 | | Journal (article/letter/editorial) | | Legacy Rich In Silver Creede Mining District, Mineral County, Colorado, USA By Ken Kucera Fabulous mineral...abundance of fine, wellcrystallized baryte, galena, sphalerite, and quartz variety amethyst. Table of Contents...Mountain Mine 7 “Close, But No Cigar” 7 The Homestake Mining Company 8 “Pirate’s Treasure Chest, Only Much Larger...Minerals Secondary Minerals Gangue Minerals Post-Mining Minerals 20 Descrip�on of Mineral Species 40 Future...Mine 41 Appendix - Geology & Mineralogy Creede District 44 References In January 1985, after producing | | | Journal (article/letter/editorial) | | Legacy Rich In Silver Creede Mining District, Mineral County, Colorado, USA By Ken Kucera Fabulous mineral...abundance of fine, wellcrystallized baryte, galena, sphalerite, and quartz variety amethyst. Table of Contents...Mountain Mine 7 “Close, But No Cigar” 7 The Homestake Mining Company 8 “Pirate’s Treasure Chest, Only Much Larger...Minerals Secondary Minerals Gangue Minerals Post-Mining Minerals 20 Descrip�on of Mineral Species 40 Future...Mine 41 Appendix - Geology & Mineralogy Creede District 44 References In January 1985, after producing |  | | Journal (article/letter/editorial) | | Legacy Rich In Silver Creede Mining District, Mineral County, Colorado, USA By Ken Kucera Fabulous mineral...abundance of fine, wellcrystallized baryte, galena, sphalerite, and quartz variety amethyst. Table of Contents...Mountain Mine 7 “Close, But No Cigar” 7 The Homestake Mining Company 8 “Pirate’s Treasure Chest, Only Much Larger...Minerals Secondary Minerals Gangue Minerals Post-Mining Minerals 20 Descrip�on of Mineral Species 40 Future...Mine 41 Appendix - Geology & Mineralogy Creede District 44 References In January 1985, after producing | | | Journal (article/letter/editorial) | | Legacy Rich In Silver Creede Mining District, Mineral County, Colorado, USA By Ken Kucera Fabulous mineral...abundance of fine, wellcrystallized baryte, galena, sphalerite, and quartz variety amethyst. Table of Contents...Mountain Mine 7 “Close, But No Cigar” 7 The Homestake Mining Company 8 “Pirate’s Treasure Chest, Only Much Larger...Minerals Secondary Minerals Gangue Minerals Post-Mining Minerals 20 Descrip�on of Mineral Species 40 Future...Mine 41 Appendix - Geology & Mineralogy Creede District 44 References In January 1985, after producing |  | | Journal (article/letter/editorial) | | The last Wild West Silver Mining Camp in Colorado T he Creede mining district, located at a lofty elevation...and rugged San Juan Mountains of southwestern Colorado. Although silver was discovered in the area in...partners found rich silver ore near East Willow Creek and staked a claim named the Holy Moses (Huston...found along West Willow Creek in veins that would later be known as the Amethyst vein system (a.k.a. Amethyst...Amethyst, Last Chance, Commodore, and Bachelor. The mining encampment grew from a small settlement to a town |  | | Report (volume) | | Minerals of Colorado: A 100- Year Record By EDWIN B. ECKEL GEOLOGICAL SURVEY BULLETIN 1 1 14 A...knowledge____________________________________ Future of Colorado mineralogy______________________________________...mineral localities and metallic mineral deposits of Colorado ________________________________ In pocket III...mineral localities and metallic mineral deposits of Colorado, has not been included in this reprint. Many of...especially Fischer and others, 1946). MINERALS OF COLORADO: A 100-YEAR RECORD By EDWIN B. EcKEL ABSTRACT |  | | Journal (article/letter/editorial) | | Microminerals in the Creede Mining District The Amethyst, Commodore No. 5 Mineral County, Colorado Unless otherwise...southwestern Colorado on the edge of the San Juan Mountains just south of where Willow Creek enters the...further north in East Willow Creek Canyon near the confluence with West Willow Creek. A disastrous fire in 1894...the Creede district was at the Holy Moses mine high above East Willow Creek, but the district did not prosper...discoveries were made along West Willow Creek on the Amethyst vein system. The Amethyst and Commodore No |  | | Journal (issue) | | Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Joseph A. Mandarino...Famous mineral localities: The Cripple Creek Mining District, Colorado . . . . . . . . . . . . . . . ...collection to the Natural History Museum of Los Angeles County. Julius Weber was well known in the mineral community...Department of the Natural History Museum of Los Angeles County has placed a high priority on building its micromount...rock and mineral shop on Route 66 near the lead-mining center of Joplin, Missouri. The Mineralogical Record |  | | Journal (article/letter/editorial) | | COLORADO e Gold Hill 0 DENVER Wulfenite Occurrences in Colorado Leadville 0 1 Tincup 03 . 4 Lake...Box 586 Ouray, Colorado 81427 CONNOISSEURS OF WULFENITE probably do not think of Colorado as a noteworthy...deposits throughout the state. A good portion of the Colorado wulfenite localities do not compare with those...last twenty-five years either as a result of new mining operations or as new discoveries in abandoned mines...following descriptions of wulfenite localities in Colorado have been compiled from U.S. Geological Survey |  | | Report (issue) | | AND ORE DEPOSITS OF THE BRECKENRIDGE MINING DISTRICT, COLORADO BY T. S. LOVERING UNITED STATES GOVERNMENT...-----Location and topography _______________ History of mining..__-._..-_-..----..__ General geology___...__-_--_--_..._ Criteria of enrichment in the Breckenriclge district......__._.._-._-..._.__.___-_._ Enrichment of...PLATE 1. Map of part of the Breckenridge district, Colorado, showing some of the principal mine workings...pocket 2. Geologic map of part of the Breckenridge district._____-__--__--_---_____________--_--------_____-__ |  | | Report (issue) | | Geology and Ore Deposits of the Front Range Colorado By T. S. LO\'ERING and E. N. GODDARD GEOLOGICAL...cooperation with the Colorado State Geological Survey Board and the Colorado Metal Mining Fund ~ oopr is...__________________________________________ _ 1 Summary of mining districts---.---------------------Introduction...hornblende gneiss ____________ _ Quartzite at Coal Creek ________________ _ Igneous rocks _____________________________...Quartz diorite and associated hornblendite_ Boulder Creek granite _________________ _ Pikes Peak granite |  | | Report (issue) | | AND ORE DEPOSITS OF THR BRECKENRIDGE DISTlliCT, COLORADO BY :b_,REDERICK LESLIE RANSOME 'f3lfWASHINGTON..._.......................... . Situation of the district. ....... ____ . __ .. __________ ................ _. ___ ....... _..... _... _..... __ .. The district. __ ... ____ .... __ ... ___ ... ___ .. ____ .... _. __ ..... __ . _.. __ ...... . History o.f mining .. ___ .. ______ .... _. ________________ . __...____ .... _____ .. CHAPTER IV.-Structnre of the district. ................... _............. _....... __ |  | Collins, Donley S., Cobban, Robert R., Foord, Eugene E., Murphy, Jack A. (1989) Bibliography for update and revision of U.S.G.S. Bulletin 1114, Minerals of Colorado -- a 100 year record, by Edwin B. Eckel, Part A - Paper copy --Bibliography data file disks. Open-File Report Vol. 1989 (89-206) US Geological Survey doi:10.3133/ofr89206a | Report (issue) | | Survey Denver, Colorado Department of Geology, Denver Museum of Natural History Denver, Colorado NOTE FOR...revision of U.S.G.S. Bulletin 1114, Minerals of Colorado A 100 year record, by Edwin B. Eckel By Donley...Prepared in cooperation with Friends of Mineralogy - Colorado Chaptar, and the Denver Museum of Natural History...references dealing with the mineralogy of the state of Colorado. It is part of a more than 10 year effort to update...and revise U.S.G.S. Bulletin 1114, Minerals of Colorado: A 100 year record, by Edwin B. Eckel (1961). |  | | Report (issue) | | Index of the Geology of the Creede Mining District and Vicinity Colorado By Daniel O. Hayba and Constance...bibliography and index of the geology of the Creede mining district and vicinity was prepared in support of the...information pertaining to the geology of the Creede district. Thus, references range from papers dealing entirely...also PALEONTOLOGY and PALEOENVIRONMENT) GEOLOGY, District GEOLOGY, Regional GEOMORPHOLOGY GEOPHYSICAL SURVEYS...Stable and Radiogenic MAPS MINERAL DEPOSITS, Creede district (see also FLUID INCLUSIONS; ISOTOPES; and ALTERATION) |  | | Report (issue) | | GEO LOGY AND GOLD DEPOSITS OF THE CRIPPLE CREEK DISTRICT, COLORADO BY \V ALDEl\;IAR LINDGREN A:'\D ... . . . . . . . First geological survey of the district .............................. _• . . . . . ..................... Geological structure of the district ............... _................... __ .. _....• _. _•••• _••• _. _••• ___ . ____ 43 43 Cripple Creek granite ... ----.-----------------.----- _____________..._____________ . _. __ ... __ •.. Spring Creek granite ......•...•... _... __ . _____ •• _.• _• _•. ___ |  | | Report (volume) | | ....................................... 48 Sphalerite...........:....................................rhombic crystal faces, from Nugget mine, Gilpin County, Colo.-................... II. A, Wedge-shaped...rhombic crystal faces, from Nugget mine, Gilpin County, Colo.............................. IV. A, Hiibnerite...Rollinsville, Colo.; B, Hubnerite crystals from Regan mining district, 35 miles north of Osceola, Nev..............Idaho; B, Scheelite with hiibnerite and quartz from vein 4 miles north of Dragoon, Ariz................. |  | Bethke, P. M., Rye, R. O. (1979) Environment of ore deposition in the Creede mining district, San Juan Mountains, Colorado; Part IV, Source of fluids, from oxygen, hydrogen, and carbon isotope studies. Economic Geology, 74 (8) 1832-1851 doi:10.2113/gsecongeo.74.8.1832 | Journal (article/letter/editorial) | | Ore Depositionin the CreedeMining District, SanJuan Mountains,Colorado' Part IV. Sourceof Fluids from Oxygen...silver-basemetal vein depositsat Creede was measuredby direct analysis of inclusionfluidsin sphalerite,quartz...determinationsgiven in parentheses): Mineral Sphalerite Quartz Illire aDn2o %o -81 to -54 (4) -97 to...valuesof fluidsassociated with the formationof sphalerite, quartz,illite/chlorite,andcarbonate mineralsdiffer...suggestthat waters from three coexistingreservoirsfed the vein system alternatelyandepisodically duringvein formation |  | | Report (issue) | | Economic Geology of the ·central City District .Gilpin County, Colorado By PAUL K. SIMS, A. A. DRAKE, ]R....Economic geology of the Central City district, Gilpin County, Colorado, by Paul K. Sims, A.A. Drake,. Jr...Central City district, Gilpin County, Colorado. 1963. (Card 2) 1. Geology, Economic-Colorado-Central City...City district. 2. Ore-deposits-Colorado-Central City district. 3. Mines and mineral re. sources-Colorado-Central...sources-Colorado-Central City district. I. Drake, Avery Ala, 1927joint author. II. Tooker, Edwin Wilson, 1923- joint |  | Doe, B. R., Steven, T. A., Delevaux, M. H., Stacey, J. S., Lipman, P. W., Fisher, F. S. (1979) Genesis of ore deposits in the San Juan volcanic field, southwestern Colorado; lead isotope evidence. Economic Geology, 74 (1) 1-26 doi:10.2113/gsecongeo.74.1.1 | Journal (article/letter/editorial) | | Depositsin the SanJuanVolcanicField, Southwestern Colorado LeadIsotopeEvidence B. R. DOE,T. A. STEVEN,M....derived from them. The fact that some of these vein ores are now in Cenozoicigneousrocks indicatesthe...other deposits (Summitville, Jasper, Red Mountain district) have values of 2ø•Pb/•ø4Pbsimilar to those of...central San Juan caldera complex,and of the Baughman Creek center appear to contain significant componentsderived...have lead isotopiccompositions that are portant mining districts. Studies of lead in the as- more radiogenicthan |  | | Book | | long (Marty, 2004 ). AFRICA widely in Litchfield County, where good crystals were taken from quartz veins...region (Brunet, I 977b ). NEW YORK Amity, Orange County. At many isolated collected sites between the towns...Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series of incompletely...Litchfield County. Ilmenite masses and crystals from somewhere near Washington, Litchfield County, were described...Lake Road occurrence, Faraday Township, Hastings County. In fall 1994, Dan and Shelley Lambert extracted |  | | Book | | at aks SUMMIT AGold Rush History of Summit County, Coldrado By Mary Ellen Gilliland Copyright 1980...Press Box 499 Silverthome, Colorado 80498 iv For the people of Summit County, past and present, and...Nineteen Summit Map Bibliography Index This Is Summit County Before the Rush Began: The Rocks That Made the...Silver Town Mining: The Pick, Pan and Blasting Powder Route to Riches Breckenridge Mining: Gulches of...of Gold Ten Mile Mining: Storied Silver Canyon Montezuma Mining: Treasure Atop the Rockies Summit Ghost |  | | Journal (article/letter/editorial) | | volcanic rocks, but can also be formed as hydrothermal vein varieties or as silica accumulation during diagenesis... Other types of agate may occur as hydrothermal vein agate or due to silica accumulation in sediments...rocks (basic and acidic volcanic rocks, hydrothermal vein agates, agates from sedimentary host rocks—see Table...Axio Imager A1m microscope (ZEISS, Thornwood, NY, USA). These investigations were completed by SEM studies...excimer laser probe (Thermo Scientific, Waltham, MA, USA) [70]. Additional measurements were made with conventional |
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