 | | Journal (article/letter/editorial) | | August 2013 BARBARA L. MUNTYAN P.O. Box 495 Ouray, Colorado 8 I427 hodochrosite, a manganese carbonate with...neverthealess re orted from localities worldwide. Rhodochrosite crystallizes in the trigonal class of the hexagonal...and occurs in a number of diverse forms. Fine rhodochrosite specimens in various habits have been found...San Luis, Argentina. Rhodochrosite has also been found in many localities in Colorado, particularly in the...it i s one of the most recognized and coveted Colorado minerals. partiY DO e the presence of a mix |  | | Journal (article/letter/editorial) | | December 2014 Creedite Cresson Mine, Cripple Creek Teller County, Colorado M uch has been written about...pigeonhole suggests that mineral-rich states, such as Colorado, should be similarly blessed with a variety of...dig deeper to uncover other minerals linked to a Colorado type-locality. The relatively rare, though at...peculiar mineral in the Colorado Rockies, but during the past decade two more Colorado localities have produced...produced excellent specimens of the mineral. A fine Colorado creedite specimen has been fittingly suggested |  | | 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) | | Museum of Nature and Science 2001 Colorado Boulevard Denver, Colorado 80205-5798 jmurphy @ dmns.org PETER...Survey MS 150, Box 25046 Federal Center Denver, Colorado 80225-0046 pmodresk @ usgs.gov Unless otherwise...to 2000) J oin us for a gemstone tour around Colorado! Our field trip takes us from east to west in...in the same way you may have toured through Colorado on a mineral collecting trip. This route, from the...gemstones are known to occur. We cannot discuss every Colorado gemstone occurrence; rather, this is a general |  | | Report (issue) | | https://archive.org/details/fluorspardeposito00Oharr COLORADO GEOLOGICAL SURVEY BOULDER R. D. GEORGE, State...State Geologist BULLETIN 18 FLUORSPAR DEPOSITS COLORADO By HARRY KAMES A. AURAND BROTHERS, STATE...-...- Governor of Colorado GEORGE UNORLING nee ee President University of Colorado VicCTOR Ct A LDERGONG...TRANSMITTAL. State Geological Survey, University of Colorado, April 29, 1920. Governor Oliver H. Shoup, Chairman...honor to transmit herewith Bulletin 18 of the Colorado Geological Survey. Very respectfully, R. D. GEORGE |  | | Journal (article/letter/editorial) | | Photographs January/February: Chalcopyrite on quartz, La Mine de Giraud, La Gardette, Bourg dâOisan, IsĂšre, France...Herkimer Diamond Mines, Inc., New port, Herkimer County, New York. Jeffrey B. Fast specimen and photo....cleavelandite, 49er Pocket, Oceanview mine, Pala district, San Diego County, California. Bill Larson specimen...photo. September/October: Gold, Mockingbird mine, Mariposa County, California. Collectorâs Edge Minerals,...Crossroads, Wilkes County, Georgia. Lisa Bennett specimen, Jeff Scovil photo. A Acanthite, Colorado, 442; Utah |  | | Journal (issue) | | Julius Weber Mamaroneck, New York COLORADO ISSUE #2 Articles Colorado locality index.............................. 323 by B. L. Muntyan Whatâs new in Colorado minerals? ...................................... Famous mineral localities: the Home Sweet Home mine ..................................................339 by M. I. Jacobson The San Juan Mountains of Colorado ..................................349 by J. A...10 cm tall, from the Yucca Hill claim, Park County, Colorado. Richard A. Kosnar specimen; photo by John |  | | Journal (article/letter/editorial) | | Pocket, Two Point claim, Pikes Peak batholith, Teller County. The Collectorâs Edge specimen, Jeff Scovil...Mail Stop 150, Box 25046 Federal Center Denver, Colorado 80225 pmodreski@usgs.gov C olorado is, of course...prohibitions on collecting or to private land or mining claims for which permission has been obtained....been written as guides to mineral collecting in Colorado. A classic, which went through three major editions...1951 version with a slightly different title), is Colorado Gem Trails and Mineral Guide, by Pearl (1951, |  | 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). |  | | Journal (issue) | | R. Kampf Natural History Museum of Los Angeles County George Robinson National Museums of Canada Arthur...SPECIMENS from the collection of the Geology Museum, Colorado School of Mines. See page 242 for a full description... All rights reserved. notes fromthej EDITOR COLORADO-III Here we are with our third special issue devoted...devoted to the mines and minerals of Colorado. As most long-time subscribers know, the first in the series...about $200 on the out-of-print market. The second Colorado issue was vol. 10, number 6 (1979), and we still |  | | Journal (article/letter/editorial) | | Home rhodochrosite specimen mine, Alma District, Central Colorado: the porphyry molybdenumâfluorine connection...sphaleriteâtetrahedriteârhodochrositeâfluorite in the Sweet Home Mine, Alma District, Colorado were originally...up until 2004, however, the mine has produced world-class rhodochrosite specimens. Some of these specimens...the nearby area; (4) a small pegmatite within the mine with an age (25.9±0.3 Ma) coincident with mineralization...Geological Engineering, Colorado School of Mines, 1516 Illinois Street, Golden, CO 80401, USA e-mail: pbartos@mines | | | Journal (article/letter/editorial) | | Home rhodochrosite specimen mine, Alma District, Central Colorado: the porphyry molybdenumâfluorine connection...sphaleriteâtetrahedriteârhodochrositeâfluorite in the Sweet Home Mine, Alma District, Colorado were originally...up until 2004, however, the mine has produced world-class rhodochrosite specimens. Some of these specimens...the nearby area; (4) a small pegmatite within the mine with an age (25.9±0.3 Ma) coincident with mineralization...Geological Engineering, Colorado School of Mines, 1516 Illinois Street, Golden, CO 80401, USA e-mail: pbartos@mines |  | | 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 . . . . . . . . . . . . . . . ...[Ba(UO2)2V2O8â5H2O] from the type locality, the Mounana mine, Franceville, Haute OgoouĂ©, Gabon. See the article...âThis is the XYZ mine, and these are pretty pictures of the minerals from that mine.â Lou, however, took...chemistry, crystal system, identifying features, and mine of originâall without notes. From his huge library |  | | Journal (article/letter/editorial) | | anotlrer by the northeust-southwest-treiiiliii~ Mullen Creek-Nash Fork Shc;ir Zoiic. The older northernmost province...northeasterly-trending continentul Figure 2. Geologic map of the Colorado Front Range showing the Precambrian metamorphic...Karistrom 1978; Lanthier 1978). Farther south in Colorado, sediments accumulated in decper-water rocks formed...Survey into âEarly, Middle, and Lateâ Eras. In Colorado we because of the subsequent folding and overthrusting...subduction zone and possibly the creation Era in Colorado and Wyoming of a volcanic island arc. Carpenter |  | LĂŒders, Volker, Romer, Rolf L., Gilg, H. Albert, Bodnar, Robert J., Pettke, Thomas, Misantoni, Dean (2009) A geochemical study of the Sweet Home Mine, Colorado Mineral Belt, USA: hydrothermal fluid evolution above a hypothesized granite cupola. Mineralium Deposita, 44 (4) 415-434 doi:10.1007/s00126-008-0221-3 | Journal (article/letter/editorial) | | geochemical study of the Sweet Home Mine, Colorado Mineral Belt, USA: hydrothermal fluid evolution above...hĂŒbnerite and sulfideâ fluoriteârhodochrosite mineralization at the Sweet Home Mine occurred coeval with the...Geosciences, Virginia Tech, Blacksburg, VA 24061, USA T. Pettke Institute of Geological Sciences, University...Switzerland D. Misantoni Colorado Calumet Company Inc., P.O. Box 1169, Golden, CO 80402, USA al assemblage was...quartz demonstrate that fluids from the Sweet Home Mine are enriched in incompatible elements but have considerably |  | | Book (edition) | | MILEAGE L OGS. REVISED EDITION Revised Edition, COLORADO GEM TRAILS AND MINERAL GUIDE HICllAHD :--1. PEARL...an extensive „em and mineral collecting tour 01 Colorado, revealing the interesting places where Nature...Swallow, Publisher) 2679 South York Street Denver, Colorado 80210 - , =· - ·, BOOKS BY RICHARD M. PEARL...PEARL Exploring Rocks, Minerals, Fossils in Colorado America's Mountain: Pikes Peak and the Pikes Peak...Atlas of Colorado American Gem Trails Nature As Sculptor: A Geologic Interpretation of Colorado . Scenery |  | Plumlee, Geoffrey S., Streufert, Randall K., Smith, Kathleen S., Smith, Steven M., Wallace, Alan R., Toth, Margo I., Nash, J. Thomas, Robinson, Rob A., Ficklin, Walter H., Lee, Gregory K. (1995) Map showing potential metal-mine drainage hazards in Colorado, based on mineral-deposit geology. Open-File Report Vol. 1995 (95-26) US Geological Survey doi:10.3133/ofr9526 | Report (issue) | | Prepared by the U. S. Geological Survey and the Colorado Geological Survey in cooperation with the U. S...Northgate Elkhorn Hahn's Peak Lower Slavonia Bear Creek Riv er Elk Riv er F Us Manhattan Crystal ...Springs er Yampa Riv Mt. Cumulus Masonville Teller Drake Greeley Estes Park Loveland Poison Ridge... V Allen's Park Us Akron Us Meeker Beaver Creek Troublesome 40° C White River ra o lo d Ward...Fulford Ri ve Frisco Evergreen Uv Uv Geneva Creek Gilman Hall's Gulch Tenmile - Breckenridge Kokomo |  | | Journal (issue) | | 4 cm -high specimen is from the DeMaria mine in Placer County, California. (Jeff Scovil Photo/Brett Keller... collecting run-of-the-mine specimens by Steve Voynick Montana Placer Mining ............................ 28 Wire gold and glacial nuggets on Hughes creek regular columns by Rob Towner Rock & Gem Kids...mzexpos@gmail.com www.mzexpos.com Like us on facebook COLORADO MINERAL & FOSSIL SHOW SEPT. 7 - 14, 2014 ~ DENVER...Retail Delivery Show Open to the Public Rhodochrosite - Alma, CO Photo by JeïŹ Scovil© Show |  | | Book | | MINES AND MINERALS OF THE GREAT AMERICAN RIFT (COLORADO-NEW MEXICO) Sine â_â< Âą te om At _SHT 40...MINES AND MINERALS OF THE GREAT AMERICAN RIFT (COLORADO-NEW MEXICO) Richard Walker Holmes and Marrianna...Mines and minerals of the Great American Rift (Colorado-New Mexico). Bibliography: p. Includes index...index. 1. Mines and mineral resourcesâColorado. 2. Mines and mineral resourcesâNew Mexico. I. Kennedy, Marrianna...enter must be obtained to prevent trespass. Old mine workings are dangerous and entering underground |  | | Book (volume) | | ...........................................59 Colorado ...............................................................548 Table of Maps Page Alabama County Map ...................................................................................4 Alaska County and Stream Map ..................................Co. Mining Districts ............................................................22 Arizona County Map.........................23 Arizona â Cochise Co. Mining Districts .................................... |  | | Report (volume) | | PROGRESS GEOLOGICAL RESURVEY OF THE CRIPPLE CREEK DISTRICT, COLORADO BY WALDEMAR LINDGREN AND FREDERICK..... ...:......................_...._....... 8 Mining and metallurgy ....................................^...... 11 First geological survey of the district ................................... Modifications............................. 32 Future of the district.................................................preliminary report on a "Resurvey of the Cripple Creek district of Colorado," by Messrs. Waldemar Lindgren and |  | | Report (issue) | | _________________ ___. Nevada ___________ Elko County. - ______ ... _ Star mine, Harrison Pass _____ ____ Pag« 59...63 Good Hope barite mine, Tuscarora Range _____ _ ._. ________ Humboldt County Golconda manganese-tungsten...Ltd., mine...... --_--______.______ Lincoln County__-__-----_-----_-----___ Tern Piute district.........district____ .________..__ Nevada Scheelite mine.. _ ______ Hooper No. 2 mine __ _____ _ _ Yankee Girl mine_______________...Mountains_____________.____ Desert Scheelite mine..... _______ Gunmetal mine _ ___________ _ Manganese-tungsten |  | | Journal (article/letter/editorial) | | Tourmaline on quartz, Cruzeiro mine, Minas Gerais, Brazil. Los Angeles County Museum of Natural History specimen...Pelt photo. MarcWApril: Beryl and calcite, La Pita mine, Maripi Boyacii, Columbia. Cal Graeber, Leonard...Quartz (amethyst), near Badger Creek, north of Coaldale, Fremont County, Colorado. Dave Bunk specimen, Jeff...(Herkimer âdiamondsââ), Treasure Mountain Diamond mine, near Little Falls, New York. Uli Bahmann specimen...SepteniberlOctober: Gold, Smuggler Union mine, Telluride district, Colorado. Colorado School of Mines Museum specimen |  | | Book (edition) | | â _ ; COLORADO GEM TRAILS AND MINERAL GUIDE ! â : ' BOOKS BY RICHARD M. PEARL Colorado Gem Trails...Trails and Mineral Guide Colorado Rocks, Minerals, Fossils Americaâs Mountain: Pikes Peak and the Pikes...Nature As Sculptor: A Geologic Interpretation of Colorado Scenery Guide to Geologic Literature Popular Gemology...Gemology Mineral Collectors Handbook Colorado Gem Trails The Art of Gem Cutting (With Dr. H. C. Dake)...Dake) * RICHARD M. PEARL â
COLORADO GEM TRAILS AND MINERAL GUIDE â
SKETCH MAPS BY MIGNON WARDELL PEARL |  | | Report (issue) | | GEORGETOWN QlJADRANGLE (TOGETHER 'VITH THE EMPIRE DISTRICT) COLORADo· BY JOSIAH E. SPURR AND GEORGE H. GARREY..................._.......... . Distribution in Colorado ................................................Boulder County.............. . . . . . . . . . . . ......... . ....... . 103 Ores in Gilpin County .............................. . 103 Orcs in Clear Creek County ............................ . 103 Ores from...Argentine to the Tenmile district .. : ............... . 104 Ores of the Tenmile 'district ................. |
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