 | | 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) | | distinct minerals belonging to the montmorillonite group, and are analogous to the magnesian clay mineral...minerals to other members of the montmorillonite group are discussed. A zinc clay from Saucon Valley, Pennsylvania...accepted for this member of the montmorillonite group' Zinc-bearing clay materials, commonly referred...members of the montmorillonite-nontronite-saponite group, and the ionic substitutions within the groupl indicated...analogous to saponite, the magnesian member of the group, was to be expected, and so led to a detailed study |  | | Book | | 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 |  | | Thesis/Dissertation | | mapping technique in the Italian Mountain area, Colorado Item Type text; Thesis-Reproduction (electronic)...MAPPING TECHNIQUE IN THE ITALIAN MOUNTAIN AREA, COLORADO By Henry Albert Truebe A Thesis submitted to...tectonic setting of the Italian Mountain area in Colorado. . . . . . . . . . : ................... 2 Generalized...mapped by dividing the Italian Mountain area, Colorado into 884 100-meter grid spaces and inventory...technique was tested in the Italian Mountain area of Colorado and the resulting maps provide insights into the |  | | Journal (issue) | | R. Kampf Natural History Museum of Los Angeles County George Robinson National Museums of Canada Arthur........ .................... ..... ^ B lllii Leadville.................................................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 |  | | Report (issue) | | Bldg., 2600 corridor, 18th and CSts.,NW. DENVER, Colorado-Federal Bldg., Rm. 169,1961 Stout St. LOS ANGELES...Center, Rm. 1C402,12201 Sunrise Valley Dr. SALT LAKE CITY, Utah-Federal Bldg., Rm. 8105,125 South State...ROLLA, Missouri-1400 Independence Rd. DENVER, Colorado-Map Distribution, Bldg. 810, Federal Center FAIRBANKS...Juan Mountains, Colorado By FREDERICKS. FISHER Gold in the Alma Mining District, Colorado By DANIEL R.... SHAWE Precious Metals in the Leadville Mining District, Colorado By TOMMY B. THOMPSON Part I is Chapter |  | | Report (issue) | | 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 |  | | Report (issue) | | Nevada .............................. Leadville district, Colorado ......................................(Red Cliff) district, Colorado ...................... Aspen district, Colorado ..................................................................... Colorado ............................................................................................... Lake Valley district ........................................................................... 40. Colorado ............................................. |  | | Journal (article/letter/editorial) | | 1891. -On the Sequence of Strata forming the Qubec Group of Logan and Billings, with Remarks on the Fossil...I, Oct. 1892. --Brachiospongidae, a Memoir on a Group of Silurian Sponges. 28 pp., 6 pl. Memoirs of the...New Genus of Brachiopod from the L. Helderberg Group. N. A. Species of Strophalosia. 8 pp., I pl.--Am...Penn., 1884. -A Spiral Bivalve from the Waverly Group of Penn. 4 pp., I pl.--39th An. Rep. N. Y. State...Sci., Aug., 1892. BEACHLER, CHAS. S. --Keokuk Group of the Miss. Nalley. 8 pp.--Am. Geol. Aug., 1892 |  | | Report (issue) | | Geology and Ore Deposits of the Rico District, Colorado GEOLOGICAL SURVEY PROFESSIONAL PAPER 723 ... Geology and Ore Deposits of the Rico District, Colorado By EDWIN T. McKNIGHT GEOLOGICAL SURVEY PROFESSIONAL...---Lower Mississippian S.eries --------------Leadville Limestone -----------------Pennsylvanian System...--------------------Mountain Spring-Wellington group -----------Pigeon tunnel ------------------------------St...tunnel ----------------------------Rico Argentine group -----------------------Log Cabin (Blackhawk) tunnel |  | | Report (issue) | | 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...Colorado's four great mining regions along with Leadville, Cripple Creek, and Central City (Smith, 1996)...12, Above: August sunrise on middle Blue Lake, Ouray County Photo Jack Brauer/WideRange Photo LLC, 2010 |  | | Journal (issue) | | R. Kampf Natural History Museum of Los Angeles County Arthur Roe Tucson, AZ Abraham Rosenzweig University...Iron and Washington Counties) and Arizona (Mojave County). This region is one of the last American frontiers...frontiers for the formation of a mineraloriented group. It encompasses many interesting but relatively unknown...by Richard A. Kosnar Route 6, Box 263 Golden, Colorado 80401 n 1 9 0 2 , the well-known mining engineer...mining districts of the San Juan, in southwestern Colorado. We left Ouray early on the 5th of September, |  | | | | amianthus, blue 100 -amianthus, Cape 100 amphibole group 98 annabergite 73 arduinite 119, /2/ argentite...dialogite 42, 42 diamond 5, 6 galena 12, /3 garnet group 76 garnierite 107 gaylussite SO gehlenite 85 gismondine...97, 98 fayalite 75 feldspars 111 feldspathoid group 108 ferrierite 122 ferrimolybdite 63 fluoborite...119 metacinnabarite 13 meyerhofferite 54 mica group 104 mica, white 104 microcline 112, //3 millerite...102, /03 pyroxene group 96 pyrrhotite 12, /2 siberite 96 siderite 42 silica group 31 silicates 75 sillimanite |  | | Report (volume) | | unnumbered map. Contributions to the history of Lake Bonneville, by G. K. Gilbert, pp. 167-200, pis....on geology and mining industry of Leadville, Lake County, Colorado, by S. F. Emmons, pp. 201-290, pis...Marsh, pp. 45-88. " The copper-bearing rocks of Lake Superior, by Roland Dner Irving, pp. 89-188, pis...Sketch of the geological history of Lake Lahontan, a Quaternary lake of northwestern Nevada, by Israel...divisions, pp. 1-66. The topographic features of lake shores, by G. K. Gilbert, pp. 69-123, pis. iii-xx |  | | Book | | amianthus, blue 100 _amianthus, Cape 100. amphibole group 98 analcite 76, 108, 111 anatase 34, 34 andalusite...coquimbite 60 cordierite 95 galena 12, 13 garnet group 76 garnierite 107 gaylussite 50 gehlenite 85 gismondine...eye 31 fayalite 75 feldspars 111 feldspathoid group 108 ferrierite 122 ferrimolybdite 63 fluoborite...119 metacinnabarite 13 meyerhofferite 54 mica group 104 mica, white 104 microcline 112, /13 millerite...pyrolusite 34 pyrope 76 pyrophyllite 102, 103 pyroxene group 96 pyrrhotite 12, /2 quartz 28, 31, 95 nepheline | | | Book | | arnianthus, blue 100 ...amianthus, Cape 100 amphibole group 98 analcite 76, 108, I 11 anatase 34, 34 andalusite...fassaite 97, 98 fayalite 75 feldspars 111 feldspathoid group I08 ferrierite 122 ferrimolybdite 63 fluoborite...85 gahnite 24 galaxite 24 galena 12, 13 garnet group 76 garnierite 107 gaylussite 50 gehlenite 85 gismondine...mesotype 119 metacinnabarite 13 meyerhofferite 54 mica group 104 mica, white 104 microcline 112, 113 miJlerite...68, 68 pyrope 76 pyrophyllite 102, 103 pyroxene group 96 pyrrhotite 12, 12 quartz 28, 31, 95 quartz, amethyst |  | | Report (volume) | | J. W. Powell. 1893. 8°. 3pt. MONOGRAPHS. Lake Bonnovillo, by Grove TCarl Gilbert. 1890. 4°. xx...pi. Price $1.50. V. The Copper-Bearing Rocks of Lake Superior, by Roland Duer Irving. 1883. 4°. xvi,...$2.70. ' XI. Geological History of Lake Laliontau, a Quaternary Lake of Northwestern Nevada, by Israel...XIT. Geology and Mining Industry of Leadvillo, Colorado, with atlas, by Samuel Franklin Emmons. 1880....Price $1.00. , . XVJLI. The Flora of the Dakota Group, a posthumous work, by Leo Lesquereux. .Edited by |  | | Book | | looking at the constituents of the rock, or at a group of obvious crystals, or at an ore, for example,...Brownstone, which is used for building in eastern USA, comes from Conn., Wy., Neb. Californian and S. Dakotan...age. Mined in the Appalachian Mts. Peat occurs in USA and in Canada. Important mineral fuel, until recently...Birmingham, Alab. Hematite is interbedded with chert at Lake Superior. Many ironstones are mined commercially...dikes during mountain building, at Mt. St. Helens, Lake Co., Cal., Cascades Range. Trachyte (4) Usually |  | | Journal (issue) | | Tucson, AZ 85741 FRONT COVER: Native copper crystal group, 13.6 cm, from an unknown mine in the Michigan Copper...flowing into a great lake,” surely the place where the Ontonagon River empties into Lake Superior. Thus the...Lankton’s Cradle to Grave; Life, Work and Death at the Lake Superior Copper Mines (1991), published by Oxford...the book by T. A. Rickard, The Copper Mines o f Lake Superior (1905). Foster and Whitney’s Report on...the Geology and Topography o f a Portion o f the Lake Superior Land District in the State o f Michigan |  | | Book | | rocks contain large crystals, often of the feldspar group and are known as porphyries. The individual crystals...granite but with no quartz. Sandstone (South Dakota, USA) _9_ A darker rock than granite but with a similar...other books that a serious attempt to describe and group minerals could be seen to be in progress. His De...pairs. Water is often present and in the zeolite group it can escape when the minerals are mined since...Diopside and jadeite are members of the pyroxene group; asbestos reflects the often fibrous form of the |  | | Journal (issue) | | with a thickness of several kilometers. The Semri Group is best exposed in the Son valley area of Sonbhadhra...stratigraphy, the Lower Vindhyan consists of the Semri Group and the Upper Vindhyan includes the Kaimur, Rewa...cannot be considered as gemstones. The olivine group consists of eight minerals, the most familiar being...hardrock miner, and the author of guidebooks like Colorado Rocktransparency to be cut into gems. hounding...Schecter, executive vice president of Richline Group, Inc, recalled his father’s advice for what he looked |  | | Journal (article/letter/editorial) | | Downloaded by [University of Colorado - Health Science Library] at 05:32 11 October 2014 PART 1 Downloaded...Downloaded by [University of Colorado - Health Science Library] at 05:32 11 October 2014 A Historical... Inc. 1441 West 46th Avenue, Suite 14 Denver, Colorado 80211 n 1875 Co\orado was still a territory awaiting...Soptemberl0ctob.r 2000 319 Downloaded by [University of Colorado - Health Science Library] at 05:32 11 October...October 2014 Wise observers of history have called Leadville the quintessential mining camp of the frontier |  | | Journal (issue) | | northwest side of the Bristol Range in Lincoln County. Nevada. is another one of Nevada's linleknown...Silver Group in the Bristol-Jackrabbit District and is owned by Greenfield Environmental Trust Group (GETG)...The mine later became part of the Bristol Silver Group in 1907, when it was acquired by The Bristol Consolidated...Arizona. The mine today remains in the Bristol Silver Group which is owned by GETG. , nt.bto(rrl1J1 ·,,..__...merged into those of the other mines in the Bristol Group. Figure 4 - Stock certificate for 100 shares of |  | | Journal (issue) | | Three Articles The Tonopah-Belmont mine, Maricopa County, A rizona by G. B. Allen & W. Hunt 139 James...from the Table Mountain lava flows near Golden, Colorado ................................................o n a George B. Allen Route 6, Box 32 Golden, Colorado 80403 W illiam Hunt 10350 Andover Avenue Sun City...aerially extensive Osborn Ag-Au district of Maricopa County in west-central Arizona. The primary property in...Linarite crystals, 1 mm. F igure 7. Vanadinite crystal group, 3.5 mm, with descloizite. F igure 8. Rosasite sphere |  | | Journal (article/letter/editorial) | | Silver Creede Mining District, Mineral County, Colorado, USA By Ken Kucera Fabulous mineral specimens...mine in the Creede Mining district, Mineral County, Colorado, known as the Bulldog Mountain Mine. The Bulldog...mile northwest of the town of Creede, Mineral County, Colorado. See Figure 11. The last major period of silver...on Bulldog Mountain, near Creede in Mineral County, Colorado. A statement in this prospectus read: “our...9500 Levels, Creede Mining District, Mineral County, Colorado. Hypogene silver, rimmed on both sides by |
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