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| pale green fluorite octahedra, 0.75 inch on edge, from the Henderson mine, Clear Creek County. Figure 2...2 (right). Green fluorite encrusted with quartz on a plate of quartz, from a prospect in the Needle Mountain...Mountain Wilderness area near Columbine Lake, La Plata County; largest crystal measures 1.25 inches on edge;... C*O*L*O*R*A*D*O FLUORITE BARBARA L. MUNTYAN Ouray County Museum Ouray, Colorado 81427 Mineral photographs...reported from numerous localities worldwide. Fine fluorite specimens in many habits and colors have been |
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| 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 |
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| Geology and Ore Deposits of the La Plata District Colorado By EDWIN B. ECKEL with sections by J. S. WILLIAMS...cooperation with the Colorado State Geological Survey Board and the Colorado Metal Mining Fund UNITED STATES...along the Animas River. _ _ _ Lithology in La Plata district _ _______ Permian system____________________________...along the Animas River._____ Localities in the La Plata quadrangle __ Collections from the Rico formation_____...its tributaries..__________ Localities in the La Plata quadrangle __ Interpretation of the Rico collections |
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| ORE MINERALS OF THE LA PLATA COLORADO, COMPARED WITH TELLURIDE F. W. MOUNTAINS, OTHER DISTRICTS3...about one hundredpolishedsections of ores from the La Plata 1%iountains in southwestern Col- orado has revealedthat...sulphidesand associatedtelluridesexist throughoutthe district. Becauseof the comparativescarcityof detailedinformation...Ontario, and twelve sections from Cripple Creek, Colorado,were also examined. Although the number of sectionsfrom...essentially identical with those exhibited by the La Plata ores. INTRODUCTION. T•E presentinvestigation |
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| the window of the Collector Shop in L a Jolla, California, I recall seeing delicate, long-legged, pink...Peru; the Home Sweet Home mine, A l m a , Colorado; and the N'Chwaning mine, Kuruman, South Africa. These...1: Rhodochrosite from the N'Chwaning mine, Black Rock district, Hotazel, North Cape Province, South Africa...also reports one of the earliest localities, the "gold mines of Nagyag" (Nagyag, now Sacaramb, Transylvania...of discoveries in Colorado, beginning with the superb finds at the John Reed mine, Alicanti, near Leadville |
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| FREEWAY 14051 p a c if ic COAST HIGHWAY Gold-Nevado Co. California Hours: Tues-Sar. 10-5 Sunday 12-5 [evenings...Julius Weber Mamaroneck, New York COLORADO ISSUE #2 Articles Colorado locality index.............................. 323 by B. L. Muntyan What’s 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 |
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| August 2013 BARBARA L. MUNTYAN P.O. Box 495 Ouray, Colorado 8 I427 hodochrosite, a manganese carbonate with...Rhodochrosite has also been found in many localities in Colorado, particularly in the mines of the San luan Mountains...it i s one of the most recognized and coveted Colorado minerals. partiY DO e the presence of a mix...occurs in significant amounts in many mining districts of the Colorado mineral belt, a large, elongated,...extreme southwestem comer of Colorado. Most of the metal mining in Colorado has been within this belt since |
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| CALAVERITE Cripple Creek, Colorado W ith the exception of native gold and electrum, the gold telluride calaverite...calaverite may well be the most important gold ore mineral. Its weathering characteristics make identification...Cripple Creek district, essentially subsequent to the development of all other Colorado gold districts.... Unlike most gold deposits, weathering of those characterized by relatively abundant telluride minerals...fine-grained and dull, mustard-colored secondary gold that is disbursed as tiny particles as the individual |
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| Radioactivity in the Metal-Mining Districts of the San Juan Mountains Colorado GEOLOGICAL SURVEY --*_-...Radioactivity in the Metal-Mining Districts of the San Juan Mountains Colorado By C. T. PIERSON, W. F. WEEKS...radioactivity in the metal-mining districts of the San Juan Mountains, Colorado, by C. T. Pierson, W. F..._______________ CeboUa district..______________________________ Upper Uncompahgre district. ______ _________________________...Uranium occurrences___________ ________ __ Bonanza district..____________________ ___________________ General |
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| Discovery, Mining History, Geology, and Specimen Mineralogy of Selected Occurrences in Central Colorado and...Inc. 1441 W. Forty-sixth Avenue Suite 14 Denver, Colorado 80211-2338 P art one of this article (July/August...discovery of gold in Colorado and the mining history and geology/mineralogy of the Front Range mining districts...the gold deposits found throughout the rest of the state. As previously mentioned, each new gold discovery...Buckskin Gulch, Alma, and California Gulch. THE CENTRAL COLORADO MINERAL BELT LAKE COUNTY 3,396,000 ounces, |
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| ..........................................49 California ..........................................................................................59 Colorado ...............................................................548 Table of Maps Page Alabama County Map ...................................................................................4 Alaska County and Stream Map ..................................Co. Mining Districts ............................................................22 Arizona County Map |
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| . 234 " y { " ,-t .. .~,:",. I " , COLORADO "or.! _ +, (~ STATE OF .~ :'(' COL~ADO /... BULLETIN 40 RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BlaLlllGRAPHY by James L. Nelson-Moore,...Energy COLORADO GEOLOGICAL SURVEY DEPARTMENT OF NATURAL RESUURCES STATE OF COLORADO DENVER, COLORADO 1978...ete 11 st r ng of rad i aaet 1ve occurrences 1n Colorado, with a comprehensive blbi iography and bibliographic...on the Colorado Plateau sparked several periods of exploratIon that ultimately led to a mining "boom ll |
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| R. Sidder U.S. Geological Survey, Menlo Park, California Open-File Report 86-407 This report is preliminary....................................... EpIthermal gold deposits..........................................27 32 Illustrations Figure 1. Location map of mining districts in the Reno 1° x 2° quadrangle, Nevada...Table 1. Table 2. Table 3. Known production from mining districts in the Reno 1° x 2° quadrangle, Nevada.............. Occurrences of mineral deposits in mining districts of the Reno 1° x 2° quadrangle, Nevada |
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| ..........................................39 California ..........................................................................................47 Colorado ................................................rights, so remember you were told. If in doubt, a county map will tell you who the legal owner is. Good...Prior to the California gold rush of 1849, this portion of Alabama experienced its own gold rush, largely...largely unprofitable, although gold may still be panned in the regional streams. Most of the rest of the |
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| ..........................................39 California ..........................................................................................47 Colorado ................................................rights, so remember you were told. If in doubt, a county map will tell you who the legal owner is. Good...Prior to the California gold rush of 1849, this portion of Alabama experienced its own gold rush, largely...largely unprofitable, although gold may still be panned in the regional streams. Most of the rest of the |
 | 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). |
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| The Triangle of Colorado Mountains of Minerals Contributors David W. Bunk, Robert B. Cook, Don Earnest... Contents PAGE4 PAGE 10 4 The San Juan Triangle of Colorado Ho for the San Juans! by Duane A. Smith, Mark...and Karen A. Vendl L ocated in southwestern Colorado and covering over 31,000 square kilometers, the...For the past 250 years, men have sought to extract gold and silver from these mountains. However, it was...the extent of their mineral wealth. In addition to gold and silver, the region produced economic quantities |
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| MINES AND MINERALS OF THE GREAT AMERICAN RIFT (COLORADO-NEW MEXICO) Sine —_—< ¢ 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 resources—Colorado. 2. Mines and mineral resources—New Mexico. I. Kennedy, Marrianna...enter must be obtained to prevent trespass. Old mine workings are dangerous and entering underground |
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| 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 |
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| ....... California................................................................ Colorado................................................... 102 District of Columbia ....................................to refer to Geological 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 that are widely...because they occur in sufficient quantity to warrant mining for their usual products, but because they furnish |
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| Principal Gold-Producing Districts of the United States By A. H. KOSCHMANN and M. H. BERGENDAHL GEOLOGICAL...description of the geology, mining history, and production of the major gold-mining districts in 21 States...relations ---------------------------History of gold mining and trends in production_ J\labama ---------...--------------Cleburne County ----------~----------------- Tallapoosa County --------------------------Alaska...------------------Cochise County -----------------------------Gila County --------------------------------Greenlee |
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| Telluride Colorado GEOLOGICAL SU R VEY BULLETIN Prepared in cooperation 'with the Colorado State Geological...Geological Survey Board and the Colorado Metal Mining Fund Board 1112-G Geology and Mineral Deposits...Deposits of the Area South of Telluride Colorado By JOHN S. VHAY CONTRIBUTIONS TO ECONOMIC GEOLOGY GEOLOGICAL...cooperation with the Colorado State Geological Survey Board and the Colorado Metal Mining Fund Board UNITED...Geologic map of some mines along Bear Creek and in La Junta Basin. 21. Geologic maps of some mines on the |
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| Series 30 Bibliography and Index of Colorado Geology, 1984-1989 Colorado Geological Survey Department of...Resources Denver, Colorado 1990 Information Series 30 Bibliography and Index of Colorado Geology, 1984-1989...Institute under contract to the Colorado Geological Survey Colorado Geological Survey Department of...of Natural Resources Denver, Colorado 1990 ii FOREWORD In recognition of the need to more effectively...published literature on the state's geology, the Colorado Geological Survey is pleased to release Information |
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| [ [ 23 I 1992 [ 65-128 65-136 65-128 1-96 GOLD-II] 1-112 MMEE•] 25 I 1994 1-80 ARIZONA-I] ...193-256 137-208 129-192 209-264 193-256 [ [ COLORADO-Ill] 177-256 121-184 89-168 1-120 1-88 [ ...337--400 COLORADO-II] 321--400 337--400 ARIZONA-Ill] 337--400 257-336 [ 257-320 [ [ GOLD-I ] 321--412...353-416 257-320 321-384 225-288 137-224 CALIFORNIA ] 273-336 ARIZONA-IV ] 1-102 [ 17 / 1986...69-132 65-128 1-64 11 / 1980 20 I 1989 [ COLORADO-I] [ 289-352 385-448 [ AUSTRALlA] 353-504 |
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| stumble over a valuable nugget and stake your own mining claim? Indeed it to is, and author book Jay...prospecting, he points out, is in abandoned mining districts, where valuable mineral ores are present...commercial ores and secondary minerals by state, county, township, and geologic range. For easy identification...RANSOM 1875-1948 An to the Eastern '‘Schoolmarm” Mining Camps of the Old West I I a s I \ h K... CONTENTS Preface ix PART I 1 Introduction to Mining and Mineralogy 2 Preparation for Mineral Collecting |
Gold King Mine, La Plata Mining District, La Plata County, Colorado, USA