TN 2.4-' Bixby j| atalogue of Utah minerals and localities THE LIBRARY OF THE UNIVERSITY OF CALIFORNIA LOS ANGELES The RALPH D. REED LIBRARY 1>KI'ARTMIOT OF tJKOI.OGY UNIVERSITY OF CALIFORNIA. I .OS A.NOKI.KS, CALIF. ATALOGUE F JTAH MINERALS and LOCALITIES !th Descriptive List id Notes for Collectors MAYNARD BIXBY A CATALOGUE OF UTAH MINERALS AND LOCALITIES With Descriptive List, And Notes for Collectors. -by- MAYNARD BIXBY. Salt Lake City, Utah. 1904. Copyright, 1902, by MAYNARD BIXBY. (Third Ed.) COMPLIMENTS OF R. H. OFFICER & CO., ASSAYERS AND CHEMISTS, SALT LAKE CITY, UTAH. WRITE FOR PRICES. YOU WANT A GOOD MINE! MANY YEARS EXPERIENCE IN MINl^S AND MINERALS. WRITE TO ME MAYNARD BIXBY. SALT LAKE CITY, UTAH. MINERAL LOCALITIES. BEAVER COUNTY. (Vy Beaver City, near; hyalite, banded in brownish and white to nearly colorless. Beaver Lake District; azurite. 0. K. Mine; bornite, chalcocite, chalcopyrite, covellite, copper, limonite, mal- achite, molybdite, pyrite. Bradshaw District; aragonite, aurichalcite, cerussite, cuprite, malachite. Cactus Gulch; chalcopyrite, garnet, limonite, quartz, crystals enclosing tourmaline. English Springs; Iron ores. Frisco; angelsite, argentite,barite, brdchantite, cerar- gyrite, cerussite, dufrenoysite, galena, garnet, pyrargy- rite, proustite, selenite, sphalerite, often phosphorescent, zincite, wollastonite. Granite District; almandine garnet, barite, bismuth - inite. Indian Creek; gold. Mooney Springs; topaz. Rock Corral; 9 miles east of Milford.ortuoclase crys- tals, smoky quartz crystals, prase. Rocky District; Adelia Mine, wulfenite. Star District; azurite, bismuthinite, galena, cerargyr- itc. (erii>site, malachite. Burning Moscow Mine; goslarite. Sulphurvale; sulphur. Elsewhere; bismite, bismutite. BOX ELDER COUNTY. Copper Mountain Mine; azurite, cuprite, malachite. Dove Creek; gold, garnet. Lucin District; cerussite, galena, Empire Mine, wul- fenite in aggregate of thin yellow plates and crystals. North Shore of Salt Lake; asphaltum as an exuda- tion, petroleum in shale. Park Valley Mines; galena, gold, pyrite; monazite (?) at Century Mine. Sierra Madre District; bornite, cerussite. chalcopyrite, galena, gold, malachite, molybdenite, rose quartz. New Foundland District; cerussite, galena, copper min- erals. Vipont Mine; wire silver and gold, ruby silver, pyrite. Elsewhere; Utah onvx (aragonite. or travertine.). /"^' M f\^^mf^\r^i Utah Minerals and Localities. CACHE COUNTY. Blacksmith Fork; cernssite, galena. La Plata; a/.unte. eerussite, galena, malachite. Logan; near, cuprite, variety chalcotrichite. Richmond; near, galena. Southeastern part of County; iron ores. CARBON COUNTY. Castle Gate; coal, native coke. Eastern part of County; iron ores. Pleasant Valley, Sunnyside; coal. Whitmore Canon; ozocerite in sandstone, asphaltuni and other hydrocarbons. Winter Quarters Mine; eoal, co pa lite on coal. DAVIS COUNTY. Antelope Island; copper minerals, cpidnte, garnet, mi- caceous hematite. Farmington, in hills east of; a/airite. bornite. gold, malachite. Lake Shore in winter; mirabilite. EMERY COUNTY. Castle Valley; agates, azurite. and malachite in sand- stone, chalcedony, ppsomite (?), silicih'ed trunks of trees containing pockets of kose quartz crystals. Copper Globe Mine; copper minerals. San Rafael River; red alabaster. San Rafael Swell, S E of Emery; carnotite, gummite, tiruninitc. Summerville District; copper minerals, cerus-ite. gu Icna. GARFIELD COUNTY. Cannonville; wheelerite. Coyoto, near; (.rpiruent. realgar, stibnite. Between Junction and Coyoto; copper minerals. Henry Mts; bornite. ehalcopyrite. coal, gold, octa- hedral pyrite. Moss Agate Hill near Panguitch; moss agates. GRAND COUNTY. Cisco, near: agates, fine red jasper casts of fossil shells chalcedony, travertine. Richardson, near: carnotite. copper minerals, galena. Salt Wash; copper minerals. Thompsons, near: selenite crystals. IRON COUNTY. Cedar City, west of; magnetite crystal-, ncca-ionally Utah Minerals and Localities. with apatite crystals, lodestone. In hills east of Cedar City; coal, seknite. Coyote District; orpiment, realgar in strata under lava. stibnite. State Line; argentite, gold, pyrite, silver sulphides. Southeastern part of Co.; coal. JUAB COUNTY. Bavarian Con. Mine, 3 miles S E of Eureka; seam of coal in porphyritic formation. Diamond District; cerussite. galena, quartz crystals .in losing liquids at Miller Mine. Fish Springs; angelsite (?) cerargyrite, cerussite, galena. Tintic District; Boss Tweed Mine; azurite, cuprite, malachite, bismite. Carissa Mine; aurichalcite, azurite. barite, bismutite, brochantite, calcite, chrysocolla, conichalcite, cuprite, .copper, onargito. lettsomite, malachite, mixite, olivenite, pittiscite, sccrodite. utahite. and near by, greenish gar- net in limestone. Emerald Mine; native bismuth crystals. Mines of Eureka; aragonite, argentite. anglesite, azur- ite, luirite. brochantite, calcite. calamine. cerargyrite crystals, cerussite crystals,cbrysocola. clinoclasite crys- tals, conichalcite, euprit?. enargite. erimte, gold, galena. jarcsite crystals, leadhillite crystals, limonite. Hnarite crystals, malachite, melaconite. mixite, mimetite, red, white and green oliventite, variety of oliventite contain- ing /.inc. pearceite crystals, pyrite, pharmacosiderite, . Hi-art/ f-ry-'tal^. snlnhur crystals occasionally included in aivjclesite crystals, silicious stalactites, silver, selen- ite, tyrolite crystals, utahite crystals, zeunerite crystals. l'-cud inorphs of dolomite and oliventite after calcite. ami many other posudomorphs. Hodiva Mine: minium, selenite. Homestake and Shoebridge Mines; enargite crystals. Humbup; Mine: anglesite. cerussite. galena, stephanite. Iron Mine; bimuth minerals, cerargyrite. hematite, limonite. Levan, near; variegated alabaster of brownish and yellowish tints. Mines cf Mammoth; ararentite. aragonite, azurite, lun-ite. borickite ('!). brcchantite, calcite, cerussite, chenevi^ite, cerarpyrite, clinoclasite, cuprite, conichal- cite, enargite, erinite, galena, gold, jarosite, lettsomite, malachite, melaconito. mixite, oliventite, pyrite. phar- macosiderite. selenite, sccrodite, tyrolite, utahite. pseu- domorphs of limonite. malachite, and quartz after cal- cite. also a great variety of other pseudomorphs. stal- actitic hematite, and masses of curled plates of hematite. Nephi; gypsum, halite. Utah Minerals and Localities. Sioux Mine; azunte. galena, malachite, quartz and dolomite ciystals. Sunbeam Mine; octahedral pyrite. Swansea Mine; anglesite, cerussite, galena, pyrite, silver, sphalerite. Victor Mine; blue calamine. Elsewhere in Tintic Dist.; bornite, bismutite. chalco'- pynte, chaleocite, aluminous chrysocolla. 'Thomas Mts, 9 miles northerly from Drum Springs; chalcedony, carnelian, garnet, variety almandine, hyalite, transparent colorless topaz crystals loose in soil and in rhyolite. sherry tinted topaz crystals in rhyolite with bluish quartz crystals, sanadin, and hematite crystals. and occasionally including these minerals, topaz grayish and opaque from inclusions of quartz crystals. West Tintic District; cerussite, galena, molybdenite, pyrite. KANE COUNTY. Alum Hills; alum minerals. Johnson and Kanab Creeks; coal, gypsum. Kimball Valley; gypsum. Paria, near; alum minerals, coal, gypsum. Paria Mining Co; a/urite. cuprite, malachite. MILLARD COUNTY. Antelope Springs, near; pyrite cubes, altered to limon- ite. in slate. Black Rock, near; red and black mottled, and spheru- litic obsidian. Cove Creek Sulphur Mines; sulphur crystals, pseudo- morphs of sulphur atter twigs, leaves, cones, etc. Detroit District; azurite. bismutite. cuprite, chalced- ony, hematite crystals three miles north, jasper, mal- achite, pyrite altered to limonite, pyrolusite. Kanosh, near: gypsum in large bed, manganese min- erals. Sawtooth; garnet, copper and lead minerals, molyb- denite. Twin Peaks; white apatite, augite, and martite crystals loose in soil, and in place in eruptive rocks. Elsewhere in Coun L y; galena. Utah onyx. MORGAN COUNTY. Carbonate Hill Mine, near Peterson; cerussite. Copper Mountain Mine; copper minerals. PIUTE COUNTY. Belknap, near: pyrolusite. Bully Boy and Webster Mines; large ''sceptre" quartz crystals, \\ultenite. Utah Minerals and Localities. Dalton Mine; gold, rhodochrosite. tellurium minerals. Deer Creek; alum minerals, copper minerals, white barite crystals, selenite. East of Marysvale in foot hills; amethystine quartz, selenite. Green Eyed Monster Mine; large pyrite crystals al- tered to limonite. Ohio; cerussite, chalcocite, chalcopyrite. galena, mala- chite, tetrahedrite. Mt Baldy; anglesite, argentite at Pluto Mine, cerus- site. cerargyrite with gold, galena, wulfenite, tellurium minerals. Sevier Canon, near Deer Creek; satin spar. Six miles south of Marysvale at quicksilver mine; onofrite, tiemannite crystals. Elsewhere in County; galena, garnet, gold, blue hyalite. RICH COUNTY. Western part; iron minerals. SALT LAKE COUNTY. Alum Point; bushmanite. Big Cottonwood; anglesite, aurichalcite at Carbonate and Keeler mines; cerussite, galena, malachite, pyrolus- ite. wulfenite at Woodlawn mine; molybdenite, cuprite at Copper King Mine. Bingham; Queen Mine, argenite, barite; Tiewaukee Mine, binnite: \Vinnamuck Mine, dufrenoysite. pyrargyr- ite. rhcdochrosite; tetrahedrite at Kighty Xine Mine; line crystals of enargite at Commercial Mine. Bingham Canon; wood replaced by copper and mala- chite, native copper. Butterfield Canon; realgar, orpiment. luckite and mal- lardite at Lucky Boy Mine; rhodochrosite. Carrs Fork and Bingham Canon; native cojjper, placer gold. Draper, near: kaolinitf. Highland Boy Mine; chalcopyrite. cuprite, pyrite. Little Cottonwood; dufrenoysite rarely; caledonite crystals; chalcopyrite at Oxford and Geneva Mines; linarite at Grizzly and other mines; wulfenite in deli- cate yellow crystals at City Rock Mine. At Little Emma Mine; anglesite. calamine. chrysocolla, cerussite. cervantite. galena, malachite, pyrite. pyrolusite, sphaler- it?. stephanite. wulfenite. New State Mine, near mouth of Big Cottonwood Can- on; gold. Old Jordan and Galena Mines; cerussite. chalcopyrite, enargite crystals, galena, goslarite, milky opal, pisanite. (?) pyrite, sphalerite, ''sceptre" quartz crystals, tetra- hedrite crystals with wire silver. Parley's Canon; greenish granular corundum. Salt Lake Shore; mirabilite in winter. Utah Minerals and Localities. SAN JUAN COUNTY. Golden Queen and other mines; gold. Halletts Creek and in S W part of County; coal. La Sal Mts; copper minerals, mangan.te crystals showing fine red translucency, molybdenite. - Near San Juan River below Bluff City; chalcopyrite, copper, malachite, silver. Elsewhere; garnet, variety pyrope, amethyst, olivine, placer gold. SAN PETE COUNTY. Gunnison; halite in fine cubes. Elsewhere; coal, gypsum, iron minerals. SEVIER COUNTY. Fish Lake; common opal. Foot hills north of Glenwood; chalcedony geodes. sel- enite. Salina Canon; coal with yellow hydrocarbon, copalite, (?) galena in sandstone. Elsewhere; fullers earth, orpiment in clay, opalized wood. SUMMIT COUNTY. Bonanza Flat; green garnet (grossularite) in crystals and massive. Coalville; coal. Daly Judge Mine; large crystals of galena, flnorite. Daly West Mine; quart/, crystals with sphalerite crystals. Other Park City Mines; anglesit?. azurite. cerussite, cerargyrite, galena, malachite, sphalerite occasionally phosphorescent, pyrite. tetrahedrite. Silver King Mine; azurite. cerussite, galena, malachite. Uintah; anglesite. argentite. cerargyrite. tetrahedrite. malachite. TOELLE COUNTY. Brickyard Mine at Mercur; melanterite, orpiment crystals (and foliaceous). realgar crystals, sulphur. Clifton District; Gold Hill mines; azurite. bornite. goU in calcite, garnet, malachite. Holstein group; copper minerals. Albany (ilrnup; azurite. ehalcopyrite. chrysn- colla. galena, malachite. Pole Star Croup; azurite. con- ichalcite, cuprite, malachite, olivenite. tetrahedrite. py- rito. Cyclone Group; wulfenite. Troy Group; tel- lurium minerals. Deep Creek Region; agates, cerussite. chalcedony, ga- lena. Dry Canon; at Kearsarge Mine; hessite. At Mono Mine; azurite. cerargyrite. galena, malachite, coppper. silver, stephanitc. Utah Mineials and Localities. Dutch Mountain; augite, azurite, cerussite, fluorite, galena, malachite. Dugway; barite with pink and white 'fluorite, and pepper, cerussite, cerargyrite. cuprite, flnorite of varie- gated color and enclosing galena, magnetite, silver, wul- fenite rarely in pyramidal crystals.' Dugway Range, about fifteen miles south of Dugway; bixbyite on topaz and rhyolite. chalcedony geodes. garnet crystals on topaz and rhyolite. altered to topaz, etc, topaz crystals often opaque from inclusions of quartz red apatite crystals on topaz crystals. Geyser-Marion Mine, at Merc'ur; calcite. cerargyrite, (Sparrow Hawk Claim), cinnabar, jarosite, stibnite, varisclte. Golden Gate Mine, Mercur; arsenopyrite. calcite, cinna- bar, reaigar with orpiment. Granite Mountain; galena, kaolimte. Hillside Mine, Mercur; cinnabar, orpiment. sulphur. Johnsons Pass; salona. Utah onyx of greenish- and other shades. Lion Hill, near Ophir; cerargyrite, cerussite, galena, utahite rich in s,,ver. Mercur Mine; calcite red from included realgar, cinna- bar, orpiment crystals, realgar crystals, selenite, vans- cite. Midas Mine; gold with molybdenite (?). Mineral Hill; cerussite, copper minerals, galena. Ophir; auiichalcite. calcite. cerussite. cerargyrite. chal- copyrite. fluorite with dolomite crystals, malachite, py- rite, smithsonite crystals, tetrahedrite crystals with white flurrite. Overland Canon near Clifton; bismuthinite (?). anite. nnabar. orpiment, real- Pine Canon near Tooele; Sacramento Mine at Mercur, gar. sulphur. Stockton; cerussite. galena, p rite. Sunshine; cinnabar, orpiment. s Wild Cat Mountain; fluorite itli silver, prosopite. Elsewhere; graphite. UINTAH COUNTY. Ashley, near: cannel coal, asphaltum. carnotite. Asphalt Creek; asphaltum. Bullionville District; copper minerals. Fort DuChesne, near: gilsonite. Ouray, near: gypsum. Elsewhere and on Uncompahgre Reservation; gilsonite, ozocerite, wurtzilite. UTAH COUNTY. American Fork Canon; cerussite. galena, molybdenite, pyrite, tetradymite, tetrahedrite. Clay Canon, near Fairfield variscite, wardite. Utah Minerals and Localities. Lakeside Mts.; chalcanthite. iceland spar, large pyrite crystals altered to limonite and hematite. Utah Onyx. Mill Fork {station; coal. Soldier Summit, and near Pleasant Valley Junction; ozocerite, and other hydrocarbons. Springville, mar; Utah onyx, black fossil marble. Thistle Junction, :i miles east: geodes em-losing li\ - drocarboiis in a viscid state. Elsewhere; coal, alabaster, tschermigitc. WASATCH COUNTY. Blue Ledge and Snake Creek; cerussitc. galena, pyro- inorphite. spalerite. Strawberry Creek; hydrocarbon compounds. South East corner, near Smith's Well; gilsonitc. Wasatch Range, west of Midway; green garnet (gr;s- .sularite), olive green zonal muscovite, showing asterNm, phosphorescent limestone, copp; r minerals. WASHINGTON COUNTY. Beaver Dam Mts; realgar. Dixie Mines; aurichalcite, a/.urite. copper, cuprite, timonite. malachite. Silver Reef; in sandstone, argentite. a/.urite. autunite, cerargyrite, malachite, silver, fossil plants and trees re- placed by argentite, coal, copper minerals, cerargyrito and silica. St. George, west of 20 miles; iron minerals, antimonial minerals. Virgin River, transparent halite. . Washington, near; carnotite. Elsewhere; gvpsum. WAYNE COUNTY. Fremont River; selenite crystals of very large siw, occasionally ; nclosing liijuids. Starvation Creek; coal. Elsewhere; hematite, gold. WEBER COUNTY. Huntsville, ten miles east; pyrolusite. Ogden Canon; hornlih nde. limonite, uraninitc. Elsewhere; cerns-iic. galena. The following minerals have been variously report- ed, but need continuation; albandite, arsenic, arsenolite. atacamite, barytocalcite. boulangerite. catseyc. chal- cophanite. chiolite. cubanite. embolite, franklinite, fries- lebenite. hausmannite, ilmenite, iron silicates, magnesite. miargyrite. ]ihenacite. phosgenite, polybasite. pyrochro- ite. ruby, sapphire, spinel, strontianite. witherite. Utah Minerals and Localities. Notes for Collectors of Minerals. Tintic District. This district is noted for its fine specimens of the rare copper arsenates, as well as for its .meat variety of mineral species. Pearceite in cry- -tals has hc'tn one of the rarest noted, and the speci- iiu n- seen liave been most remarkable in size, the larg- r>t being a half an inch or more across. The crystals arc i,t' tabular habit, 'coated with a bluish substance, and wer, associated with small brilliant crystals of en- argite ami anglesite. The crystals also show the pe- culiar triangular markings noted by Prof. S. L. Penfield in. describing pearceite from Montana. Less tlian a half do/.en specimens of tliis mineral have been preserved. Xeiinerite also occiii's with exceeding rarity, the crystals varying in coliii- from \ello\visli to a deep olive, almost emerald green. I'hry are of thin tabular habit, the larg- esl being less than one fourth of an inch across. Olive- nite has been abundant at times, but the red tinted specimens have IK en quite rare. The red crystals are usually very minute, and range in color from a light reddish brown to a deep blood red. They afford beauti- ful mounts for the microscope, and are usually found densely lining small cavities in a hard silicious ore, oc- casionally with rnargite, also with anglesite, and in- cluded in the latter mineral. White olivenite occurs sparingly in very delicate felted bunches of capillary cry-taK Seorodite occurs in crystals of fine quality, the largest nearlv one fourth of an inch in size, of a, blui-h green color, also of brown tints. Leadhillite has been observed rarely, but the crystals seen were of good quality, nearly colorless, and averaged possibly mi. re than a half an inch across. Anglesite occurs in a gnat variety of form, and its crystalography would be veil worth careful investigation. Many tine translucent and transparent crystals have been collected, ranging in color from colorless and white, to dark grayish, and a fine vellow. Crystals measuring about two inches in length have been preserved and larger specimens have been re- ported. Cerussite has been seen rarely in beautiful nearly transparent twin crystals. .Cuprite is rarely seen crystal- i/.;d. A small quantity of mimetite was found, occurring in very delicate white, grayish and yellow, long slender hexagonal crystals. Brilliant small crystals of pnargite have been observed at the mines of Eureka, also in large crystals of dull lustre at the Homestake Mine, near Silver City, a'nd of smaller size at the mines of Mam- moth. Very fine crystali/.ations of this mineral have been obtained at the Commercial Mine. Bingham. Mix- ite has been collected at various mines of th.e Tintic District, but of finest quality at the Carissa Mine, where it t'requentlv occurs hi minute aoicular crystals forming 'beautiful pale green velvety surt'acrs, largely in a barite Utah Minerals and Localities. gangue. Notable crystals of brochantite were found at the Eureka Hill Mine, the largest a half inch or more in length, and of the wedge habit. No other locality has furnished such crystals of this mineral. A very few remarkable crystals of linarite have been seen. A few specimens of Utahite in good sized crystals have been collected. Pseudomorphs in great variety occur in the Tintic mines. Topaz Localities'. The Thomas Mountain localities are situated in Juab County, about nine miles in a northerly direction from Drum Springs, in the Detroit District, or about 55 miles in a northwesterly direction from Desert. The topaz crystals occur in cavities and seams of a light gray rhyolite, a great belt of which has been pushed up for 20 miles or more in both northerly and southerly directions from Thomas Mountains. The loose colorles crystals are found on the hillsides, and in the sands of the dry gulches, where they glitter in countless num- bers. The sherry colored crystals are obtained by blast- ing the richer spots in the rhyolite, where the crystals are found attached to the sides of the cavities, and frequently loose in them, with a soft kaolin-like ma- terial. These colored crystals bleach very rapidly on ex- posure to the light, and particularly when exposed to the direct rays of the sun, losing nearly all color in a day. The writer has been unable to find any explana- tion of this fact. The largest topaz crystals have been found at the bixbyite locality in the Dugway Range, about 15 miles from Thomas Mountains, and ssvcra! miles southerly from the Dugway grade. Opaque crys- tals of much larger size than any of the transparent kinds, filled with quartz, and occasionally with black cubes of bixbyite attached, have been found here spar- ingly. The curious groups of opaque gray topaz from Thomas Mountains are of exceedingly rare occurrence, in perfection, though many imperfect specimens are seen. The more imperfect crystals of the gray topaz appear as if eroded by some solvent. These topaz lo- calities are exceedingly interesting to the mineralogist, and good specimens are obtainable at any time. Tiemannite and Onofrite. The locality near Marysvale lias produced tlir only crystals of tiemannite known, and many fine specimen* have been obtained, the largest probably hue fourth of an inch across. They are generally of th? tetrahedral habit and highly modified. No crystals of onofrite have been reported. These minerals occur in a limestone gangue. the crystals appearing in open trains. Crystal- ized specimens are reported unobtainable now. Utah Minerals and Localities. Orpiment and Realgar. Probably the finest and largest known crystals of these minerals have been found in the gold mines of Mercur, mainly in the Mercur, Golden Gate and Brick- yard mines. Crystals of great perfection and an inch or more in length, have been collected from these mines. The discovery of perfect crystals of orpiment including many of twinned habit, enabled the classification of this mineral in its proper system of crystalization, viz.: in the monoclinic system, the crystals hitherto found being so imperfect that it was placed in the orthorhombic system. Groups of orpiment crystals occur with realgar crystals rarely among them. Beautiful crystals of real- gar occur with crystals of calcite, and often penetrating the latter. Variscite. Variseite in large nodules associated with bluish ward- ite, has been one of the notable finds in Clay Canon, near Fairfield. Large specimens of fine green color, eight inches or more across, have been mined, which, sawed into sections and polished, made showy speci- mens for the collection. Martite. The largest crystals of this form of hematite known have been collected it Twin Peaks, Millard County. Octahedral crystals, showing but one termination, and five inches or more across, have been collected. Groups of martite crystals are also sparingly seen, associated with crystals of augite and apatite. These specimens were collected in the soil, and consequently somewhat bruised, but smaller crystals are found in place in the eruptive rock of the mountains. Rare Minerals. Among the rare minerals, bixbyite, luckite, mallardite, wnrdite and utahite have not been reported outside of Utah. A mineral, however, giving the reactions and having the appearance of utahite, has been found near Moreiici. Arizona. Zeunerite is exceedingly rare at the mines of Tintic. but a half dozen or so having been pre- served. It is possible that a small percentage of uranium vims through some of the Tintic ores. About two dozen specimens of lettsomite have been found, while chalco- phyllite has been reported in but one or two specimens. Carnotite occurs in sandstone, near Richardson, also S E of Emery, Emery Co., and in other localities. Uranin- ite occurs in very small quantity at the localities. Du- frenoysite and binnite are probably unobtainable at present. The best specimens of covellite have been ob- Utah Minerals and Localities. taincd at the ( ). K. Mine, but the mineral 5- rather fri- al>le. Copper ar-cnates. similar to those of Tintic. liave l;cen found at mines near Clifton, and with develop- ment of the prospects there interesting linds may \- mad'i . Tlie less rare molybdenite, which seems to be cMiiing into commercial use. has been found in several localities, but no crystals have been reported. Utah has been and \vi!l continue to be an interesting fu-ld fur the mineralogist, and it is to be regretted that no in- >titution e\ic- for pure minerals, and specific analyses <,f I tali species. \vlure obtainable. AGATE. Variegated chalcedony. ALABASTER. Massive granular gypsum. ALMANDINE. Iron-aluminium garnet. AMETHYST. Quart/, colored by niangaiu-e. AMPHIBOLE. II :,'iblende. Bisilicate of protoxide bases. ANDRADITE. Calcium-iron garnet. ANGLESITE. Sulphate of lead. II.. 2.7.1-3: <:.. (i.l2--(i..'I!l; crlor. white, vellow grayish, greenish, hlui-h. Comp.. ^iilphur trioxide, 26.4; lead' oxide. 73.(i. APATITE. Phosphate of calcium. .. II., 4.5-5; G., 3.17-3.23: coir, sea green, viol; i blue. gray. ll< sh red. bluish green, white, yellow, brown, Cnmp.. approxi- mately ]iln '~|iliorHs penfcxide. 41.0: Mine. .13.04: fluorine. 3.30. with thaeis of iron and alumina. ARAGONITE. Carbonate of calcium. II.. 3..1--4: G., 2. 03- -2.9.1; color, while, gray, velli.w. ureen. violet. Comp.. carbon dioxide. 44: lime. .1(5. ARGENTITE. Silver sulphide. II.. 2--2..V. G., 7.20-- 7.3(5; col;:r and S.. blackish lead gray, -treak -Inning. O mi'., sulphur. 12.0: -ilver. S7.1. AR3ENOPYRITE. Sulph-arsei-ide of ir.;ii. EL r 5-5.6; (.'.. .1.9--0..1; color, silver white to -t'-el gray: S.. grayi-b black. Comp.. sulphur. 10.7: arsenic. 46; iron, 34.3. ASPHALTUM. Mineral pitch: a mixture .,f hydro- carbons. Utah Minerals and Localities. 15 AUGITE. Aluminous variety of pyroxene. H., about li; (i., about 3.30; color, green, yellow, black. Utah mineral black. Comp., approximately silica. 47; alum- ina, 10; magnesia, 1(5; lime, 19; iron Oxides. 8. AURICHALCITE. Hydrous carbonate of copper and /inc. H., 2; G.. 3.643.64; color, pale green, verdigris green, to sky blue. S.. pale greenish or bluish. Comp., carbon dioxide. 10.1; zinc oxide. 53.2: cupric oxide. 20.8; water. 9.9. AUTUNITE. Hydrous phosphate of uranium and cal- cium. II.. 2--2.5; G., 3.5--3.1J); color, lemon yellow to sulphur yellow. S., yellowish. Comp., phosphorus pent- oxide. 15.5; uranium trioxide. 02.7; lime, 0.1; water. 15.7. AZURITE. Hydrous carbonate of copper. H.. 3.5--4; <;., 3.77--3.83; color, azure blue. Comp.. carbon dioxide. 25.0; cupric oxide. 09.2; water, 5.2. BARITE. Sulphate of barium. H., 2.5--3: (',.. 4.3-- 4.0; color, white, yellow, gray, blue red. brown; S., white. Com])., sulphur trioxide. 34.3; baryta. 05.7. BISMITE. Bismuth trioxide. G.. 4.30; color, green- ish, yellow, straw yellow, grayish white. Comp.. oxy- gen, 10.4; bismuth, "89.0. BISMUTHINITE. Bismuth sulphide. H.. 2; G.. 0.4-- 0.5; S. and color. Lead gray to tin white. Comp., sul- phur. 18; bismuth. 81.2. BISMUTITE. Basic bismuth carbonate. H.. 4--4.; G., G.80--0.90; color, white, mountain green, siskin green, straw yellow', yellowish gray; S., greenish gray to color- less. Comp., carbon dioxide. 0.50; bismuth trioxide. 90; water. 3.44. BINNITE. Sulph-arsenide -of copper. H.. 2.5--3; (!., 4.47; color, steel gray to iron black, som: times brown- ish; S., reddish brown. Comp.. sulphur, 29.8; arsenic, 31 : copper. 39.2. BIXBYITE. Oxide of iron and manganese. H.. 0--G.5; <;.. 4.94; color, brilliant black. Comp.. iron pent oxide. 47.98; manganese oxide. 42.05; cxygen. 4.38; alumina. 2.53. with small quantities of silica and titanium. BORICKITE. Hydrous phosphate of iron and cal- cium. H.. 3.5; (i., '2.0--2.7; S. and color, reddish brown. Com])., phosphorus pentoxide. 20.49; iron trioxide, 52.29; lime. 8.0; water, 19.00. , BORNITE. Sulphide of copper and iron. H.. 3; G., 4.9--5.4; color, between copper red and pinchbeck brown; S.. pale grayish black. Com])., sulphur. 28.1 ; c:ipper. 55.5; iron'. 10.4. BROCHANTITE. Hydrous sulphate of copper. II., 3.5--; G., 3.9; color, emerald green to blackish green: S.. green, paler than color. Comp.. Utah mineral, eupric oxide. 08.7: water. 12.44: sulphur trioxide. undeter- mined. BUSHMANITE. Hydrous sulphate of aluminium, manganese and magnesium. H., 1.5; G., 1.78; color. 16 Utah Minerals and Localities. white with tints of rose, green and yellow. Goinp., I'tali mineral, sulphur trioxide, 35.85; alumina, 10.40; nangane.se oxide, 2.12; oxide of magnesium, 5.94; water. 40 with traces of iron and potassium. CALCITE. Calcium carbonate. H., 3; G., 2.71; color, white and various pale shades of gray, red, green, blue, yellow, violet, also brown and black when impure, (imp., carbon dioxide, 44; lime, 56. CALEDONITE. Sulphate of lead and copper. 11.. 2.5-3; G., 6.4; color, deep verdigris-green or' bluish-green. S., greenish white. Comp.. sulphur trioxide, 17.!>: lead protoxide. 06.3; .-upric oxide, 11.8; water, 4.0. CANNEL COAL. Variety of bituminous coal; dull black or grayish black, and on distillation affording 40 to 00 per cent, volatile matter', including a large pn.- portion of oil. CARNOTITE. A hydous compound of uranium, po- tassium and vanadium. A yellowish crystalline powder occurring mixed with quartzose sand. Color, yellow. Comp., vanadium pentoxide, 20.12; uranium trioxide. (54.70; potassium oxide, 10.37; water, 5.1!); approximate- ly, with trace of iron. CARNELIAN. Red chalcedony. CALAMINE. Hydrous silicate of zinc. H.. 4.5--5; 0.. 3.40--3\,50; color, white, greenish, bluish, yellow to brown; S.. white. Comp., silica. 25; zinc oxide. (i7.r>; water, 7.5. CERARGYRITE. Chloride of silver. II., 1--1.5: G.. 5.55: cohir. pearl gray, grayish green, whitish to color- less, rarely violet blue. Comp. .chlorine, 24.7; silver. 75.3. CERVANTITE. Binoxide of antimony. 11.. 4.5: G., 4.08; color, sulphur yellow. Isabella yellow to nearly whit? or reddish white; S.. yellow to white. Comp. oxygen. 21.1; antimony. 78.!). CERUSSITE. Carbonate of lead. II.. 3--3.5: <;.. 0.40 --6.57; color, white, gray grayish black, sometimes blue or green from copper. Com])., carbon dioxide. 16.5; lead oxide. 83.5. CHALCOCITE. Cupreous sulphide. H.. 2.5- 5.8; color and S.. blackish lead gray. Comp ^0.2; copper. 70.8. CHALCOPYRITE. Sulphide of copper and iron. II.. 3.5--4; G...4.1--4.3; color, brass yellow, of t: n tarnished or irridescent; S.. greenish black. Comp.. sulphur. 35; copper. 34.4; iron, 30.5. CHALCOPHYLLITE. Basic arsenate of copper. II.. 2; G.. 2.4--2.(i; color, emerald green or grass green to verdigris green: S.. paler than color. Com])., approxi- mately arsenic pentoxide. 18; cupric oxide. 50; water. 32. CHENEVIXITE. Arsenate of copper and iron. II.. 3.5--4; G.. 3.93; color, mountain green, bluish green to greenish yellow: S.. yellowish green. Comp., arsenic Utah Minerals and Localities. pentoxide, 38.2; cupric oxide, 26.3; iron sesquioxide, 26.5; wati-r. 9. CHRYSOCOLLA. Hydrous silicate of copper. H., 2- 4; G., 2-2.38; color, mountain green, bluish green, pass- ing into sky blue and turquoise blue, brown to black when impure. S., when pure, white. Comp., silica, 34.3; copper oxide. 45.2; water. 20.5. CHALCOTRICHITE. Capillary cuprite. CHALCEDONY. Cryptocrystaline quartz. H., 7; G., 2.6--2.l>4; color, white, gravish, pale to dark brown, bluish. CHALCANTHITE. Hydrous sulphate of copper. H., 2.5; G., 2.12- -2.30; color* berlin blue to sky blue, some- times green; S., uncolored. Comp.. sulphur trioxide, 32.1; cupric oxide, 31.8; water, 36.1. CINNABAR. Sulphide of mercury. H., 2-2.5; G., 8-8.2; color, cochineal red, inclined to brownish red and lead gray; S., scarlet. Comp., sulphur, 13.8; mercury, 86.2. CLINOCLASITE. Hydrous arsenate of copper. H., 2.5-3; G., of Utah mineral, 4.36-4.38; color, blackish blue green, internally dark verdigris green; S., bluish green. Comp.. arsenic pentoxide. 29.59; cupric oxide, (12.44; water. 7.72. with traces of zinc, iron, etc. CONICHALCITE. Hydrous arsenate of copper and calcium. H., 4.5; G., 4.12; color, pistachio green, inclined to emerald green; S., same as color. Comp., Utah min- eral, arsenic pentoxide, 39.94; cupric oxide, 28.68; lime 19.79: \\atfr. 5.52; zinc oxide, 2.86, with traces of silver, iron. etc. COPALITE. An oxygenated hydrocarbon. G., 1.01-- 1.05; color, pale clear yellow to dirty gray and dirty brown. Conrp., approximately, carbon, 85.7; hydrogen, 11.47; oxygen. 2.84. COPPER. Metallic or native copper. COVELLITE. Cupric sulphide. H.. 1.5--2; G., 4.5-4.6; color, indigo blue or darker; S.. lead gray- to black, shining. Comp.. sulphur. 33.6; copper. 06.4. CORUNDUM. Oxide of aluminium. H., 9; G., 3:95-- 4.10; color, blue, red, yellow, brown, gray, to smoky white and colorless. Comp., oxygen, 47.1 ; aluminium, 52.0. CUPRITE. Cupreous oxide. H., 3.5-4; G.. 5.85-6.15; color, red of various shades, particularly cochineal red, sometimes almost black, occasionally crimson red by transmitted liirht; S., several shades of brownish red. shining. Comp.. oxygen, 11.2; copper, 88.8. DOLOlVuTE. Carbonate of calcium and magnesium. H.. 3.5-4: G.. 2.8-2.9; color, white, reddish or greenish white, rose red. green, brown, gray and black. Comp.. carbon dioxide. 47.8: lime. 30.4; magnesia, 21.7. DUFRENOYSITE. Sulph-arsenate of lead. H., 3; i8 Utah Minerals and Localities. G., 5.55- -5.57; color, blackish lead gray; S., reddish brown. Comp., sulphur. 22.2; arsenic, 20.7; lead, 57.1. ENARGITE. Sulph -arsenide of copper. H., 3; G., 4.43--4.4S; color, grayish black to iron black; S., grayish black. Comp., sulphur, 32.6; arsenic, 19.1; copper, 48.3. EPODITE. Silicate of iron, alumina and calcium. H.. 6--7; G., 3.2S--3.6; color, pistachio green, yellowish green to brownish green, greenish black, black, clear red and yellow, gray, white, colorless rarely. Comp., approximately, silica, 39; alumina, 25; iron oxide, 25; lime, 24; water. 2. EPSOMITE. Hydrous magnesium sulphate. H.. 2.5; G., 1.75; color and S.. white. Comp., sulphur trioxide, 32.5; magnesium. 16.3; water, 51.2. ERINITE. Hydrous arsenate of copper. H.. 4:5--5; G., 4.04; color, emerald green, inclining to grass green; S., green, paler than color. Comp., Utah mineral, ar- senic pentoxide, 32.07; cupric oxide. 5(5.56; water. 6.8(5. with small quantities of iron, calcium, etc. FLUORITE. Fluoride of calcium. H.. 4; G.. 3.1S : color, white, yellow, green, rose, and crimson red, violet and sky blue, brown, wine yellow, greenish blue, violet blue common, rarely red; S.. white. Comp.. fluorine. 48.9; calcium, 51.1. GALENA. Sulphide of lead. H.. 2.5- -2.75; G.. 7.4- -7.6; color and S., lead gray. Comp.. sulphur. 13.84; lead, 86.6. GILSONITE. Hydrocarbon compound. H.. 2--2.5; G., 1.06--1.07; color, brilliant black; S.. rich brown. Brittle. GLAUBERITE. Sulphate of lime and soda H.. 2.5--3J -G., 2.7--2.8S; color, pale yellow or gray, sometimes brick red. Comp.. sulphur trioxide, 57.6; lime. 20.1; soda. 22.3. GOLD. Native gold. GOSLARITE. Hydrous sulphate of zinc. H.. 2.5-3: G., 1.9-2.1; color, white, reddish, bluish, yellowish, Comp., sulphur trioxide. 27.9; zinc oxide. 28.2; water. 43.9. GRAPHITE. Carbon, often impure from mixture of clay, iron, etc. H., 1--2; C... 2.09--2.23; color, iron black to steel gray. GROSSULARITE... Calcium-aluminium garnet. H. 6.5--7.S; G., 3.55--3.66; color, white, pale green, amber and honey yellow, wine yellow, brownish yellow, cinna- mon brown, pale rose red. rarely, emerald green from presence of chromium. Comp.. silica. 40; alumina. 22.7: lime. 37.3. GUMMITE. Altered uraninite of doubtful composi- tion. H.. 2.5--3; <;.. 3.9--4.20; color, reddish yellow to orange or hyacinth red. reddish brown; S.. yHlmv. Con- tains a larse percentage of uranium trioxide. GYPSUM. Hydrous sulphate of calcium. TI.. l.:>--2: G.. 2.31--2.32; color, usually white, sometimes gray, llc-h red. honey yellow, ochre yellow, blue, impure variitic- Utah Minerals and Localities. 19 often black, brown, red or reddish brown; S., white. Comp.. sulphur trioxide, 46.6; t lime, 32.2; water, 20.9. HALITE. Rock salt. Chloride of sodium. H., 2.5; G., 2.1--2.6; color, white, reddish, bluish, purplish. Comp., chlorine, 39.4; sodium, 60.6. HEMATITE. Iron sesquoxide. H., 5.5--6.S; G., 4.9-- 5.3; color, dark steel gray or iron black, when earthy, red; S.. cherry red or reddish brown. Comp., oxygen, 30; iron, 70. HESSITE. Telluride of silver. H., 2.5-3; G., 8.31 -- 8.89; color, between lead gray and steel gray. Comp.. tellurium. 36.7; silver, 63.3. HYALITE. Variety of opal. Color, clear colorless, brownish or reddish. See opal. ICELAND SPAR. Transparent, doubly refracting cal- cite. JAROSITE. Hydrous sulphate of iron and potassium. H.. 2.5--3; G.. Utah mineral, 3.16; color, yellow, yellow- ish brown, clove brown, to nearly black; S., yellow, shining. Comp.. Utah mineral, sulphur trioxide. 28.93; iron >, squioxide, 51.16; potassium. 9.5; water, 10.24. JASPER. Quartz colored with iron oxides. H., 7; G., 2.60; color, red, brown, gray, yellow, blackish, green, or banded in. various colors. KAOLINITE. Hydrous silicate of aluminium. H.. 2- -2.o: G.. 2.6--2.G3; color, white, grayish white, yellow- ish, sometimes bluisn or reddish. Comp.. silica, 46.5; alumina. 39.5; water, 14. LEADHILITE. Sulpho-carbonate of lead. H., 2.5; G., 6.26--6.44; color, white, yellow, gray, greenish; S., uncolored. Comp., sulphur trioxide. 7.4; carbon dioxide, S.2: had oxide, 82.7; water. 1.7. LETTSOMITE. Hydrous sulphate of copper and aluminium. Color, clear smalt blue, passing into sky blue. C'omp.. Utah mineral, sulphur trioxide, 12.60; alumina. 15.45; cupric oxide, 49.54; water, 21.50, with a little iron. LIMONITE. Hydrous sesquioxide of iron. H.. 5-5.5; G.. (i.3--(i.4. coin- of fracture, various shades of brown, commonly dark when earthy, brownish yellow, ochre yellow; S.. yellowish brown. Comp.. oxygen, 25.7; iron, 59.8; water'l4.5. LINARITE. Hydrous sulphate of copper and lead, II.. 2.5: G.. 5.5-5.45: color, deep azure blue; 8.. pale blue. Comp.. sulphur trioxide. 20; lead oxide, 55.7; eupric oxide. 19.8; water. 4.5. LODESTONE. Magnetite, highly magnetic, or exhib- iting polarity. LUCKITE. Variety of melanterite. Comp.. sulphur. trioxide. 20.3; iron protoxide. 21.7; manganese oxide, 1.9: water. 42.2. with small quantities of magnesium, calcium, etc. MAGNETITE. Sesquioxide and protoxide of iron. H., Utah Minerals and Localities. 5.5--G.5; G., 5.16--5.18; color, iron black; S., black. Coinp., oxygen, 27.6; iron, 72.4. MALACHITE. Hydrous carbonate of copper. H.. 3.5 --4; G.. 3.0--4.3; coloV, bright green; S., paler than color. Comp., carbon dioxide, 10.9; cupric oxide, 71.9; water, 8.2. MALLARDITE. Hydrous sulphate of manganese. Colorless. Comp., sulphur trioxide, 28.9; manganese protoxide. 25.6; water, 45.5. MANGANITE. Hydrous manganese oxide. H., 4; G., 2- -4.44. Color, dark steel gray to iron black. S., red-' dish brown to nearly black. Comp.. o.xyg. n 27.3. man- ganese 62.4, water 10.3. MARTITE. Iron sesquioxide in octahedral form, sup- posed to be pseudomorphous after magnetite or pyrite. MELACONITE. Black cupric oxide. H., 3-4 ; '.. r,.S2 --6.25; color, steel or iron gray in scales; wh.n earthy black or grayish black, and ordinarily soiling the fingers when massive or pulverulent. Comp.. oxygen. 2 || .2: copper, 79.8. MELANTERITE. Hydrous ferrqiM sulphate. II.. 2; G.. 1.89--1.90; color, various shades of- green to white. Com])., sulphur trioxide, 28.8; iron protoxide, 25.9; water. 45.3. MIMETITE. Chlor-arsfnate of lead. H.. 3..> : <:.. 7-- 7.25; color, pale yellow to brown; color Utah mineral, white, colorless, pale yellow to orange yellow; S., white or marly so. Comp.. arsenic pentoxide. 2:5/2: lead prot- oxide. 74.9; chlorine. 2.-1. MINIUM. Oxide of lead. H.. 2--3: G.. 4.(i: COlQT, vivid red mixed with yellow: S.. orange yellow. Comp.. oxygen, 9.4; lead. 90.6. MIRABILITE. Hydrous -...dinni -ulphate. 11.. 1.5--2: G.. 1.481; color, white. C nip., sulphur trioxide. 24. s ; M>da. 19.3: water. 55.9. MIXITE. 1 Iv,lrou> ar-enate of copper and bismuth. H., 3--4; G., 3.79; color, emerald green to bluish green. fale green or whitish; S., lighter than color. Comp.. "tali mineral, arsenic pentoxide. 28.79; bismuth tri- oxide, 11.18; cupric oxide, 43.89: /.inc oxide. 2.7(1. \\.th traces of iron, calcium, prospliortis ami silica; MOLYBDENITE. Molybdenum disulphide. H.. 1 1.5; G., 4.7--4.8; color, pure lead gray: S.. bluish grav on paper; on porcelain, slightly greenish. Com]).. s\il- phur. 40; molybdenum, GO. MOLYBITE. Oxide of molybdenum. 49--4.50. Color, straw yellow, yellowish Oxygen 33.3. molybdenum till. 7. MONAZITE. Phosphate of cerium mine; (i.. 4.9--5.3. Color, hyacinth red. clove In vellowish lirown. MOSS AGATE. ( naleedony filled with dendritic or moss-like forms of manganese or magnetite. MUSCOVITE. :\iainlv an orthosilieaie of nluminium Utah Minerals and Localities. and potassium. H., 22.5; G., 2.76-3; color, gray, brown, hair brown, pale green, violet, yellow, dark olive green, colorless, rarely rose red; S., uncolored. Comp., >inca. 45.2; alumina, 38.5; potash, 11.8; water, 4.5. OBSIDIAN. Volcanic "lass. Comp.. silica, usually microlitic. OLIVENITE. Hydrous arsenate of copper. H., 3; G., 4.1 --4.4; col;;r, various shades of olive green passing into lock, >iskin. pistachio, and blackish green, liver and Wood brown, straw yellow, grayish white, white, va- rious shades of red; S.. olive green to brown. Comp., l.'tah variety (wood copper), arsenic pent oxide, 40.5; cupric oxide, 55.40; water, 3.39. OLIVINE. Silicate of magnesium and iron. H.. 6.5- 7; G.. 3.27-3.57 ; color, olive green, sometimes brownish, grayish red. grayish green; S., uncolored, rarely yellow- ish. Com])., approximately, silica, 42.30; magnesia. 51.40: iron oxide. 5.1; with traces of alumina, calcium, etc. ONOFRITE. Sulpho-selenidc of mercury. H., 2.5; G., 7.98--8.09; color and S., blackish lead gray. Comp., rtah mineral, sulphur, 11.68; selenium. 4.58: mercury, 81.93; with traces of zinc and manganese. OPAL. Hydrous silica. H., 5.5-0; G., 1.9-2.3; when pure. G.. 2.1 --2.2; Utah mineral mostly the ordinary milky opal, without fire. ORPIMENT. Arsenic trisulphide. H., 1.5-2; G., 3.4- 3.5; color, lemon yellow of various shades; S., paler than color. Como., sulphur. 39; arsenic, til. . . ORTHOCLASE. Silicate of aluminium and potassium. H.. 6; G., 2.57; color, white, pale yellow, flesh red. gray, rarely green, colorless, S., uncolored. Comp., silica. ilica. 1.92: insoluble. 4.08. Utah Minerals and Localities. PROSOPITE. Hydrous fluoride of aluminium and cal- cium. H., 4.5; G., 2.88-2.89; color, white, grayish, color- less. Utah mineral, bluish white to turquoise blue. Comp., Utah mineral, fluorine, 29.95; calcium, 16.85; aluminium, 22.74; wateTr, 16.12; oxygen, 14.34. PROUSTITE. Sulph-arsenide of silver. H., 2-2.5; G., 5.57- -5.64; color, scarlet vermilion; S., like color, inclined to red. Comp., sulphur, 19.4; arsenic, 15.2; sil- ver, 65.4. PRASE. Dull leek green quartz. PYRARGYRITE. Sulph-antimonide of silver. H., 2.5; G., 5.57--5.S6; color, dark red or black to grayish black, by transmitted light deep red; S., purplish red. Comp., sulphur, 17.8; antimony, 22.3; silver, 59.9. PYRITE. Iron di-sulphide. ' H., 6-6.5; G., 4,95-5.10; color, pale brass yellow; S., greenish black or brownish black. Comp.. sulphur, 53.4; iron, 46.6. PYROLUSITE. Manganese dioxide. H., 2-2.5; G., 4.69-4.86; color, iron black, dark steel gray, some- times bluish; S., black or bluish black, sometimes sub- metallic. Oomp., manganese oxide, 79.14; oxygen, 17.27; water, 2.33, with traces of calcium, etc. PYROMORPHITE. Phosphate and chloride of lead. H.. 3.5-4; G., 6.5-7.1; color, green, yellow, brown, gray- ish white, white, wax yellow, orange yellow; S.. white, sometimes yellowish. Comp.. phosphorus pentoxide, 15.7; lead protox'ide. 82.2; chlorine. 2.6. PYROPE. Magnesia alumina garnet. H.. 7-7.5: <;.. 3.70--3.75; color, deep red to nearly black, orange brown, purplish red. Comp.. silica. 44.8; alumina. 25.4; mag- nesia, 29.8. QUARTZ. Silicon dioxide. H.. 7: G.. 2.00-2.65; color- less when pure, often various shade-* of yellow, red. brown, green, blue, black: S.. white when pure; if im- pure, often of same color, but paler. Comp.. oxvg. n. 53.3; silicon. 46.7. REALGAR. Arsenic mono-sulphide. H.. 1.5-2: (i., 3.556; color, aurora red to orange yellow: S.. orange red to aurora red. Com))., sulphur. 29. 9: arsenic. 70.1. RHODOCHROS1TE. Manganese protocarbonate. II.. 3.5-4; G., 3.45-3.60 and higher; color, various shades of rose red, yellowish gray, fawn colored, dark red, brown; S., white. Comp., carbon dioxide, 38.3; manga- nese protoxide, 61.7; iron carbonate frequently present, and carbonates of calcium, magnesium, zinc, and rarely cobalt." SATIN SPAR. Finely fibrous variety of gypsum, with pearly opalescem*?. SCORODITE. Hydrous ferric arsenate. H.. 3.5-4: G.. 3.1--3.3; color, pale leek green or liver brown: S.. white. Comp.. arsenic pcntnxide. 4!).S; iron sesquioxide. 34.6; water. 15.6. SELENITE. Crvstali/nl -\ p-uin SILVER. Xativi. silver. Utah Minerals and Localities. 23 SMITHSONITE. Carbonate of zinc. H., 5; G.. 4.30- - 4.45; color, white, grayish, greenish, brownish, some- times brown, green, blue green or yellow; S.. white. Comp.. carbon dioxide. 35.2; zinc protoxide, (54.8. . .SPHALERITE. Sulphide of zinc. H.. 3.5--4; G., 3.9--4.1; color, yellow, brown, black, red, green to white, when pure, nearly colorless; S., brownish to light yellow, and white. Comp.. sulphur, 33; zinc. 67. STIBNITE. Sulphide of antimony. H.. 2; G., 4.52-- 4.(>~2: color and S., lead gray, inclined to sieel gray. Comp. ..sulphur, 28.G; antimony, 71.4. STEPHANITE. Sulph-antimonate of silver. H., 2- 2.o; (i.. 6.2--G.3; color and S., iron black. Comp.. sulphur 10.3; antimony. 15.2; silver. 68.5. SPHERULITES. Globular concretions consisting of orthoclase of a light gray color, and in the Utah obsi- dian having a radiating fibrous structure. TETRADYMITE. Telluride of bismuth. H., 1.5--2; (i.. 7.2--7.6; color, pale steel gray. Streak soils paper. Comp.. approximately tellurium. 48; bismuth, 52. TETRAHEDRITE! Sulph-antimonate of copper. H., 3.5- -4; G.. 4: 4- -5.1; color, between flint gray and iron black; S.. like color, sometimes inclined to brown and cherry red. Comp.. sulphur, 23.1; antimony. 24.8; cop- per. 52.1. TIEMANNITE. Mercuric selenide. H.. 2.5; G., Utah crystals. 8.30- -8.47; color, steel gray to blackish lead gray; S.. nearly black. Comp., Utah mineral, selenium 29.19; mercury. 69.84; with traces of sulphur and cal- cium. TOPAZ. Fluo-silicate of aluminium. H., 8; G.. Utah mineral from Thomas Mts.. 3.565; color, straw yellow, wine yellow, white, grayish, greenish, bluish, reddish. Utah mineral sherry colored, colorless, white, grayish, black; S.. uncolored. Comp., Utah colorless crystals, silica. 31.93; alumina. 56.26; fluorine. 20.37; water', 0.19; less 0.8.58. TOURMALINE. A complex silicate of boron and aluminium. H.. 7--7.S: G.. 2.98--3.20; color, black, brown- ish black, bluish black, most common, sometimes rich shades of blue, green, red, rarely white or colorless. Sometimes red internally and green externally, or band- ed in various shaues of colors mentioned. TRAVERTINE. Limestone deposited in beds from calcareous solutions, usually banded in various colors, such as lemon yellow, orange yellow, brown, black, greenish, grayish. Frequently contains a small amount of silica. TSCHERMIGITE. Hydrous sulphate of aluminium and ammonium! H.. 1--2: G.. 1.50; color, white. Comp., ammonium sulphate. 14.6: aluminium sulphate. 37.7: water. 47.7. TYROLITE. Hydrous arsenate of copper. H.. 1--1.5; Utah Minerals and Localities. G., 3.02- -3.09; color, pale apple green, green and verdigris green, inclining to sky blue; S., paler than color. Comp., Utah mineral, arsenic pentoxide, 28.78; cupric oxide, 45.52; calcium oxide, as an impurity, 6.84; water, 17.26; with small quantities ot zinc, magnesia, etc. URANINITE. Uranate of uranyl. H., 5.5; G., 9-9.7; 'color, grayish, greenish, olive green, velvet black; S., brownish black, grayish, olive green, a little shining. Rich in uranium, and usually containing the rare metals, zirconium, lanthanum, yttrium, and sometimes small quantities of nitrogen and lead. UTAHITji. Hydrous sulphate of iron. Color, orange yellow, with silky lustre. Comp., sulphur trioxide. 28.45; iron sesquioxide. 58.82; water, 9.35; arsenic pentoxide, 3.19. VARISCITE. Hydrous phosphate of aluminium. H., 4; G., 2.408; color, deep emerald green, bluish green to colorless. Comp., Utah mineral, phosphorous pentoxide, 44.40; alumina, 32.65; water, 22.95. VESUVIANITE. A basic calcium-aluminium silicate of uncertain formula. H.. 6.5; G., 3.3S--3.45; color, brown to green, occasionaly sulphur yellow, and pale blue. S. V ii it '. WARDITE. Hydrous phosphate of aluminium. H., 5; G., 2.77; color, green, bluish green; S.. whito. Comp., phosphorus pentoxide. 34.46; aluminium trioxide. 38.2.1; sodium oxide, 5.98; magnesium oxide. 2.40; with small quantities of copper, iron and potassium oxides, '.vah-v 17.87. ' WHEELERITE. A yellowish resin, resembling amber. Melts at 154 degrees. Comp.. about, carbon, 73.:)7; hy- (Lugen. 7.95: oxygen, undetermined. WOLLASTONITE. Calcium meta-silicate. H.. 4.5-5; G.. * 2. 82.9; color, white inclined to gray, yellow, red, or brown; S., white. Comp.. silica. 51.7; iime. 49.3. WULFENITE. Molybdate of lead. H.. 2.75-3; G., 6.7-7; color, wax yellow, passing into orange yellow, siskin and olive green, yellowish gray, grayish white to nearly colorless, brown, also orange to bright red; 8.. white. Comp., molybdenum trioxide. 39.3: lead oxide, 60.7. WURTZILITE. Hydrocarbon compound. H., 2-3; G. 1.03; color, jet black, brilliant, in very thin plates deep red by transmitted light. Somewhat seetilc. and thin shavings show some elasticity. ZEUNERI'i^. Arsenate of copper and uranium. H., 2-2.5; G.. 3.2; color, grass green to emerald and apple green, greenish yellow. Comp., arsenic pentoxide, 22.3: uranium, trioxide, 56; eupric oxide, 7.7; water, 14. ZINCITE. Zinc oxide. H., 4-4.5; G., 5.43-5.7: S.. or- ange yellow; color, deep red. also orange yellow. Comp.. oxygen. 19.7; zinc. 80.3. UNIVERSITY OF CALIFORNIA LIBRARY Los Angeles This book is DUE on the last date stamped below. UCLA/PS INTERLIBRARY JAN 2? UE TWO WEEKS FROMl fiLC'Q NON-RENEW/ifiLE fB 17-93 09 1994 LOANS 993 Ait Wilfley"- Table Concentration 1 69 SonUi West, Temple St,. Salt Lake City, Utah Binder Gaylord Bros., Inc. Makers Stockton, Calif. PAT. JAN. 21, 1908 L 006 556 UC SOUTHERN REGIONAL LIBRARY FACILIP TN24 USB 5 1902 Geology Library