 | | Report (volume) | | Deposits Of the Lawson-DumontFall River District Clear Creek County Colorado By C. C. HAWLEY and FRANK BAKER...and section of the Lawson-Dumont-Fall River district, Clear County, Colo. 2. ~ap showing major faults...faults (veins) of the Lawson-DumontFall River district projected to a horizontal plane having an elevation... CONTENTS PLATE 3. Map of the Lawson-Dumont-Fall River district, showing location of mines and distribution...and galenasphalerite veins in the Lawson-Dumont-Fall River district and adjacent areas. FIGURE 1. Index |  | | Journal (article/letter/editorial) | | occurring together) from the Calumet and Hecla mine. Excepment in the oxide zones of a variety of metal...Copper Falls mine, associations and include those containing other silver minerals, Keweenaw County. barite...major Acton mine, York County, the Deer collections. One state that is draped in a silIsle mine, and the...the Sullivan mine ver-lined history is Colorado, with a pro(King and Foord 1994). Silver duction of more...more than 750 million ounces to occurred in a mine about a mile its credit. Fine wire- and crystallized-silver |  | | Report (issue) | | PROSPECTS, LAWSON-DUMONT-FALL RIVER DISTRICT, CLEAR CREEK COUNTY, COLORADO By C. C. Hawley and Frank...Production References cited Mine descriptions « Lawson area, north of Clear Creek Larger mines in the Red...ClevelandC?) mine Flat Iron vein Mines east of Red Elephant Hill Central America (Tinker) mine-Comstock vein...Dexter mine i Johnson group Last Chance mine « r Little Giant mine Little Superior (Jack Rabbit) mine Orient...Orient mine Panama group ; Young America vein Mines west of Red Elephant Hill Amboy mine Girard mine Kanawha |  | | Journal (article/letter/editorial) | | across, on blue thomsonite. Lucky Peak Dam, Ada County; Lanny Ream specimen and photo. Figure 3 (below)...cut near Pinehurst, Adams County; Lanny Ream specimen and photo. Ada County Lucky Peak Dam, on east side...LEVYNE, PHILLIPSITE, and THOMSONITE. Adams County Alaska mine, Seven Devils district: azurite, grossular...grossular, malachite, powellite, and scheelite. Arkansas mine, Seven Devils district: grossular. Blue Jacket claim...and stilbite. Copper Bo~' mine, Seven Devils district: epidote. Helena mine (reportedly just northwest |  | | Book | | DR. J. S. Pacific Railroad Reports, and Ives' Colorado Expe dition Report. PACIFIC RAILROAD ExPLor ATIONS...steatite at Petaluma. ALABASTER. In Los Angeles County. Specimen in cabinet of the author, received from...Arizona. ANDALUSITE. Mariposa County.—In the drift of the Chowchillas River, near the old road to Fort Miller...doubtless in place in the slates a little higher up the river. Smaller and less perfect “macles” occur in the...Valley. Some of the specimens from the Chowchillas River resemble those from Lancaster, Massachusetts. - |  | | | | Peninsula, Michigan. Found in Colorado at Aspen and in Boulder County; also in several mining areas in...Telluride, Cripple Creek, and Breckenridge districts of Colorado. Also at Homestake Mine, South Dakota; in...U.S.S.R.; and at Waihi Mine, New Zealand. In Australia, at Mount Morgan Mine, from Chartres Towers district...Luning and Cuprite in Nevada; at Sulphur Bank mercury mine and at Lassen Peak, California. Sharp well-shaped... Fine crystals of dark color at Breckinridge, Colorado. Excellent crystals at Butte, Montana. Green varieties |  | | Book | | Mineralogical Record P. 0. Box 1656 Carson City, NV 89702, USA N. Bariand 90/91; British Museum (NH) London 110/111...Banat, Romania Vllb San Benito Co., California, USA Vllb Altyn Tyube, Kirgizia, USSR Vllb Miralani Hills...particularly interesting collection of miners' lamps and mine surveying instruments. Ancient and mediaeval mining...worn by mine officials of Saxony on ceremonial occasions. A special attraction is a model mine, 20m below...N. from the main railway station, landmark is a mine headframe. Tues.- Fri. 8.30-17.30 hrs.; Sat.- Sun |  | | Catalog/List | | a protected cavity, on 2x2.5 inch Axinite. Obira mine, Oita prefecture, Kyrushu Island Japan £15 BARITE...masses in quartz, manganese matrix Fort Lismeenagh, County Limerick, was in the Borland collection, bought...CASSITERITE a very rich piece, nearly p from S.Crofty Mine Cornwall,, Seager collection small 2x4 inch £10...(Hingston Down, Cornwall) 2x2 I believe this is the mine rather than the quarry itself. £6 CELESTITE dark...collection Fort Dodge Iowa USA £4 CINNABAR attractive rich red masses with rock, Almaden Spain, suitable for |  | | Book | | approximately 5 cm taii and is from the Eagle's Nest mine, Piacer County, California. Ross Beaty Collection. Photograph... . . . . .••.•. . •. . . . . . . •. . . . . Proustite-Pyrargyrite . . •• !~ ~ I~ I iij Pyrite ....... . ........................... . .... 60 Proustite-Pyrargyrite . . Tetrahedrite-Tennantite • .....References: Chace F.M. (1956) Abbreviations in field and mine geclogical mapping. Economic Geclogy, v. 51, p....silver and other silve r-bearing minerals such as proustite, pyrar- Acanthite is generally a low-temperature |  | | Report (issue) | | a short article on California diamonds. Amador County: A few small stones have been picked up near the...the towns of Volcano, Oleta and Fiddletown. Butte County: In 1853 it was observed that diamonds occurred...namely, on Webber Creek, in "Wliite Rock canyon and at Smith's Flat. Fresno County Small diamonds are...been found a few miles north of Coalinga. Nevada County A 1-^ carat stone was found at French Corral. Siskiyou...El Dorado County Forest Hill. About : sixty have been : : : Bar. Trinit}^ County : INIicroscopic |  | | Report (volume) | | Geology of Uranium Deposits in the Front Range, Colorado By P. K. SIMS and D. M. SHERIDAN With sections...mines_______________________________________ Boulder CountY----------------------------------~-----------Jamestown...Generalfeatures--------------------------------------Blue Jay mine, by R. U. King__________________________ Fair Day...mine________________________________________ Nations Treasure mine, by R. U. King___________________ Victory group...Description of principal mines-Continued Boulder County-Continued Other areas __________________________ |  | | Report (issue) | | been found in the mining the nugget Jim, Placer County, California, in 1871 by a small girl in who town...The bibliography has been updated and expanded. County lists published by Collins (1) pp. 40-64, in Murdoch...rhyolite locality in Alameda County and the lawsonite type locality Marin County, which have been completely...color" from Cherokee Flat, Butte County); and to borax ("Lake County, in large crystals in the clay of...this is the total entry!). No hint acid. Clear Lake, Lake County" foreshadows the subsequent discovery of |  | | Report (issue) | | Deposits Central Part of the Front Range Mineral Belt Colorado By P. K. SIMS and others GEOLOGICAL SURVEY PROFESSIONAL...____________________________ _ West Flack mine __________________ _ ~ercer County mine ______________ -German and Belcher...Iron mine, by A. A. Drake, Jr ___________ _ Jefferson-Calhoun vein _________________ _ Kirk mine ____..._______ _ Old Town mine, by A. A. Drake, Jr ______ _ Springdale (Gold Rock) mine, by A. A. Drake, J r...r ________________________ ---Telegraph mine ________________________ _ Wood vein ____________________________ |  | | Catalog/List | | cleaning and label preparation, have caused us to fall very far behind in our schedule of issuing bimonthly... FAXYOUR ORDER OR INQUIRY TO: INTER-USA: 408-926-6015 NON-USA: ( • )-l-408-926-6015 CALL TOPLACE ORDERS:...1/2" thick. $28.50 A 4042AGUILARITE - San Carlos Mine, Municipio de Guandjuato, State of Guanaju...P. Aguilar, the superintendent of the San Carlos Mine, the locality from which the mineral was originally...4043AIKINITEin QUARTZ - CucomungoSpring, Esmeralda County, Nevada - Aikinite, PbCuBiS3, is available from |  | | Book | | eyes, as a result of deposits in sea, lake and river water, often under the influence of biological processes...varied shapes, particularly the hexagonal prisms (proustite, dioptase). Each crystal system has a corresponding...Marcasite Gold Native Gold Silver Native Silver Proustite Arsenic Orpiment - Realgar . . Antimony - Mercury...well formed crystals, there are varieties with no clear crystalline properties at all; instead, they have...Siberia): 10 cm. 2 - Topaz (Thomas Flange, Utah, USA): 1 cm. 3 - Topaz (Virgen de Lapa, Minas Gerais, |  | | Book | | corundum, tourmaline, haematite, cinna- bar, proustite, pyrargyrite, graphite, and native elements such...tetrahedrite from bournonite, rock crystal from clear gypsum or aragonite, vesuvianite from garnet, and...travel through the mineral — it is transparent or clear. Only some minerals have their own constant colour...minerals are divided into four groups. Colourless, clear (achromatic) and transparent minerals transmit light...minerals which lose their colour for ever, e.g. proustite and pyrargyrite. Originally they are transparent |  | | Book | | quartz), corundum, tourmaline, haematite, cinnabar, proustite, pyrargyrite, graphite, and native elements such...tetrahedrite from bournonite, rock crystal fram clear gypsum or aragonite, vesuvianite from garnet, and...travel through the mineral - it is transparent or clear. Only some minerals have their own constant colour...minerals are divided into four groups. Colourless, clear (achromatic) and transparent minerals transmit light...minerals which lose their colour for ever, e.g. proustite and pyrargyrite. Originally they are transparent | | | Book | | quartz), corundum, tourmaline, haematite, cinnabar, proustite, pyrargyrite, graphite, and native elements such...tetrahedrite from bournonite, rock crystal from clear gypsum or aragonite, vesuvianite from garnet, and...travel through the mineral - it is transparent or clear. Only some minerals have their own constant colour...minerals are divided into four groups. Colourless, clear (achromatic) and transparent minerals transmit light...minerals which lose their colour for ever, e.g. proustite and pyrargyrite. Originally they are transparent |  | | Report (issue) | | Norte Cty, CA Santa Helena, Antioquia, Colombia Goto Mine, Luzan, P.I. References Wells, F. G. et al 1946... Examples Urals, USSR Duke Island, Alaska Choco River placer, Columbia 1.2 (continued) References Duparc...K-feldspar altered host rocks. Examples Climax Colorado References 10 Rb White and others, 1981 2... W, Mo, Zn, Cu, Sn, Bi, Be, As. Examples Pine Creek, California MacTung British Columbia Strawberry...F, Be, Zn, Pb, Cu, Ag, Li, Rb, Cs, Re, B. Lost River, Alaska References 16 Dobson, 1982 3.1 DEPOSIT |  | | Report (issue) | | PRELIMINARY REPORT ON THE ECONOMIC GEOLOGY OF GILPIN COUNTY, COLORADO. By EDSON S. BASTIN and JAMES M. HiLL.1 INTRODUCTION...the economic geology of Gilpin County and adjacent portions of Clear Creek and Boulder counties, Colo.,...Mountains. It is the oldest lode-mining region in Colorado, and its discovery in 1859 was the occasion of...productive portions of Gilpin County and small adjacent parts of Boulder and Clear Creek counties, all within...Gilpin County, Central City, Blackhawk, Nevadaville, Eussell Gulch, Perigo, and Apex; in Clear Creek County |  | | Report (issue) | | observed in the gold gravels at Cherokee, Butte County, and this locality, became the most noted one in...short articles on California diamonds. A Amador County: few small stones have been picked up near the...towns of Volcano, Oleta and Fiddleto^vn. Butte County: In 1853 it was observed that diamonds occurred...Thompson Flat, two miles north of Oroville. El Dorado County: A diamond weighing 1| carats was found at Forest... namely, on Webber Creek, in White Rock canyon and at Smith's Flat. Fresno County: Small diamonds are |  | | Book (edition) | | Peninsula, Michigan. Found in Colorado at Aspen and in Boulder County; also in several mining areas in...Telluride, Cripple Creek, and Breckenridge districts of Colorado. Also at Homestake Mine, South Dakota;... Also in Ural Mts., U.S.S.R.; and at Waihi Mine, Mine, New from Zealand. Chartres In Australia...and Cuprite in Nevada; at Sulphur Bank mercury mine and at Lassen Peak, California. Sharp well-shaped... and calcite are found at Joplin, Missouri. Colorado. varieties Fine crystals of dark color Excellent |  | | Book | | Oxon 0X14 4RN 711 Third Avenue, New York, NY 10017, USA Routledge is an im print o f the Taylor & Francis...QE390.I53 1989 552 \0 6 88-3015 ISBN 0-470-21072-9 (USA only) CONTENTS Preface and Acknowledgements ix...Millerite Molybdenite Niccolite Pentlandite Platinum Proustite Psilomelane Pyrargyrite Pyrite Pyrolusite Pyrrhotite...the years from teaching students in the UK and the USA and from the feedback they have provided. Professor...Chalcopyrite Millerite Cubanite Psilomelane Hematite Proustite Pyrargyrite Stannite Marcasite Niccolite Cuprite |  | | Report (issue) | | commercial borates. Lawsonite, first found in Marin county in 1895, has proved to be of great petrographic...nickel telluride, melonite, found in Calaveras County in 1867. New minerals and new mineral this is ...products. The gem-bearing pegmatites of San Diego County have aroused special masses, interest. Many ...short articles on California diamonds. A Amador County: few small stones have been picked up near the...recently, one of 21 carats near Plymouth. ; Butte County: In 1853 it was observed that diamonds occurred |  | | Report (issue) | | read Vonsen. p. 46. T'nder anatase, San Benito County, add, at end of sentence, 136. They do Louderhack...Louderhack and Bl'isdale (5) p. SSO. Fish Creek Mountains from p. 87. Celestite in Fish Mountains should...30 E... M.n., read p. 89." Under cerussite. Inyo County (1) for sec. U,. T. sec. IJ,, T. 6 S., R. 30 E...erytlirite. add Tuolumne County: erijthrite 189. arscnopyrite in the Josephine mine, Logan (16), p. p. 1...Lake County, Bradford oecurence sliould bo li.sted as 2. p. 210. !^^onazite, Itiverside County, reference |
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