 | | 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 (issue) | | 8 RED CLOUD MINE WULFENITE Rockhounds enjoy the products of this amazing Arizona mine. By Bob Jones...QUARTZ 40 ROCK & GEM KIDS 46 THE BRISTOL COPPER MINE 50 COOL SUMMER ROCKHOUNDING 54 NATIVE AMERICAN...CONNECTICUT YANKEE 64 Club members collect on Topaz Mountain. By Mark Leatherman Boots on the ground in the... Find jagged quartz crystals at the Wall Street mine. By Robert Beard Regular Columns Field Notes ....Wulfenite from the Red Cloud (photo credit)mine (La Paz County), Arizona, is world famous. (3.9 cm high) |  | | Report (issue) | | 14 1. 2. 3. 4. 5. Asbestos ore Lead ore. Balmat Mine, N. Y. Chromite-chromium ore. Wash. Zinc ore, Friedensville...ocean floor 13. Botryoidal fluorite ore. Poncha Springs, Colo. 14. Tungsten ore, North Carolina 5 World...Formation, Piceance Creek basin, northwestern Colorado.................................................Formation in the Piceance Creek basin, northwestern Colorado..... C6 13 18 20 20 24 25 TABLES TABLE 1. 2...___________ Piceance Creek basin, northwestern Colorado ————————————————————————————— C9 9 11 12 12 14 |  | Sheridan, Douglas M., Maxwell, Charles Henry, Albee, Arden Leroy, Van Horn, Richard (1967) Geology and uranium deposits of the Ralston Buttes district, Jefferson County, Colorado, with sections on Paleozoic and younger sedimentary rocks. Professional Paper 520. US Geological Survey doi:10.3133/pp520 | Report (issue) | | raniurn Deposits of the Ralston Buttes District Jefferson County, Colorado By DOUGLAS M. SHERIDAN, CHARLES H...veins on the of the Front Range west of Denver district flank of the geology of a east UNITED STATES...___________________________________ _ Rocks of the district ____________________________ --· __ Precn.mbrian...43 43 43 44 45 45 47 49 50 Page Rocks of the district-Continued Laramide intrusive rocks _______________________..._____________________________ _ 61 61 63 66 68 Idaho Springs-Ralston shear zone ___________ _ Structural features |  | | Report (issue) | | Sequence Along Coal Creek to Idaho Springs Formation Front Range, Colorado By JOHN D. WELLS, DOUGLAS M. SHERIDAN...1. Index maps of the Coal Creek area, Eldorado Springs, Ralston Buttes, and Blackhawk quadrangles..-_________...SEQUENCE ALONG COAL CREEK TO IDAHO SPRINGS FORMATION, FRONT RANGE, COLORADO By JOHN D. WELLS, DOUGLAS M. SHERIDAN...the high-grade metamorphic gneisses of the Idaho Springs Formation elsewhere in the Front Range. Accordingly...facies of the predominantly metasedimentary Idaho Springs Formation and not as a tectonically younger stratigraphic |  | | Book | | Division, Metal Bulletin Plc, Park House, 3 Park Terrace, Worcester Park, Surrey KT4 7HY in 1990. The... Sodium carbonate 120 Gypsum Iron oxide Sillimanite minerals 153 161 295 Wollastonite Zeolites...boundaries of the mineral industry are clear: the mining and milling of feldspar, for example, belong to...does not. But how does one draw the line between mining and manufacturing where brine from a salt well...districts, or a representative district if there are many. We name the chief mining companies, and give production |  | | Report (volume) | | Geology of the Eldorado Springs Quadrangle Boulder and Jefferson , Counties, Colorado C_-J / By JOHN D. WELLS...ILLUSTRATIONS Page PLATE 1. Geologic map of the Eldorado Springs quadrangle..___.__In pocket FIGURE 1. Index map...map showing location of the Eldorado Springs quadrangle. _ D3 2. Triangular diagrams showing mineralogical...GEOLOGY OF THE ELDORADO SPRINGS QUADRANGLE BOULDER AND JEFFERSON COUNTIES, COLORADO By JOHN D. WELLS ABSTRACT...ABSTRACT The Eldorado Springs quadrangle lies across the eastern margin of the Front Range immediately |  | | Report (volume) | | Selected Bibliography of Andalusite, Kyanite Sillimanite, Dumortierite Topaz, and Pyrophyllite in the... Selected Bibliography of Andalusite, Kyanite Sillimanite, Dumortierite Topaz, and Pyrophyllite in the...______-____________________________________ -________ Sillimanite _ _________________________________________________...SELECTED BIBLIOGRAPHY OF ANDALUSITE, KYANITE SILLIMANITE, DUMORTIERITE, TOPAZ, AND PYROPHYLLITE IN THE...compilation of 566 references on the kyanite, or sillimanite, group of minerals and pyrophyllite to December |  | | Report (volume) | | Advancement of Science A. I. M. E__.American Institute of Mining and Metallurgical Engineers Aardrijksk__. Aardrijkskundig...classn_____ classification Co_______. Company, County Coll______ Collections Conini_____ Committee Cominuii____...Direccion Dissert____ Dissertation dist_______ district distrib_____. distribution Div______ division...etc. Mimeo_____. Mimeographed Min_____ Mineral, Mining min. res____ mineral resources ig________ igneous...Mt________ Mount Mtg_______ Meeting Mtn______ Mountain Mts______ Mountains Mus______ Museo, Museum, |  | | Book | | mountains. W h i l e t h e g r e a t peaks a t Colorado, f o r example, r i s e f r o m a plateau 5,000...was m e r e l y p a r t o f t h e waste o f t h e mine. W h a t t h e y needed was h i g h grade ore o...eastern streams and rivers f o r epidote, unakite, blue quartz, agate, chalcedony, petrified wood and other...Washington D.C. area visit Virginia's noted Rutherford Mine. Photograph by Dr. Virginia Lee Blackford. ical...dollars at the noted locality of Cowee Valley, Macon County, North Carolina. An enthusiastic family found and |  | | 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...A. F. Rogers, Stanford University, Palo Alto. Colorado.........Prof. R. D. George, Boulder. Connecticut...Indianapolis. Iowa.............. Prof. George F. Kay, Iowa City. Kansas............Prof. Erasmus Haworth, University |  | | Book | | 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 |  | | Book (volume) | | fluorite (121.39 ct), Westmoreland, New Hampshire; blue fluorite (132.12 ct), Illinois; square cut particolor...amethsyt (78.70 ct), Hallelujah Junction, Nevada; blue, cushion cut topaz (25.30 ct), Ramona, California;...(25.56 ct), Sweet Home Mine, Colorado; colorless scheelite (19.66 ct), Kern County, California; octagonal...California. NECKLACE. Vivid blue matched benitoite gems from San Benito County, California, consisting of... Oregon; and three Montana sapphires, violetish blue (2.52 ct), yellow (4.17 ct), and pinkish purple |  | | Book | | enteri versity of Roches Harold L. Ailing's the mining distri* Adirondack Mou somed into a lifet New York...searching for silver near Lake Sanford in Essex County discovered magnetite in 1826, but an excess of...Rochester; the main Public Library of Buffalo and Erie County; and the Crandall Public Library (Holden Research...ciifce—Westchester County.................. Tne McLear pegmatite—5t. Lawrence County............................................................. Lyon Mountain.............................................. | | | Book | | farm above Keuka Lake in New York's Finger Lakes district. After attending Penn Yan Academy in nearby Penn...Harold L. Alling's geology students on a trip to the mining districts and the high peaks of the Adirondack...searching for silver near Lake Sanford in Essex County discovered magnetite in 1826, but an excess of...Rochester; the main Public Library of Buffalo and Erie County; and the Crandall Public Library (Holden Research...pegmatite-Westchester County .......... . The Mclear pegmatite-St. Lawrence County .......... . Minerals |  | | Book (edition) | | Localities Beaches Map of Oregon Beaches JACKSON COUNTY A Mineral Mecca Mop of Josephine and Jackson Counties...Counties General Ge::ilogy Fine Zeolites Gold Mining Region The Applegate Gem Rhodonite Area Copper Nuggets...ode" The Agate Desert Green Springs Agate in Many Colors Float Jasper Blue Hyolite Opal In Basaltic Rocks...Eagle Point Locality ~hodonite Table Rock Mountain JOSEPHINE COUNTY Josephinite Oregonite Althouse Creek CENTRAL...Plume Mines Ochoc::i D;ggings Post District Antelope Locality County Quarry Brown's Ranch Crystal Hills |  | | Report (volume) | | ............................................. 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 |  | | Book (edition) | | MARIN COUNTY FREE LIBRARY 3 1111 00289 4184 \ I s Fifth Revised Edition A complete, state-by-state...included contain such specific details as farm roads, mountain paths, stretches of stream beds, and easily identifiable...Maryland; Professor Richard Pearl of Colorado Springs, Colorado; and Professor Jack Hanahan of Belmont...reflects red wavelengths most readily, then the blue wavelengths. The result is red with a bluish cast...But with most minerals, color can be misleading. A blue crystal may be diamond, aquamarine, topaz, tourmaline |  | | Book (volume) | | SOUTHWESTERN QUADRANT Arizona, Arkansas, California, Colorado, Louisiana, Nevada, New Mexico, Oklahoma, Texas...Allan W. Eckert Bayou Backwaters The King Snake Blue Jacket The Owls of North America The Conquerors...Southwestern Quadrant Arizoni, Arkansas, California, Colorado, Louisicna, Nevada, New Mexico, Oklahoma, Texas...treasured friend, Frank A. Greene, Jr. of Coal City, Illinois | ae a nem ee as - @ lan aus...Location Numbers Arizona Arkansas California Colorado 258 Louis B30 ana HOW TO USE THIS BOOK |  | | Report (issue) | | by Mead LeRoy Jensen Kennecott's Bingham Canyon mine, the world's largest open pit, symbolizes the importance...MINERAL INDUSTRIES University of Utah, Salt Lake City, Utah BULLETIN 82 • PRICE $4.00 • MAY 1969...region Utah . . . " . . Cross section of Wah Wah and Blue Mountains Interpretation of the Laramide structures...Churchill Province of Northern Utah and Western Colorado Structure . . . Geochronology. . . 79 79 The...of the Wasatch Fault Zone in Salt Lake County. . Warm Springs Fault . . East Bench Fault Main Wasatch |  | | Report (issue) | | AMERICA 3300 Penrose Place, P.O Box 9140, Boulder, Colorado 80301 194 OCCIDENTAL COLLEGE LIBRARY 1600 CAMPUS...Inc. 3300 Penrose Place, P.O. Box 9140, Boulder, Colorado 80301 Printed in U.S.A. Library of Congress Cataloging...D. Hatcher, Jr. ......... 06. The core of the Blue Ridge anticlinorium in northern Virginia James W...suites in Grenvillian terrane of the Roseland district, Virginia Part fo Lithologic relations: ovis 5...S. Farrar Evolution of Grenville massifs in the Blue Ridge geologic province, southern and central Appalachians |  | | Report (issue) | | which have been formed to exploit them. WASHINGTON COUNTY. AMERICAN MOLYBDENUM COMPANY'S PROPERTY. Location...wholly unsuited to deposits like many of those in Colorado and elsewhere, in which the.individual flakes...are of almost microscopic size. CALAIS MOLYBDENUM MINING COMPANY'S PROPERTY. The property of the American...adjoined on the north by that of the Calais Molybdenum Mining Company. 234 CONTRIBUTIONS TO ECONOMIC GEOLOGY...Molybdenum Company. HANCOCK COUNTY. The known deposits of molybdenum in Hancock County lie along the north and |  | | Book (edition) | | interesting facts about the people involved in mining, current price lists of various stones, and numerous...from the Tourmaline Q ueen .1ine, Pala, San Diego County, California. From a pen-and-ink drawing by W. E...price increases, which make it more attractive to mine domestic deposits at a profit. Foreign labor is...information is included on the persons involved in mining the deposits, with dates and other pertinent information...Azurite, Shattuckite, Lapis Lazuli, Fibrolite (Sillimanite), N epheline Syenite, Serpentine, Rodingite, | | | Book (volume) | | fluorite (121.39 et), Westmoreland, New Hampshire; blue fluorite (132.12 et), Illinois; sqmu·e cue parricolor...amethsyt (78. 70 et), Hallelujah Junction, Nevada; blue, cushion cut topaz (25 .30 et), Ra1nona, Caufornia;...rhoColorado; eolorless scheelite (19.66 cc), Kern Cowny, California;...California. NECKLACE. Vivid blue matched benitoite gems from Sai, Benito County, California, consisting of... Oregon; and three Montana sapphires, violetish blue (2 .52 et), yellow (4.17 et), and pinkish purple |  | | Book (volume) | | 5 = fii? i a j — » ya y _— ’* : i mine in. q)! Y eit iia -...Isle Royale National Park were rendered by Superintendent John G. Lewis and Park Historian Lloyd Abelson...Furcron, Chief Geologist of the Department of Mines, Mining and Geology; on the State of Michigan by Robert...was also supplied by Dowse’s Agate Shop, Salt Lake City, Utah, by William J. Bingham of St. Paul, Minnesota...Kobuk jade locality. Descriptions of San Diego County, California, gemstones and the mines in which they |
|
