 | | Journal (article/letter/editorial) | | Mineralization in the Comstock District, Nevada DONALD M. HUDSONâ 1540 Van Petten Street, Reno, Nevada 89503 Abstract...metal deposits of the world-renowned Comstock district of western Nevada constitute one of several superimposed...superimposed Miocene hydrothermal systems. In the district, Mesozoic metasedimentary and igneous rocks are...kaolinite alteration exposed at the periphery of the district may be linked to preore alteration near the paleowater...and in the lower parts of orebodies in the Comstock lode, but it was deposited in the upper parts of |  | | Journal (article/letter/editorial) | | has been an important industry in the economy of Nevada, the Silver State, since territorial times (1861)...area and created the state (1864). There are 526 mining districts in the state, 60 of which produce nonmetallic...(Tingley 1998). Three major mining booms have occurred in Nevada: 1860-1880 (Comstock and other silver Downloaded...precious-metal mining with the development of low-grade, large-tonnage mines. I n 1997 Nevada ranked first...percent, respectively, of total U.S. production. Nevada also produced 148 million pounds of copper, 4 percent |  | | Journal (article/letter/editorial) | | Relations in the Comstock Lode PETER G. VIKRE ASARCO, Inc., 510 East Plumb Lane, Reno, Nevada 89502 Abstract...Comstockdistrict 15 mi (24 km) southeastof Reno,Nevada,formed 13.7 Ma in Mioceneeruptiverocksof the Alta...consists of quartz,electrum,silverminerals(mainly acanthite),pyrite,basemetalsulfides, andminoramounts of...at the northend of the lode (CedarHill) to <235ĂžC at the southend of the lode (AmericanFlat), contained<1...additional bonanzas awaitdiscovery alongunexplored Comstock faultsegments withindeclining palcothermalgradientsto |  | | Journal (article/letter/editorial) | | 08:10 15 April 2015 T he discovery of the Comstock lode in the early 1850s was a long time in coming...gold fields of California on a trail from Salt Lake City, Utah. A few of these â49ers, while pausing for...including Sandy Bowers, Joe Platos, and Henry Comstock, staked claims. By the time Pat McLaughlin and...astonishment when out of nowhere appeared Henry Comstock, who, upon examination of the pale dust, began...quickly, so OâRiley and McLaughlin agreed to take in Comstock and Penrod as equal partners. Unknown to the men |  | | Journal (article/letter/editorial) | | western andesite assemblage and include the Comstock Lode, Tonopah, Goldfield, Aurora, Bodie, Paradise...the United States since the discovery of the Comstock Lode in 1859. Production from these deposits through...(Long et al., 1998). Famous districts include Comstock Lode, Tonopah, Goldfield, Aurora, and Bodie, and...showed that lowsulfidation deposits in northern Nevada could be divided into two subtypes based on their...ve Ri Yellowstone Hot Spot Wyoming 0 Ma 40° Nevada S ie GREAT BASIN rra NNR Utah Ne da va California |  | | Report (issue) | | Properties: Tenacity: Considerably more brittle than acanthite. Hardness = âŒ2 VHN = âŒ20 (15 g load) D(meas.)...97 Total 99.3 100.1 100.0 100.00 (1) Comstock Lode, Nevada, USA; by electron microprobe. (2) Zmeinogorsk... in part of supergene origin. Association: Acanthite, AuâAg alloy, chlorargyrite, naumannite, quartz...Distribution: In Indonesia, from Tambang Sawah, Benkoelen district, Sumatra [TL], and on Java, at the Pongkor AuâAg...AuâAgâSnâW deposit. In the USA, in Nevada, from the Comstock Lode, Virginia City, Storey Co. [TL], at the Bullfrog |  | Bindi, Luca, Stanley, Christopher J., Seryotkin, Yurii V., Bakakin, Vladimir V., Pal'yanova, Galina A., Kokh, Konstantin A. (2016) The crystal structure of uytenbogaardtite, Ag3AuS2, and its relationships with gold and silver sulfides-selenides. Mineralogical Magazine, 80 (6) 1031-1040 doi:10.1180/minmag.2016.080.041 | Journal (article/letter/editorial) | | crystal from the type locality, the Comstock lode, Storey County, Nevada (USA). The study revealed that the...uytenbogaardtiteâfischesserite series Ag3Au(S2âxSex) and acanthiteânaummanite series Ag2(S1âxSex) are compared. K...Sawah, Benkoelen district, Sumatra (Indonesia), the Comstock lode, Storey County, Nevada (USA) and Zmeinigorsk...(Russia). The mineral forms fine intergrowths with acanthite and Ag-rich gold. A single-crystal X-ray study...tetragonal cell with a = 9.76, c = 9.78 Ă
(Comstock lode) and a = 9.68, c = 9.81 Ă
(Tambang Sawah) to |  | | Report (issue) | | MINERALS OF NEVADA MINERALS OF NEVADA Peer Hen By CASTOR oan eGORY.C.oFER DOCK NEVADA AND BUREAU... UNIVERSITY Reno & Las Vegas OF NEVADA PRESS GEOLOGY Nevada Bureau of Mines and Geology Special...University of Nevada Press, Reno, Nevada 89557 USA Copyright © 2004 by University of Nevada Press Photographs...otherwise noted Map of Mining Districts and significant mineral occurrences of Nevada by Nevada Bureau of Mines...Cataloging-in-Publication Data Castor, Stephen B, Minerals of Nevada / Stephen B. Castor and Gregory C. Ferdock.â Ist |  | | Journal (article/letter/editorial) | | 2016 Figure 2. An exceptionally sharp 4.2-cm acanthite paramorph after argentite from the Rayes mine...1878); the Baker quarry near Billmeyer, Lancaster County, Pennsylvania, where it occurs as an alteration...Hill occurrence in Davidson County, and the McMakin mine in Cabarrus County (Genth 1891); and mines of...of the Virgilina district, Halifax County, Virginia (Dietrich 1990). The great silver occurrences of the...abundant acanthite. Many mines of the Colorado mineral belt contained important amounts of acanthite, although | | | Report (issue) | | MINERALS OF NEVADA MINERALS OF NEVADA STEPHEN B. CASTOR and G R EGOR Y C . F E R D OC K l NEVADA BUREAU...association with the UNIVERSITY OF NEVADA PRESS Reno & Las Vegas Nevada Bureau of Mines and Geology Special...University of Nevada Press, Reno, Nevada 89557 USA Copyright© 2004 by Uni versity of Nevada Press Photographs...Districts and si gnificant minernl occurrences of Nevada by Nevada Bureau of Mines and Geology All rights reserved...-Publ ication Dat,i Castor, Stephen B. Minerals of Nevada/ Stephen B. Castor and Gregory C. Ferdock.- rst |  | | Report (issue) | | Center, Rm 1C402, 12201 Sunnse Valley Dr âą SALT LAKE CITY, Utah--Federal Bldg., Rm. 8105, 125 South State...Deposits-Part I The Goldfield Gold District, Esmeralda and Nye Counties, Nevada By ROGER P. ASH LEY The Tonopah...Precious-metal District, Esmeralda and Nye Counties, Nevada By ROGER P. ASH LEY The Republic Gold District, Ferry...Ferry County, Washington By MORTIMER H. STMTZ and ROBERT C. PEARSON The Comstock Lode Precious-metal District...District, Washoe and Storey Counties, Nevada By WILLIAM C. BAGBY and ROGER P. ASH LEY U.S. GEOlOGICAl |  | Price, Jonathan G., Henry, Christopher D., Castor, Stephen B., Garside, Larry, Faulds, James E. (1999) Geology of Nevada With excellent rock exposures in the desert, generally good access to collecting localities on public lands, and fine tourist attractions in the towns, Nevada is a wonderful state for rock and mineral enthusiasts. Rocks & Minerals, 74 (6) 357-363 doi:10.1080/00357529909605171 | Journal (article/letter/editorial) | | towns, Nevada is a wonderful state for rock and mineral enthusiasts. T he geology of Nevada is the...human history. The overall geologic history of Nevada, which spans more than 2.5 billion years (table...Many of the range-bounding faults remain active. Nevada is the third most seismically active state in the...or greater earthquake has occurred somewhere in Nevada about once every thirty years. Most faults are...(analogous to a tilted deck of cards). However, some Nevada faults are strike-slip faults, like the San Andreas |  | | Journal (article/letter/editorial) | | 100 Y E A R S OF HISTORY: NEVADA'S COMSTOCK LODE By DANA M A R T I N B A T O R Y 402 E. BucyrusSt. Crestline...Crestline, Ohio 44827 T H E COMSTOCK L O D E The Comstock Lode of Nevada, dis covered in 1859, enjoyed...a few hundred feet wide, its leading town, Virginia City, never had more than 25,000 citizens. Even during...sometimes dropped to half that. The development of the Comstock was a logical sequence to the discovery of gold...California. Gold was first discovered in Nevada in the Washoe District (then west ern Utah) in the spring |  | | Journal (article/letter/editorial) | | other silver and lead sulfosalts; silver; gold; acanthite; and a wide assortment of other sulfide minerals...Colorado occurrences include mines of Clear Creek County, particularly in the Georgetown area, where it...Colorado Central mines; elsewhere in Clear Creek County crystals and masses to 1 cm are reported from the...other silver minerals in mines of the Rico district, Dolores County, where it has been found as small hexagonal...hexagonal crystals associated with proustite and acanthite in vuggy ore on Newman Hill, and in the Revenue |  | | Report (issue) | | to 3 cm; also massive and in intergrowths with acanthite or naumannite. Physical Properties: Fracture:...Total 101.2 99.80 100.0 100.00 (1) Silver City, Idaho, USA. (2) Guanajuato, Mexico. (3) San Carlos mine...manifestly deficient in sulfur. Association: Acanthite, naumannite, silver, stephanite, proustite, pearceite...Chontalpan mine, Taxco, Guerrero. In the USA, in Idaho, from Silver City, Owyhee Co., and at the 4th of July...Fork, Custer Co.; from the Comstock Lode, Virginia City, Storey Co., Nevada; in Washington, at the L-D |  | | Report (issue) | | hydrothermal silver deposits. Association: Proustite, acanthite, silver, tetrahedrite, galena, sphalerite, pyrite...pyrite. Distribution: From many silver mining localities, typically in small amounts, and only rarely...Altyn-Topkan, Tadjikistan. In Canada, in the Cobalt district, Ontario; at United Keno Hill Mines, and fine...In the USA, in Nevada, as an important ore mineral in the Comstock Lode, Virginia City, Storey Co. In...the Archduke Victor Stephan (1817â1867), former Mining Director of Austria. References: (1) Palache, C |  | | Report (issue) | | tetrahedrite, stephanite, other silver sulfosalts, acanthite, gold, quartz, calcite, dolomite, barite. Distribution:...Republic. In the USA, in Colorado, from the Ouray district, Ouray Co.; the Gilman district, Eagle Co.; and...and the Red Mountain district, San Juan Co.; in Nevada, at Tonopah, Nye Co., Goldfield, Esmeralda Co...., and in the Comstock Lode, Virginia City, Storey Co. Fine crystals from the Husky mine, Elsa, Yukon...the many metallic bases present. Type Material: Mining Academy, Freiberg, Germany, 6867. All rights reserved |  | | Journal (article/letter/editorial) | | no other group of minerals has more associated mining lore or history. Silver financed empires and great...recovered as a byproduct of low-grade copper and lead mining. This fact, coupled with the historically low price...copper were the first). The earliest known siIver mining occurred in Cappadocia in Asia Minor and is dated...ornamentation and jewelry. Excavations at Ur, an ancient city on the Euphrates River, have recovered some extraordinary...probably reflects the fact that the earliest silver mining amounted to gathering the metal in its native state |  | | Report (issue) | | Acanthite Ag2 S c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Monoclinic, pseudo-orthorhombic...(âargentiteâ) inverts to acanthite at about 173 ⊠C; below this temperature acanthite is the stable phase...the USA, at Butte, Silver Bow Co., Montana; Tonopah, Nye Co., and the Comstock Lode, Virginia City, Storey...Storey Co., Nevada. From various mines at Cobalt, Ontario, Canada. At ChanÌarcillo, south of CopiapoÌ...of mineralogy, (7th edition), v. I, 191â192 (acanthite), 176â178 (âargentiteâ). (2) Frueh, A.J., Jr. |  | | Journal (article/letter/editorial) | | recovered from an interesting array of important mining districts; it is currently available from Mexico...arsenic in amounts up to several percent. Pynte, acanthite, polybasite, and silver pseudomorphs after pyrargyrite...reported. It occurs as an alteration product of acanthite, dyscrasite, and silver. Pyrargyrite is relatively...suggest. It is commonly associated with proustite, acanthite, tetrahedrite, stephanite, miargyrite, polybasite...However, the development of numerous gold and silver mining districts in the westem states during the latter |  | | Journal (article/letter/editorial) | | untarreplaced by various silver halides, ruby silvers, acanthite, and stephanite are known. Similarly, silver has...those containing other silver minerals, Keweenaw County. barite, fluorite, and quartz and those characterized...phenomenal specimens in major Acton mine, York County, the Deer collections. One state that is draped...Connecticut; and and nearby mines of the Caribou district, as as an accessory mineral in the are wiry masses...White Raven mine, Ward district, sey. Wire silver has been found in Boulder County (Raines 1992). Locally |  | | Report (issue) | | by secondary processes. Association: Silver, acanthite, tetrahedrite, other silver sulfosalts, calcite...Czech Republic. In the USA, in Nevada, at the Comstock Lode, Virginia City, Storey Co., in the Hecla Rosebud...Rosebud mine, Rosebud district, Pershing Co., and from the Reese River district, Lander Co.; in Idaho,... in the Poorman mine, Silver City district, Owyhee Co. In Canada, from Cobalt, Ontario. In Bolivia, at |  | | Journal (issue) | | Type Localities: NEVADA: steep northeast wall of glory hole, B & B mine, Esmeralda County CALIFORNIA: burnt... San Luis Obispo County TEXAS: Chisos furnace, Terlingua district, Brewster County The Texan material...Museum. The mineral is named for Curt N. Schuette, a mining geologist who specialized in mercury deposits....H ) 7 Status: valid Type Locality: Belmont, Nye County Further analysis of the type material showed it...German-American mining engineer. References: RIOTTE, E. N. (1867) Stetefeldit, eine neues mineral von Nevada. Berg- |  | | Journal (article/letter/editorial) | | at: No. 19, Beitucheng Western Road, Chaoyang District, 100029 Beijing, P.R. China. E-mail address:...et al. (1999) classified LS deposits of northern Nevada as type 1 LS (associated with a western andesite...important in the 600-km-long Walker Lane in Nevada (e.g., Comstock Lode), the 750-km-long Sierra Madre Occidental...Ciobanu et al., 2002; Grancea et al., 2002), Baguio district of the Philippines and Morobe goldfield of Papua...deposits also contain electrum, native gold, acanthite-argentite, and many other silver sulfosalts minerals |  | | Journal (article/letter/editorial) | | layer similar to electrum dendrites at Sleeper, Nevada (Saunders, 1994; Saunders and Schoenly, 1995)....minerals, and the reevaluation of many historic mining districts that took place in the latter half of...Evidence References Selenium-rich 1. Jarbidge 2. Comstock 1 1, 2 3. Tonopah 1, 2 4. Hog Ranch 5. Hycroft...Sandman 19. Rawhide 20. Bullfrog 21. DeLamar (Silver City) 22. Yankee Fork (Challis) 23. Cannon (Wenatchee)...Hills 3 29. Ortiz 3, 4 30. Central City 3, 4 31. Boulder County 3, 4 32. Black Hills 3, 4 33. Golden |
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Consolidated Virginia Mine, Comstock Lode, Virginia City, Comstock Mining District, Storey County, Nevada, USA