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| August 2013 BARBARA L. MUNTYAN P.O. Box 495 Ouray, Colorado 8 I427 hodochrosite, a manganese carbonate with...botryoids at San Luis, Argentina. Rhodochrosite has also been found in many localities in Colorado, particularly...particularly in the mines of the San luan Mountains in the southwestern part of the state. It occurs in colors...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, |
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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...minerals of the Great American Rift in New Mexico and Colorado. Great American Rift is the name we use for a |
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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...p. 412-413. 1. Radioactivity. 2. Uranium ores San Juan Mountains. i. Title. (Series: U. S. Geological..._______________ CeboUa district..______________________________ Upper Uncompahgre district. ______ _________________________ |
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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...ocated in southwestern Colorado and covering over 31,000 square kilometers, the San Juans are some of the...not until the last 25 years of the 1800s that the San Juans began revealing the extent of their mineral...In 1896 world-renowned mining engineer Thomas ''T.A." Rickard called the San Juans one of Colorado's |
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| . . . . . . . . . . . . . . . . . 1 Chapter I. Mining Districts of Counties and the State of Utah. .... . . . . . . . . . . . . . . . . . . . . . . 1 County Listings. . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . 1 Chapter II. Mining Districts of Utah . . . . . . . . . . . . . . .... . . . . . . . 4 Mineral Localities Listed by County . . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . . 7 Beaver County . . . . . . . . . . . . . . . . . . . . . . . |
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| Julius Weber Mamaroneck, New York COLORADO ISSUE #2 Articles Colorado locality index.............................. 323 by B. L. Muntyan What’s new in Colorado minerals? ............................................. 339 by M. I. Jacobson The San Juan Mountains of Colorado ..................................349...10 cm tall, from the Yucca Hill claim, Park County, Colorado. Richard A. Kosnar specimen; photo by John...Natural History for conceiving the idea of a second Colorado issue and for helping a great deal in bringing |
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| of COLORADO ED RAINES Geology Museum Colorado School of Mines 1310 Maple Street Golden, Colorado 80401...Figure 1. Camp Bird mine, level 2, Sneffels district, Ouray County. Raines-Pettem collection, photographer...photographer unknown. B etween 1868 and 1922, Colorado produced almost 260 million pounds of copper. Nearly 100...from the Leadville district, with another 50 million pounds mined in San Juan County (Henderson 1926).... During the twentieth century, the Gilman district surpassed Leadville in total copper production with |
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| inch on edge, from the Henderson mine, Clear Creek County. Figure 2 (right). Green fluorite encrusted with...Mountain Wilderness area near Columbine Lake, La Plata County; largest crystal measures 1.25 inches on edge;... FLUORITE BARBARA L. MUNTYAN Ouray County Museum Ouray, Colorado 81427 Mineral photographs by John R...locations in Mexico; in Elmwood, Smith County, Tennessee, and in Hardin County, Illinois, in the United States;...eastern Russia. It also occurs in many localities in Colorado, where it is found in colors ranging from pale |
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| Episodic Introduction of Metallic Nanoparticles into Bonanza Epithermal Ores James A. Saunders Department of...Geography, Auburn University, Auburn, AL 36849, USA; E-Mail: saundja@auburn.edu; Tel.: +1-334-844-4884...sulfidation (LS) epithermal deposits in the western USA often show evidence of the former presence of nanoparticle-sized...precious-metal and silica phases in the highest grade (bonanza) ores. Here, nanoparticles are defined to have...deposited to form the banded bonanza veins typical of many western USA epithermal deposits. Chalcopyrite |
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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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| [University of Nebraska, Lincoln] at 13:31 09 June 2016 Colorado boasts numerous localities where fine sphalerite...Elmwood, Tennessee; the mines of the Tri-State district of Missouri-OklaDownloaded by [University of Nebraska...of sphalerite also occur at many localities in Colorado, in shades of amber, emerald- or lime-green,...Muntyan, former director of the Ouray County Museum in Ouray, Colorado, is a frequent contributor to Rocks...in her series on Colorado minerals appeared in the July/August I994 issue (“Colorado Pyrite”), September/October |
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| BRIEF REVIEW OF THE GEOLOGY OF THE SAN JUAN REGION OF SOUTHWESTERN COLORADO BY WHITMAN CROSS AND ESPER S...andesite__________ _-_______________________________ San Juan tuff__ _________________________________________________...group._-__ _-_-__-_-_ ___ _ _ _____________________ Eureka rhyolite... __--________-__________J______________...__-__ Resources. ____ __ ^_____ _ ______ Metal mining.._____________-_-------__--_-______-____--_____Production...Geologic map of the San Juan region, Colorado _________ In pocket 2. Relief map of Colorado showing the relation |
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| EUREKA! Self-Collected Minerals A Supplement to The Mineralogical Record, May-June 2022 EUREKA! U...Supplement to the Mineralogical Record, May- June 2022 EUREKA! Self-Collected Minerals A Supplement to The Mineralogical...on Amazonite 7.5 cm, from the Smoky Hawk claim, Colorado. Collected by the Dorris family; Tom Spann photo...stacked in surrender. The Mineralogical Record, Eureka Supplement THE THRILL Everything, everywhere...pocket in 1955 at least 25 others were found as mining progressed. The contents of these, which ranged |
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| 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...ee County ----------------------------R[aricopa County ----------------------------R[ohave County -- |
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| COLORADO STATE GEOLOGICAL SURVEY BOULDER R. D. GEORGE, State Geologist BULLETIN 9 GEOLOGY AND ORE DEPOSITS...OF THE BONANZA DISTRICT SAGUACHE COUNTY COLORADO By HORACE B. PATTON 1915 DENVER,COLORADO EAMES BROTHERS...DOI: https://doi.org/10.58783/cgs.b09.vtso7767 Colorado State Geological Survey. Bulletin No. 9, Plate...rnor of Colorado LIVINGSTON FARRAND ______________________ President University of Colorado HowARD C...TRANS:\IITTAL ST.I.TE GEOLOGICAL SuRVEY, UNIVERSITY OF CoLORADO, December 2, 1916. Governor George A. Carlson |
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| Downloaded by [University of California, San Diego] at 15:26 22 February 2016 - Featured Mineral at...(above). Pyrite, Alice Glory Hole, Clear Creek County. Cluster of intergrown crystals showing light...(right). Pyrite, Mountain Spring mine, Rico, Dolores County. Cluster of modified cubes; specimen 2 by 2 inches;...C*O*L*O*R*A*D*O PYRITE BARBARA L. MUNTYAN Ouray County Museum Ouray, Colorado 81427 Mineral photographs by John R...Park City, Utah; Washington State; and numerous Colorado localities. Pyrite crystallizes in the isometric |
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| Ore Deposits of the Eureka and Adjoining Districts San Juan Mountains, Colorado By WILBUR S. BURBANK...with the Colorado State Mining Industrial Development Board A study of part of the western San Juan Mountains...Tertiary volcanic rocks_- ___ - ___________________ _ San Juan Formation ________________ -------Silverton Volcanic...___________________ _ Picayune Formation _______ ------ ______ _ Eureka Tuff ___________________________ _ Burns Formation...___________________ _ Cauldron ring-fault belt ________________ _ Eureka graben ________________________ _ Fault systems |
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| DEFINITION OF SOUTH A MINERAL CENTRAL BELT COLORADO. IN • JOHN W. GABELMAN. CONTENTS. PAGE Abstract............... Geologichistory of south central Colorado ................................ 180 182 182.................................. South central Colorado mineral belt ...................................morethan$100,000production.............. 193 194 194 Bonanza ........................................................................... 196 196 Areas of district definitionwith lessthan $100,000production... |
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| Bldg , 2600 comdor, 18th and C Sts , NW • DENVER, Colorado--Federal Bldg , Rm 169, 1961 Stout St. • LOS ANGELES...Utah--Federal Bldg., Rm. 8105, 125 South State St. • SAN FRANCISCO, California--Customhouse, Rm 504, 555 Battery...ROLLA, Mlssourl--1400 Independence Rd • DENVER, Colorado--Map Distnbutton. Bldg 810, Federal Center • FAIRBANKS...Epithermal Gold Deposits-Part I The Goldfield Gold District, Esmeralda and Nye Counties, Nevada By ROGER P...Precious-metal District, Esmeralda and Nye Counties, Nevada By ROGER P. ASH LEY The Republic Gold District, Ferry |
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| The endsheet maps are reprinted from The Mexican Mining Industry 1890-1950 by Marvin D. Bernstein, by permission... CONTENTS • Foreword lX Preface Xl Important Mining Districts 1 Discovery and Developments in Mexico...introduction contains an interesting summary of the mining history and the development of mineralogy. It also...The author discusses eight of the more important mining districts in Mexico, which produce fine mineral...geologists, mineralo- LX x I Foreword gists, and mining engineers, but also for mineral and gem collectors |
 | | Journal (article/letter/editorial) |
| stibnite, a variety of sulfides and sulfosalts, calcite, and barite. Realgar rarely occurs in the eastern...mines at Paris, Oxford County, Maine, and the Palermo No. 1 mine, Groton County, New Hampshire. It occurred...jordanite in zinc ores mined at Balmat, Edwards County, New York (Jensen 1978). It was a rare mineral...Sterling Hill, Sussex County (Palache 1941) and was an unusual mineral occurring in calcite at the Lower New...New Street trap-rock quarry at Paterson, Passaic County, New Jersey. It is a very rare accessory mineral |
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| The endsheet maps are reprinted from The Mexican Mining Industry 1890-1950 by Marvin D. Bernstein, by permission...is * CONTENTS Foreword Preface Important Mining Districts Discovery and Developments in México...introduction contains an interesting summary of the mining history and the development of mineralogy. It also...The author discusses eight of the more important mining districts in México, which produce fine mineral...geologists, mineralo- x / Foreword gists, and mining engineers, but also for mineral and gem collectors |
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| . 1449 White calcite ............................................... Black calcite ....................... Rock from Alderman mine, Browns Canyon, Colorado .............. Age of the veins ............................................................. Colorado ................................................recent years. The three specimensof black calcite veins in Juab County, Utah, were collectedby R. K. Hose of...kindly visited the Optimo prospectin the Luis Lopez district and collectedspecimensthere. The five specimensof |
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| THE EASTERN PART OF THE BONANZA VOLCANIC FIELD, SAGUACHE COUNTY, COLORADO By John D. Mayhew ProQuest...to the Faculty and the Board of Trustees of the Colorado School of Mines in partial ful fillment of the...Signed Golden, Colorado Date : Thesis Advisor ad of Department Golden, Colorado Date : T 1226... The eastern flank of the Bonanza volcanic field in south-central Colorado was studied primarily to determine...this period of erosion, the Bonanza Tuff was deposited over much of the Bonanza area on a surface of relatively |
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| ...........................................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 – Cochise Co. Mining Districts .................................... |
