 | | Journal (article/letter/editorial) | | Department of Geology and Geography Pyrargyrite Downloaded by [New York University] at 17:35 07 October...October 2014 Fresniflo, Zacatecas, Mexico B x years ago this column featured proustite, an arsenic ember...ember of the major ruby-silver family (Cook 1996). The species was chosen because of its unusual rarity...dominant member of the family, the antimony-analog pyrargyrite, is similarly sought, yet offers collectors somewhat...importance as an ore mineral of silver, well-crystallized specimens of pyrargyrite have been recovered from |  | | Journal (article/letter/editorial) | | University Auburn, Alabama 36849-5305 Proustite DELORES MINE, CHANARCILLO, CHILE 344 ROCKS & MINERALS I ...red of the two most familiar members of the ruby silver family. The acquisition of even a good proustite...collections or once-a-century type finds in operating silver mines. Conse quently, this much-revered mineral... pyragyrite (Ag SbS ), are commonly called the "ruby silvers." They do not form a complete isomorphous...known; proustite pseudomorphs after argentite, silver, and stephanite have been reported. Primary proustite |  | | Report (issue) | | N T I F I C A N D T E C H N I C A L S T A F F SILVER ORES BY Ha B. CRONSHAW, , P h , D . , A.R.S.M....B . CRONSHAW, B.A., PH.D., A.R.S. M. 5 s . net SILVER ORES. B y H . B. CRONSHAW, B.A., PH.D., A.R.S.M...N T I F I C A N D T E C H N I C A L S T A F F SILVER ORES BY H . B. CRONSHAW, B.A., Ph.D., A.R.S.M....supplies of minerals, especially within the Empire, new methods of usage and other commercial developments...Empire. N o attempt has been made to give details of mining or metallurgical processes. HARCOURT, Chairman |  | | Journal (article/letter/editorial) | | Downloaded by [New York University] at 08:48 19 February 2015 FEATURED lMINERAL AT THE l994 TUCSON...TERRY From antiqbi@, the quest for silver and, more recently, for silver minerals has M e n expbrers, conquerors...collectors to all comers of the world. Downloaded by [New York University] at 08:48 19 February 2015 SIL VER-the...beautiful herringbone plates from Batopilas. Silver and silver-bearing minerals are part of the nobility...more associated mining lore or history. Silver financed empires and great wars. Silver is said to have |  | | Journal (article/letter/editorial) | | Geology S ilver was one of the first metals to silver has the highest-known reflectivity of visible light...used by humans, with records Silver crystallizes in the isometof silver mines dating back at least six...commonly show cubic, octahedral, less available than gold, and from that and dodecahedra1 faces. Parallel...the When pure, the mineral is simply elemental silver (Ag). However, it Andean mineral theme of the 2003...excepof Au and Hg and, less commonly, tional Peruvian silver has been selected as this issue’s Connoisseur’s |  | | Book | | volume is dedicated is four-fold: (1) To locate by mine, deposit, or community those mineralized areas of...Co. Hematite CALERA, Shelby Co. Wavkllite CLAY COUNTY, Sec. 24. T. 19 S R., 7 E. STATUARY, Coosa Co...Co., (W. border of* Marble Crystalline TALLADEGA COUNTY Marble, (crystalline) VALLEY HEAD, DeKalb Co. Hematite...VILLAGE SPRINGS, Blount Co. Hematite WOODS COPPER MINE, Cloaburne Co. Sphalerite ARIZONA COVEI.I.ITE...Feldspar HISSOP, Coosa Co., (near) Beryl JACKSON COUNTY Hematite KENNEDYS, Clay Co., (near) Magnetite MILLERVILLE |  | | Journal (article/letter/editorial) | | 20:52 13 January 2015 Mineralogy of the Eldorado Mine YA N K E E B O Y B A S I N , O U R AY C O U N T...city in Columbia, South America, that was rich in gold and treasure. The name is also synonymous with a...a place or source of fabulous wealth in gold, and it can also be used in a metaphorical sense to indicate...the name, as almost every major mining camp had a vein, claim, or mine with that name. This article details...history, geology, and mineralogy of the Eldorado mine in the San Juan Mountains of southwestern Colorado |  | | Journal (article/letter/editorial) | | Mountain Mine (or Bulldog Mine) A Legacy Rich In Silver Creede Mining District, Mineral County, Colorado...Colorado, USA By Ken Kucera Fabulous mineral specimens from the rich Bulldog Mountain Mine grace private and...native silver in a wide array of habits and mineral associations. Also recovered from the mine was an...Rich Silver Legacy of the Bulldog Mountain Mine 7 “Close, But No Cigar” 7 The Homestake Mining Company...Treasure Chest, Only Much Larger!” 9 Almost Solid Silver - The Legendary 67 Stope 10 A “High Graders” Paradise | | | Journal (article/letter/editorial) | | Mountain Mine (or Bulldog Mine) A Legacy Rich In Silver Creede Mining District, Mineral County, Colorado...Colorado, USA By Ken Kucera Fabulous mineral specimens from the rich Bulldog Mountain Mine grace private and...native silver in a wide array of habits and mineral associations. Also recovered from the mine was an...Rich Silver Legacy of the Bulldog Mountain Mine 7 “Close, But No Cigar” 7 The Homestake Mining Company...Treasure Chest, Only Much Larger!” 9 Almost Solid Silver - The Legendary 67 Stope 10 A “High Graders” Paradise |  | | Journal (article/letter/editorial) | | Mountain Mine (or Bulldog Mine) A Legacy Rich In Silver Creede Mining District, Mineral County, Colorado...Colorado, USA By Ken Kucera Fabulous mineral specimens from the rich Bulldog Mountain Mine grace private and...native silver in a wide array of habits and mineral associations. Also recovered from the mine was an...Rich Silver Legacy of the Bulldog Mountain Mine 7 “Close, But No Cigar” 7 The Homestake Mining Company...Treasure Chest, Only Much Larger!” 9 Almost Solid Silver - The Legendary 67 Stope 10 A “High Graders” Paradise | | | Journal (article/letter/editorial) | | Mountain Mine (or Bulldog Mine) A Legacy Rich In Silver Creede Mining District, Mineral County, Colorado...Colorado, USA By Ken Kucera Fabulous mineral specimens from the rich Bulldog Mountain Mine grace private and...native silver in a wide array of habits and mineral associations. Also recovered from the mine was an...Rich Silver Legacy of the Bulldog Mountain Mine 7 “Close, But No Cigar” 7 The Homestake Mining Company...Treasure Chest, Only Much Larger!” 9 Almost Solid Silver - The Legendary 67 Stope 10 A “High Graders” Paradise |  | | Book (edition) | | YEAR 1687"—DAVID T. DAY, CHIEF OF THE DIVISION OF MINING STATISTICS AND TECHNOLOGY WASHINGTON GOVERNMENT...channels of trade, transportation and consumption, new utilizations, and recent discoveries, have, to a...most part, have been progressive. In addition to new finds of valuable deposits, many of the occurrences...has therefore seemed advisable to pre sent such new information as may bring the whole subject more nearly...exten sive deposits, such as coal and iron fields, gold belts, etc., are mentioned in general terms. 688 |  | | Report (volume) | | it helpful to refer to Survey Bulletin 507, "The mining districts of the western United States," and to...abundant, it may have been completely exhausted by mining or quarrying. Deposits of minerals of wide distribution...because they occur in sufficient quantity to warrant mining for their usual products but because they furnish...Prof. H. E. Gregory, Sheffield Scientific School, New Haven. Delaware.........Prof. B. L. Miller, Lehigh...Tangier Smith, Berkeley, Cal. New Jersey...... .Dr. H. B. Kummel, Trenton. New York.........Mr. D. H. Newland |  | | Report (issue) | | SILVER ENRICHMENT IN THE SAN JUAN MOUNTAINS, COLORADO. By EDSON S. BASTIN. INTRODUCTION. The following...forms part of a topical study of the enrichment of silver ores begun by the writer under the auspices of...made in the study of a particular topic in one district would aid in the study of the same topic in the...specimens to the ores of many camps that had been rich silver producers but had not been studied geologically...regional report, it must be remembered that for each district only such information could be used as was readily |  | | Journal (article/letter/editorial) | | m'vadla Gold, Silver, and Copper Deposits and Their 11Iclllrrerals DAVID VON BARGEN N112 W18695 Mequon...important industry in the economy of Nevada, the Silver State, since territorial times (1861) and was the...area and created the state (1864). There are 526 mining districts in the state, 60 of which produce nonmetallic... Three major mining booms have occurred in Nevada: 1860-1880 (Comstock and other silver Downloaded by...of disseminated gold). The state regained its preeminent status in precious-metal mining with the development |  | | Book | | AGRICULTURE; AND PROFESSOR OF MINERAL– oGY, GEology, AND MINING, IN THE DEPARTMENT OF SCIENCE OF the COLLEGE OF... Report upon the Geology and Mineralogy of the silver region of the Territory of Nevada, or “Washoe.”...Report for 1855. — Observations on the extent of the gold region of California and Oregon, with notices of...and of some remarkable specimens of crystalline gold. American Journal Science, vol. 20, page 72; 1855...etc. 4to. New York; H. Bailliére. Also, in vol. 5 U. S. Pacific Railroad Reports. - Silver Ores, and |  | | Report (volume) | | and abridgment of the literature from 1858, when gold was discovered, through 1957 (with a few additions...location and means of access to all the metallic mining districts in the State, as well as a large number...varieties and subspecies are known. Some descriptions of new 1ninerals, or of mineral occurrences, have later...important source material from the earliest reports of gold discoveries in 1858, through 1958. Compilation and...next trip may lead to the discovery of a new mineral or a new crystal form. He can surely use the description |  | | Report (volume) | | ....................................... 102 District of Columbia .......................................... New Hampshire........................................................... 190 201 New Jersey.............. New Mexico............................................................. New York. .........F. C. Schrader: Besides giving several thousand new localities of mineral deposits and adding more than...to refer to Geological Survey Bulletin 507, "The mining districts of the western United States," and to |  | | Report (volume) | | and Uranium Deposits of the Caribou Area, Boulder County Colorado GEOLOGICAL SURVEY BULLETIN This report...and Uranium Deposits of the Caribou Area, Boulder County Colorado By F. B. MOORE, W. S. CAVENDER, and' E...___________________________________ Gold veins. _ __ Lead-silver veins_____________________________________..._______ Uranium-bearing lead-silver veins___________________ Mine descriptions______________________...__________________ Silver mines______________ ____________________ _ Caribou mine,_____--_--________ |  | | Journal (article/letter/editorial) | | AMERICA JULY-AUGUST,1963 Nos. 7 and 8 PROUSTITE-PYRARGYRITE SOLID SOLUTIONS1 PnrBsrr,BvTourutN, 3o, U. S...Washington25, D. C. AssrRA.cr Proustite (AgaAsSr) and pyrargyrite (AggSbSr) form a complete series of solid solutions...specimens of natural ruby silvers has not revealed any examples of equilibrium two-ruby-silver assemblages. A...A specimen of pyrargyrite from Casapalca, Peru, has unitcell dimensions corresponding to a composition...Ag3AsS3, about twice the arsenic content of any pyrargyrite heretofore reported. InrnouucrroN The extent |  | | Journal (article/letter/editorial) | | EXPERIMENTS IN THE SILVER Lores ENRICHMENT OF ORES. G. RAVlCZ. INTRODUCTION. The theory of s...dealsexclusivelywith the secondaryenrichmentof silver,onlythosepapers which dealwith this subject,wholly...•77-2•7. 2 Weed, W. H., "The Enrichment of Gold and Silver Veins," Trans. /l•n. Inst.Min.t•ng.,vol.30...38, •4•, •78. 368 EXPERIMENTS IN ENRICHMENT OF SILVER ORES. 369 Cooke,7 H. N. Stokes,8 Palmer and Bastin...,of commerci,alimportance. MINE WATERS. A studyof the 'behaviorof mine watersis essentialin an in- |  | | Journal (article/letter/editorial) | | SILVER MINERALIZATION TRICT, ALFRED IN THE BOISE COUNTY, L. ANDERSON ^m) BANNER DIS- IDAHO...TuE Bannerdistrictin BoiseCounty,Idaho, is an old silver camp that flourishedfor a time and then, like so...bullion valued.at more than $2,000,000. The rich silver depositswere discoveredin I864, but most of the...Crown Point and the remainder from the Banner. Mining declinedearly in the presentcentury,and therehas...productionsinceI92I. In spite of an early-day prominence,the district has received little geologicalattention. Veins |  | | Book | | K FIELD GUIDE to the GEMS and MINERALS of MEXICO (Exclusive of Baja California) A guide to the...Spanish-English, English-Spanish glossary of gem, mineral and mining terms. BY PAUL WILLARD JOHNSON Price $2.00 r...Information............ Driving in Mexico................... Trailcring in Mexico ............. 5 6 6 7 8 8........ A Word to the Wise ............. Jade in Mexico......................... Manto and Chimney Deposits...El Antimonio District Cananea District ...... Arizpe District ........... Nacozari District ...... Moctezuma |  | | Report (volume) | | precipitation of the metalo........ Composition of mine waters............................................of sulphide enrichment Continued. Composition of mine waters Continued. Discussion of analyses Continued............................................ Gold and silver..............................................on depth..................... Precipitates from mine waters under superficial conditions....... Oxidation...relations and minerals of silver........................... Principal silver minerals................ |  | | Report (volume) | | ..................................... Official mining districts........................................................................... Lake City district.................................................................... Ore deposits of Lake City district....................................... The lodes...sulphide enrichment minerals..................... Pyrargyrite and proustite.............................. Secondary...Secondary galena....................................... Gold................................................ |
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