillation of kerosene from crude petroleum. This was in 1857, but several years prior to that Andreas Pico made illuminating oil from petroleum which he obtained in the Newhall region in Los Angeles County. This oil was burned, so it is said, in lamps in the Mission San Fernando. There is no doubt whatever that the Spanish padres who built the missions in California in the latter part of the eighteenth century, were aware of the existence of petroleum here and made use of the brea, as the seepages are called. STATISTICS STATE MINING BUREAU. OUTPUr BY COUNTIES. ALAMEDA COUNTY. Mineral. Quantity. Brick Chrome Clay ■__. Crushed roek^ Pyrite — Salt 19,660 M 60 tons 10,500 tons 952,805 tons 6,340 tons 121,540 tons Value. Total $153,330 00 500 00 8,300 00 404,615 00 31,352 00 201,542 00 $799,639 00 ■Includes macadam, rubble, trap, riprap, sand ami gravel. AMADOR COUNTY. Mineral, Quantity. Value. Brick 2,000 M 43,352 tons 227,848 lbs. j $20,000 00 Clay ._ _ _ 37,395 00 Copper Gold - - 28,481 00 2,832,395 00 Lime 1,200 bbfs. 90,000 cu. ft. 1 1,500 00 Sandstone •_ Silver 45,000 00 28,899 00 Total ___ $2 993 670 00 BUTTE COUNTY. Mineral. Quantity. Value. Crushed rock^ 231,338 tons $78,208 00 Gems - _ - 150 00 Gold 2,323,396 00 Silver ^ 5,102 00 Total $2,406,866 00 >'and and gravel. CALAVERAS COUNTY. Mineral. Quantity. Value. Clav 50 tons 6,190,153 lbs. $200 00 Copper Gold - _ 773,769 00 1,112,315 00 Lead 220 lbs. 3,943 tons 10,000 gals. 10 00 Limestone Mineral water ___ Silver 11.733 00 5.000 00 67,032 00 Total $1,970,059 00 36 MINERAL INDUSTEY OF CALIFORNIA. COLUSA COUNTY. Mineral. Quantity. Crushed rock^ 67,368 tons GoW Mineral water 136,300 gals. Quicksilver 5 flasks Sandstone 101,029 cu. f t. Silver^ Total I 1 Rubble, sand, gravel. 2Includlng Lassen County production. CONTRA COSTA COUNTY. $16,702 OC 2,837 OC 68,150 OC 230 OC 50,027 OC 281 OC $138,227 OC Quantity. Brick ; 36,463 M $271,575 00 Crushed rock^ ' 455,814 tons 257,503 GO Lime 11,872 bbls. 8,645 00 Limestone _. 68,708 tons 46,208 00 Mineral water 206,500 gals. 10,325 00 Total - L $594,256 00 iMacadam, rubble, sand and gravel. DEL NORTE COUNTY. Mineral. Value. Gold - $1,743 00 Silver 7 00 Total $1,750 00 EL DORADO COUNTY. Mineral. Quantity. Value. Crushed rock 7,284 tons $5,465 00 133,967 00 167 00 12,309 00 1,000 00 1,010 00 $153,918 00 Gold Lead 3,701 lbs. 15,086 bbls. 1,000 tons Lime Limestone Sliver Total i 1" Total STATISTICS STATE MINING BUREAU. FRESNO COUNTY. lUneral. Wck 4,500 M •ushed rock^ : 439,703 tons 3ms — Jold - Jranite 37,500 cu.ft. lagnesite - — i 220 tons troleum^ 19,499,611 bbls. iver 37 Value. $28,500 00 280,911 00 250 00 17,441 00 38,000 00 2,195 00 9.344,085 00 81 00 $9,711,463 00 iMacadam, rubble, sand and gravel. Hncludes 1,250.000 barrels valued at $600,000, used as fuel In the field. GLENN COUNTY. I Mineral. Quantity A7alue. *^mshed rock (sand and gravel). Total 421,775 tons $51,430 00 $51,430 00 HUMBOLDT COUNTY. MlneraL Quantity. Value. Brick ' Clay f , Crushed rock r Gold Natural gas Silver Total 357 M 937 tons 34,743 tons- $2,880 00 937 00 37,756 00 34,966 00 150 00 169 00 $76,858 00 IMPERIAL COUNTY. MlneraL Quantity. Value. Brick _ Gold^ . Silver^ Total 1,200 M $7,000 00 97,855 00 189 00 $105,044 00 Includes San Diego County production. INYO COUNTY. Mineral. Crushed rock Copper Gems __.. Gold Quantity. 46,450 tons 27,889 lbs. Lead III-IIIIIII"""! "Ti82"i22"lbs' Silver __. Total $32,555 00 3,486 00 174 00 574.945 00 53.195 00 45.678 00 $710,033 00 38 MINERAL INDUSTRY OF CALIFORNIA. KERN COUNTY. Mineral Quantity. Brick Clay Copper Crushed rock^ 5,603 M 242 tons 29,441 lbs. 230,950 tons Gypsum 853 tons Lead 1 2,417 lbs. liime - - i 96 500 bbls Limestone i 600 tons Natural gas _ _ _ _ Petroleum^ _ _ 4fi.t^fi989.f^ bbls Silver Total _ _ $41,426 00 121 00 3,680 00 107,880 00 557.471 00 4,245 00 109 00 82,025 00 400 00 165.438 00 20,207,906 00 5,833 00 $21,176,534 00 'Macadam, rubble, sand and gravel. 2Includes 2.993,600 barrels, valued at $1,287,248, used as fuel in field. KINGS COUNTY. Mineral. Quantity. Value. Gypsum ! 20 tons i Natural gas | i 1 :- Total $100 00 800 00 $900 00 LAKE COUNTY Mineral. QuanUty. Value. Mineral water _„ 227,440 gals. 899 flasks $58,93;; ..u Quicksilver 41.363 UO Total $100,296 m LASSEN COUNTY. Gold and silver the only mineral production reported by Lassen County l^r 1911. Value included with Colusa County total by the U. S. Geological Sur\ t \ . LOS ANGELES COUNTY. Mineral. Quantity. Value. Brick _ _ 160.259 M 15,650 tons 878,422 tons $1,442,913 00 41.025 00 536.876 00 5.000 00 16.200 00 3.300 00 17,256 00 15,208 00 3,313,972 00 16.113 00 Clay Crushed rock Gems ' Granite „ Marble ___ Mineral water _ 14.005 cu. ft. 1,100 cu. ft. 229,019 gals. Natural gas __ Petroleum* 4.924.288 bbfs. 7,592 tons Salt Total - $5,407,863 00 ^Includes 875.000 barrels, valued at $251,250, used as fuel in NOTE.— A small gold and sUver production for 1911 is incli minerals. Held. ided in the Riverside Co unty total of those STATISTICS STATE MINING BUREAU. MADERA COUNTY. 39 Mineral, Quantity. Brick ___ 270 M $1,350 00 Copper Crushed rock 14,608 lbs. 1.300 tons 1,826 00 800 00 Gold - - 1,958 00 Granite Silver _ — _ 99,900 cu. ft. 74,190 00 77 00 Total $80,201 00 MARIN COUNTY. Mineral. Quantity, Value. Brick 19,695 M 173,646 tons 328,740 gals. $87,445 00 Crushed rock _ _ _ _ _ 108,786 00 Mineral water __ 36,500 00 Total $232,731 00 MARIPOSA COUNTY. 1 Copper 1 Gold _- I Silver . Total Mineral. Quantity. 14,641 lbs. $1,830 00 172,532 00 1,390 00 $175,752 00 MENDOCINO COUNTY. Mineral. Quantity. Brick .-_. Total 160 M $1,600 00 $1,600 00 MERCED COUNTY. Mineral. Quantity. Value. Crushed rock Total 106,750 tons $49,548 00 $49,548 00 N'OTE. — Gold and silver production included in Stanislaus County total for those minerals. MODOC COUNTY. t ^Bold . Silver Mineral. Value. $19,875 00 363 00 Total $20,238 00 40 MINERAL INDUSTRY OF CALIFORNIA. MONO COUNTY. MlneraL Quantity. Valuo. Gold . Lead . Silver Total 37,000 lbs. MONTEREY COUNTY. Mineral. Quantity. Crushed rock^ _-. Gypsum Infusorial earth Clay Limestone Total 35,117 tons 10,000 tons 850 tons 1,100 tons 2,000 tons ^Macadam, sand and gravel. NAPA COUNTY. Mineral. Quantity. Crushed rock^ Mineral water Quicksilver __. Total 238,732 tons 141,540 gals. 140 flasks i:Macadam, rubble, sand and gravel. NEVADA COUNTY. Quantity. Value. Copper _ __ ___ _- 1,665 lbs. Gold _ _ -_ - Granite _ 1,250 cu. ft. Lead 14,831 lbs. Silver — Total _ _ _ __ ORANGE COUNTY. MlnenO. QiaMomr. Value. Brick 1,650 M 7,560 tons 2,000 tons 6,345,275 bbls. $11,550 00 Crushed rock^ 855 00 Clay 3.200 00 Petroleum* 4,097,980 00 Total $4,113,585 00 'Macadam, sand and grareL >IncIudM 418,000 barrels, valued at $267,520, used as fuel in field. STATISTICS STATE MINING BUREAU. PLACER COUNTY. 41 Mineral Quantity. Value. Asbestos -_-- 125 tons | $500 00 Brick 700 M | 18,000 00 Clay 43,120 tons i 29.200 00 Copper 118,624 lbs. ; 14,828 00 Crushed rock 24,468 tons j 7,930 00 Curbing 47,395 lin. ft. ! 9,202 00 Gold 251,298 00 Granite 190,634 cu. ft. 199,599 00 Magnesite 300 tons 3.300 00 Mineral paint 90 tons I 584 00 Paving blocks 60 M ! 2,220 00 Silver 2,585 00 Total $539,246 00 PLUMAS COUNTY. Mineral. Quantity. Gold _ Lead 1.329 lbs. Manganese 2 tons Silver Total _ $228,785 00 60 00 40 00 1.125 00 $230,010 00 RIVERSIDE COUNTY. MlneraL Quantl^. Brick _„_ ____ 3,675 M Clay 67,295 tons Copper 6.753 lbs. Crushed rock^ 510,888 tons Curbing 3,000 lin. ft Gems ___ _ _ _ Gold^ Granite 12,295 cu. ft. Magnesite 575 tons Mineral water 90,580 gals. Paving blocks 126 M Silver" Total _ $28,572 00 79,961 00 844 00 453,724 00 1,800 00 250 00 20,623 00 10,555 00 4,600 00 11,500 00 7.939 00 2.121 00 $622,489 00 Macadam, rubble, sand and gravel. Including small production from Los Angeles County. SACRAMENTO COUNTY. Mineral. Quantity. Value. Brick Crushed rock Gold Granite Natural gas . Silver 13,017 M 370,556 tons "45'635'cu."ft. Total $76,571 00 131,037 00 1,812,826 00 ^2.307 00 83,890 00 3,047 00 $2,109,678 00 iLow spot value due to prison labor. 42 MINEEAL INDUSTRY OF CALIFORNIA. SAN BENITO COUNTY. liiineral. Quantity. Crushed rock 250,322 tons $107,558 00 Mineral water Quicksilver 3,600 gals. 9,775 flasks 1,540 GO 449,748 00 Total $558,846 00 SAN BERNARDINO COUNTY. Mineral. Quantity. Brick 1,340 M Clay 920 tons Copper — 666,489 lbs. Crushed rock 154,841 tons Gold Gypsum 20,584 tons Lead 161,338 lbs. Limestone 245,102 tons Marble 135 cu. f t Paving blocks 305 M Salt 3,600 tons Silver Total _ Paving blocks Salt Total SAN DIEGO COUNTY. Mineral. Quantity. Value. Brick 9,500 M 191,004 tons $68,000 00 Crushed rock 195,835 00 Gems - - 25,000 00 Mineral water 60,090 gals. 87,020 00 109 M 13,000 tons NOTE. — Gold and silver output included in Imperial County totals. SAN FRANCISCO COUNTY. MlneraL Quantity. Value. Crushed rock Total 145,050 tons SAN JOAQUIN COUNTY. Mineral. QuanUty. Value. Brick 5,276 M 25.510 tons $49,650 00 25,510 00 114,433 00 Olay Natural sras 1 Total $189,593 00 STATISTICS STATE MINING BUKEAU. SAN LUIS OBISPO COUNTY. 43 Mineral. Bituminous rock Brick Mineral water ___ jPetroIeum Quicksilver Quantity. 2,710 tons 2,000 M 2,000 gals. 38,092 bbls. 569 flasks Total $5,230 00 18.000 00 1,000 00 25,146 00 26,180 00 $75,556 00 SAN MATEO COUNTY. iBrick "Crushed rock Limestone __. Salt 1,350 M 66,568 tons 93,500 tons 27,500 tons Total $43,000 00 61,185 00 74,800 00 55,000 00 $233,985 00 i. SANTA BARBARA COUNTY. Mineral. Quantity. Brick 1,600 M Clay 12,000 tons Crushed rock 3,738 tons i Infusorial earth 1,344 tons } Limestone 4,239 tons } Mineral water 73,640 gals. Natural gas Petroleum^ 6,766,156 bbls. icksilver 50 flasks ndstone 58,976 cu. ft. \ Total $13,800 00 16,000 00 6,602 00 13,720 00 8,174 00 15,900 00 100,386 00 3,204,717 00 2.301 00 29,507 00 &3,411,107 00 i ^Includes 431,000 barrels, valued at $202,570, used as fuel In field. SANTA CLARA COUNTY. Mineral. Brick Crushed rock _ Limestone Mineral water Petroleum Quicksilver ___ Quantity. 6,000 M 116,875 tons 2.417 tons 165.720 gals. 12.828 bbls. 7,533 flasks Total $30,000 00 62,595 00 3,918 00 10,000 00 8.505 00 346,593 00 $461,611 00 44 MINERAL INDUSTRY OF CALIFORNIA. SANTA CRUZ COUNTY. Mineral. Quantity. Value. Bituminous rock Crushed rock i 24,815 tons ; 7,627 tons $80,371 00 7,627 00 Lime _ 216,508 bbls. 206 225 00 Limestone 22,622 tons 44,591 00 Total $338,814 00 SHASTA COUNTY. J Mineral. Quantity. Value. '' 1 Brick 2,825 M 875 tons $20 094 ( Chrome __ 13,697 ( Copper Gold Lead — Lime Limestone Mineral water Pyrite Silver 29,539,913 lbs. 881 lbs. 13,271 bbls. 67,924 tons 25,000 gals. 47,885 tons Total SISKIYOU COUNTY. Mineral. Quantity. SIERRA COUNTY. Mineral. Quantity. Value. Gold $461,513 00 5 604 00 Silver """" " Total $467,117 00 Crushed rock^ __. 52,633 tons Gems Gold Lime 150 bbls. Limestone 24 tons Mineral water 700,000 gals. Sandstone 650 cu. ft. Silver __ Total $553.03; 'Band and gravel. STATISTICS STATE MINING BUREAU. SOLANO COUNTY. Mlnenl. Quantity. 45 ^rick - Crushed rock -bituminous rock Mineral water Natural gas "Paving blocks Salt Total 500 M 159,049 tons 47,600 tons 30,000 gals. 263 M 100 tons $4,000 00 127.589 00 31,678 00 4,000 00 8,596 00 12,685 00 300 00 $188,848 00 • SONOMA COUNTY. . ■ - Mineral. Quantity. Value. Crushed rock _ 55,292 tons Curbing 3,700 lin.ft. Mineral water 202,500 gals. Paving blocks 3,278 M Quicksilver 94 flasks Total _ ___ __ $21,254 00 389 00 50,250 00 162,392 00 4.325 00 $238,610 00 STANISLAUS COUNTY. MlneraL Quantity. Brick 8.^ M Gold! _ Mineral paint Qfi tnna Silver^ Total __ $5,950 00 307.538 00 600 00 1,131 00 $315,219 00 'Includes Merced County production; also dredger production from Shasta and Trinity counties. TEHAMA COUNTY. Mineral. Quantity. Value. Mineral water __ Total _ 5.000 gals. $500 00 $500 00 TRINITY COUNTY. Gold _ Quicksilver Silver Total Mineral. Quantity. 44 flasks Value. $612,149 00 2,024 00 6.777 00 $620.950 00 I 46 MINERAL INDUSTRY OF CALIFORNIA. TULARE COUNTY. Mineral. Quantity. Value. Brick 10,225 M $81,000 a Gems ^ 20,000 0{ Magnesite 7,763 tons 57.335 0( Total - - $158,335 0( TUOLUMNE COUNTY. Mineral. Quantity. Value. Gold — 1 $1,093,484 0( Lime 75.000 bbls. 70.000 0( Limestone 4,319 tons Marble 18,966 cu. ft. Silver • _— Total — — _ VENTURA COUNTY. Mineral. Quantity. Value. Brick Clay Crushed rock Natural gas _ Petroleum^ _- Sandstone _„ 900 M 1,900 tons 1,000 tons 499,082 bbls. 4,658 cu. ft. Total ilncludes 32.400 barrels. Talued at $22,680, used as fuel In field. YUBA COUNTY. Mineral. Quantity. Value. Crushed rock 47,555 tons $9,31 Gold 2,997,07 Silver _ 5.2t Total $3,011,6? UNAPPORTIONED. Barytes Brick Borax Cement Coal Feldspar Fuller's earth Glass sand Iron Platinum Soda Tungsten Zinc Mineral Quantity. Total 309 tons $2,207 15.000 M 98.775 50,945 tons 1.456.672 6,371.369 bbls. 9.085.625 11,047 tons 18,297 740 tons 4,560 466 tons 5.294 8.620 tons 8.672 558 tons 558 511 oz. 14.873 9.023 tons 52.887 4,856 tons 127.706 2,679.842 lbs. 152.751 $11,028,877 PUBLICATIONS Of THE CALIfORNIA STATE MINING BUREAU. ,'*Report I ♦Report II. ♦Report III. ♦Report IV. ♦Report V. •Report VI- ♦Report VI- ♦Report VII. •Report VIII. •Report IX. ^♦Report X. Report XI. *Report XII. •Report XIII. •Bulletin 1. ♦BuUetin 2. •Bulletin 3. •Bulletin 4. •Bulletin 5. Bulletin 6. •Bulletin 7. •Bulletin 8. Bulletin 9. ♦Bulletin 10. •Bulletin 11. I 'Bulletin 12. ♦Bulletin 13. ♦Bulletin 14. ' Bulletin 15. •Bulletin 16. ♦Bulletin 17. ♦Bulletin 18. I ♦Bulletin 19. ♦Bulletin 20. •Bulletin 21. - •Bulletin 22. Bulletin. Bulletin 23. ♦Bulletin 24. ♦Bulletin 25. ♦BuUetin 26. Bulletin 27. •Bulletin 28. REPORTS. Asterisk (♦) indicates the publication is out of print. . Henry G. Hanks. 1880. Henry G Henry G Henry G Henry G -Part 1. -Part 2. Hanks. 1882. Hanks. 1883. Hanks. 1884. Hanks. 1885. Henry G. Hanks. Wm. Irelan, Jr. 1887. Wm. Irelan, Jr. Wm. Irelan, Jr. 1888. Wm. Irelan, Jr. 1889. Wm. Irelan, Jr. 1890. Wm. Irelan, Jr. 1892. J. J. Crawford. 1894. J. J. Crawford. 1893. (First biennial.)— (Second biennial.). (Third biennial.).-. Price. Postage. - $1.00 $.15 Price. Postage. 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 Geology, Palaeontology, and Mineral Resources of Cahfornia.— 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 Petroleum and Asphaltum in California.— A. S. Cooper. 1899 Mineral Production of California, by Counties, 1899.— Chas. G. Yale. (Tabulated sheet) The Mother Lode Region of California.— W. H. Storms. 1900 Oil 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 Cahfornia for Fourteen Years. — Chas. G. Yale. 1900. (Tabulated sheet) . Reconnaissance of the Colorado Desert Mining District.— Stephen Bowers. 1901 The Copper Resources of Cahfornia.— P. C. DuBois, F. M. Anderson, J. H. Tibbits, and G. A. Tweedy. 1902 .50 The Saline Deposits of Cahfornia.— G. E. Bailey. 1902 Mineral Production of Cahfornia, by Counties, 1901.— Chas. G. Yale. (Tabulated sheet) Mineral Production of California for Fifteen Years.— Chas. G. Yale. 1901. (Tabulated sheet) The Quicksilver Resources of Cahfornia.— Wm. Forstner. 1903 .75 Mineral Production of California, by Counties, 1902.— Chas. G. Yale. (Tabulated sheet) .04 .08 PUBLICATIONS OF THE CALIFORNIA STATE MINING BUREAU— Continued. Asterisk (*) indicates the publication is out of print. Price. Postaga. ♦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 California 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) __ ♦Bulletin 35. Mines and Minerals of California for 1903,— Chas. G. Yale. 1904. (Statistical) . ♦BuUetin 36. Gold Dredging in California.— J. E. Doolittle. 1905 Bulletin 37. G€ms, 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 Cahfornia.— Wm. Forstner, T. C. Hopkins, O. Naramore, L, H. Eddy. 1906 . - *Bulletin 39. Mineral Production of Cahfornia, by Counties, 1904.— Chas. G. Yale. (Tabulated sheet) ♦Bulletin 40. Mineral Production of California for Eighteen Years.- Chas. G. Yale. 1904. (Tabulated sheet) ♦Bulletin 41. Mines and Minerals of California for 1904.— Chas. G. Yale. (Statis- tical) _ ♦Bulletin 42. Mineral Production of California, by Counties, 1905.— Chas. G. Yale. (Tabulated sheet) ♦Bulletin 43. Mineral Production of California for Nineteen Years.— Chas. G. Yale. 1905. (Tabulated sheet) __ ♦Bulletin 44. Mines and Minerals of California for 1905.— Chas. G. Yale, (Statis- tical) ♦Bulletin 45, Auriferous Black Sands of Cahfornia,— J, A, Edman, 1907 Bulletin 46, General Index to Publications of the State Mining Bureau.— Compiled by Chas. G. Yale. 1907 .30 ♦Bulletin 47, Mineral Production of California, by Counties, 1906,— Chas. G. Yale. (Tabulated sheet) ♦Bulletin 48. Mineral Production of California for Twenty Years.— Chas. G. Yale. 1906. (Tabulated sheet) ♦Bulletin 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. Thorne, J. A. Edman. 1908 1.00 — ♦Bulletin 51. Mineral Production of California, by Counties, 1907.— D, H. Walker, Statistician. (Tabulated sheet) ♦BuUetin 52. Mineral Production of California for Twenty-one Years.— D. H. Walker, Statistician. 1907. (Tabulated sheet) - ♦Bulletin 53. Mineral Productions of California for 1907, with County Maps.— D. H. Walker, Statistician. 1908. (Statistical) -- *Bulletin 64. Mineral Production of California, by Counties, 1908.— D. H. Walker, Statistician. (Tabulated sheet) ♦Bulletin 56. Mineral Production of Cahfornia for Twenty-two Years.— D. H. Walker, Statistician. 1908. (Tabulated sheet) ♦Bulletin 66. Mineral Productions for 1908, County Maps, and Mining Laws of California.— D. H. Walker. 1909. (Statistical) _ Bulletin 57. Gold Dredging; In California.— W. B. Winston, Charles Janin. 1910.. 1,60 - •Bulletin 68. Mineral Production of California, by Counties, 1909.— D. H. Walker, Statistician. (Tabulated sheet) •Bulletin 69. Mineral Production of California for Twenty-three Years.— D. H. Walker, Statistician. 1909. (Tabulated sheet) •Bulletin 60. Mineral Productions for 1909, County Maps, and Mining Laws of California.— D. H. Walker. 1910. (Statistical). Bulletin 61. Mineral Production of California by Counties for 1910.— D. H. Walker, Statistician. (Tabulated sheet) BuUetin 62. Mineral Production of Cahfornia for Twenty-four Years.— D. H. Walker. Statistician. 1910. (Tabulated sheet) Bulletin 68. Petroleum Development In Southern California.— P. W. Prutzman. 1912 Bulletin 64. Mineral Production for 1911.— E. S. Boallch, Statistician, 1912 PUBLICATIONS OF THE CALI FORN I A . STATE MINING BU REAU— Continued. Asterisk (*) indicates the publication is out of print. REGISTERS OF MINES WITH MAPS. Price. Postage. Amador County $.25 $.06 Butte County ,25 .08 !*Oalaveras County El Dorado County _ . ! *Inyo County *Korn County Lake County .25 .08 Mariposa County .25 .08 Nevada County .25 .08 *Placer County *Plunias County u *San Bernardino County ___ San Diego County .25 .08 Santa Barbara County . .25 .08 •Shasta County ' I *Sierra County Siskiyou County •Trinity County Tuolumne County .25 .08 Yuba County •_ .25 .08 Register of Oil Wells (with map), Los Angeles City-— — -^ .85 .02 OTHER MAPS. California, Showing Mineral Deposits- Mounted $1.50 $.20 Unmounted .30 .15 Forest Reserves in California- Mounted _.- .50 .08 Unmounted .30 .06 Mineral and Relief Map of California .25 .06 El Dorado County, Showing Boundaries of National Forests .20 .02 Madera County, Showing Boundaries of National Forests .20 .02 Placer County, Showing Boundaries of National Forests .20 .02 Shasta County, Showing Boundaries of National Forests .20 .02 Sierra County, Showing Boundaries of National Forests .20 .02 Siskiyou County, Showing Boundaries of National Forests .20 .02 Trinity County, Showing Boundaries of National Forests .45 .02 Tuolumne County, Showing Boundaries of National Forests .20 .02 Mother Lode Region .05 .02 Desert Region of Southern California .10 .02 Minaret District, Madera County .20 .02 Copper Deposits in California .10 .02 4— mb64 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. tilAK 3 1968 ECl^^ 1998 ECEIVED DEC 6 ]m\ PHYS SCI LIBRARY Book Slip-20m-5,'59(,A2537s4)458 1S1S20 Calif. Dept. of natural resources. Div. of mines Bulletin. PHVSfCAL SCIENCES UBUm CallNumbas TN2ii C3 A3 no*61|-66 TN24 C3 ' A3 CO! LIBRARY imiVKRSITY OF CALXFQRWBf im590