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| Geology and Ore Deposits of the La Plata District Colorado By EDWIN B. ECKEL with sections by J. S. WILLIAMS...Geological Survey Board and the Colorado Metal Mining Fund UNITED STATES GOVERNMENT PRINTING OFFICE...the Animas River. _ _ _ Lithology in La Plata district _ _______ Permian system____________________________...part of district -_ _. ..____'_ Northwestern part of district--------Southern part of district. ______...region as a whole __________________ La Plata district _ . ___ _ ____-____ _ 22 23 23 24 24 26 26 26 |
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| ....................................... 102 District of Columbia .................................................................................. Idaho...................................................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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| . . . . . . . . . . . . . . . . . 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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| 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...See Bauxite and Hallpysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found...commercial quantity or quality. Asphalt. Colbert County, small quantity has been shipped from near Leighton; |
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| Commissioner from Idaho, who spent nearly two years 'in collecting specimens from every mine of importance...minerals. The exhibit is placed in eight large black-walnut show-cases with plate-glass covers and sides...with stephanite, from the Reese River district, Lander County. Among these are several quite valuable...OF MINERALS OF THE SMITHSONIAN INC be de get too black or become should it f ective, it can STITUTION....transparent crystals of quartz, from the Chase Mine, Lander County. The ores from this locality are remarkable |
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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 |
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| ...........................................139 Idaho...................................................rights, so remember you were told. If in doubt, a county map will tell you who the legal owner is. Good...gemmy qualities for cutting and polishing. AUTAUGA COUNTY PRATTVILLE, N. 6 mi., and just E of the Birmingham...were well known to prehistoric Indians.) BARBOUR COUNTY BAKER HILL, SE 1 mi. : 1 in a deep ravine, as a...deep red to variegated⎯ocher. BIBB COUNTY GENERAL AREA: c county gravel pits along the Cahaba R.⎯gemmy |
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| ...........................................139 Idaho...................................................rights, so remember you were told. If in doubt, a county map will tell you who the legal owner is. Good...gemmy qualities for cutting and polishing. AUTAUGA COUNTY PRATTVILLE, N. 6 mi., and just E of the Birmingham...were well known to prehistoric Indians.) BARBOUR COUNTY BAKER HILL, SE 1 mi. : 1 in a deep ravine, as a...deep red to variegated⎯ocher. BIBB COUNTY GENERAL AREA: c county gravel pits along the Cahaba R.⎯gemmy |
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| Geology and Ore Deposits of the Boulder County Tungsten District Colorado GEOLOGICAL SURVEY PROFESSIONAL... Geology and Ore Deposits of the Boulder County Tungsten District Colorado By T. S. LOVERING and OGDEN TWETO...Geological Survey Board and the Colorado Metal Mining Fund UNITED STATES GOVERNMENT PRINTING OFFICE...of the district.________________________ Pre-Cambrian rocks_____________________________ Idaho Springs...22 22 22 23 24 Pag-e Principal rocks of the district— Continued Early Tertiary igneous rocks— Continued |
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| of Stockport d—-Librejnes 5L+-9 000769884 ODO BLACK CAT ACKNOWLEDGMENTS The authors and publishers...Minerals and Gemstones Reprinted in 1994 under the Black Cat imprint Little, Brown and Company (UK) Limited...to Mohs’ scale, which runs from i (talc) to io (diamond). It is an important guide to the identity of a...The colour is silverwhite, tarnishing quickly to black. The streak is silver-white and the lustre metallic...states of Guanajuato and Chihuahua, Mexico. In the USA silver occurs at Keweenaw, Michigan, in association |
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| ...........................................160 Idaho .................................................................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 .................................... |
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| MARCH, Ph.D. 1914 Issued by California State Mining Bureau McN. HAMILTON STATE MINERALOGIST F. F...Minerals of herewith Bulletin 67 of the State Mining California. This work was made possible at this...localities new and quently the The second list ^Mining' State Mineralogist. This known localities...literature of a general nature on the geology and mining industry of the State. bibliography of A. may...The excellent Vodges, Bulletin 30 of the State Mining Bureau, be referred to for such literature. The |
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| Cover illustration Beryl crystal in quartz, Lacorne mine. The crystal is 39 mm long and 18 mm wide. National...2359J Molybdenite crystal in quartz, Moly Hill mine. The crystal is 33 mm across. National Mineral Collection...Baldwin (Kelmac) mine Swastika (Crescent Kirkland) mine Lucky Cross (Golden Gate) mine Adams mine Boston molybdenite...Boston Creek gold mine Barry-Hollinger (Patricia) mine Boston-McRae mine Planet Gold mine Miller Independence...Independence mine Kennedy-Boston mine Cathroy Larder (Yama) mine Macassa mine Kirkland Lake gold mine Teck-Hughes |
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| 1 D E J •LEGEND- MEXICO -^ Mining O Division Boundaries. Mining Division Offices. (6) PREFACE...a part of the Fourth Annual Report of the State Mining Bureau, by Henry G. Hanks, who was then State Mineralogist...''Minerals of California," of the California State Mining Bureau. In the thirty years which had elapsed since...published as Bulletin 91 of the California State Mining Bureau. Many additional species were included,...commercial borates. Lawsonite, first found in Marin county in 1895, has proved to be of great petrographic |
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| the land rises abruptly into the 6,000 sq. mi. Black Hills region enclosed by the Belle Fourche and Cheyenne...instance, a single Spodumene crystal from the Etta Mine near Keystone on the east side of the Mount Rushmore...huge crystals of sparkling blue Beryl from the Black Hills pegmatites have measured from 18’ to 27’ long...and Uranium has come only from the core of the Black Hills region. Two divisions are recognized: the...beds, excavations, etc.Selenite roses. BRULE COUNTY AREA: in the Oacoma zone of the Pierre Fm. On Elm |
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| Mines, DESCRIPTION OF THE MINES AND MILLS, AND THE MINING AND MILLING CORPORATIONS OF COLORADO, ARRANGED...WEALTH AND PROSPERITY, UNEQUALED IN THE HISTORY OF MINING COMMUNITIES, THIS WORK IS RESPECTFULLY DEDICATED...Colorado for 1878 was $9,829,817, as follows: Lake County, $2,650,000; Clear Creek, $2,250,000; Gilpin, $2...000. Such being the extent and importance of the mining industry of Colorado, it was evident that some...herein may seem a rep etition, but in order that each mine may stand on its own merits, and to facilitate the |
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| particular service in co- operating with the State ^Mining Bureau in making possible this addition to our...a part of the Fourth Annual Report of the State Mining Bureau, by Henry G. Hanks, who was then quently...the thirty years which elapsed since the State Mining Bureau. appearance of the second list, our knowledge...literature of a general nature on Die geology and mining industry of the State. The various kinds of minerals...Woodcock, formerly of the State Mining Bureau. Walter W. Bradley of the State Mining Bureau, M. Vonsen of Petaluma |
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| said to have been found in the mining the nugget Jim, Placer County, California, in 1871 by a small...Counties of California: Minerals and mineral lists Mining Districts of California Unvalidated entries in...The bibliography has been updated and expanded. County lists published by Collins (1) pp. 40-64, in Murdoch...resulting from references to the geographic term ''Mining District," especially in the pre-1920 literature. Widespread...rhyolite locality in Alameda County and the lawsonite type locality Marin County, which have been completely |
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| up 165 for to Temiskaming Cochrane district read district. Ref. 4, under oruetite, add See also... for VVakatipu district, CoUingwood, 294 Zealand read Wakatipu 303 line district, 8 in synonomy...and the corresponding citation (Hudson Bay 309 mine). in Ref. 4, line Z, for 670 read 676. 310 in...16, 15, 14, 231. Wad, delete (and 5, for Black Forest read Odenwald. for Rhine Province read Westphalia...pageite read paigeite. for Algoma district read Sudbury District. in the left Itand figure in the |
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| an overall guide been written on gold and gold mining of publications have no single report or to...longer district Hulin, respectively. the principal features of each gold-bearing district are described...publications were written on various phases of gold mining. The reports of John Trosk, the first State Geologist...Commissioner of Mineral prepared reports of mine production and gold-mining Bureau, and later now the California...The California Mining in 1880, gold-mining operations; the and Geology and the County a number of |
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| rewhich was publi.shed as Bulletin 67 of the State Mining Bureau. vision by the same author in 192-3 increased...tribes in the northeast corner of San Bernardino County in pre-historic times. The old workings here were...stone hammers, and called his claim the Stone Hammer mine. This find aroused so much interest that the San...circumstance the location was named the Stone Hammer mine. "The State Slining Bureau reported at about the...desert region between Death Valley and Goff's Mining District, nearer the former, and that good samples were |
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| lapidary’s trim saw; Felker Manufacturing Co., for the diamond-set blades; Rocks Lapidary Equipment, for the cabochon-making...Consoli¬ dated Mines, Inc., for the three stages in diamond cutting; Sinclair Oil Corp., for the geologic time...Gems 95 Rocks 241 Meteorites 263 Geology and Mining 272 Index 310 PREFACE The mineral and gem...crystals, gems, the art of gem cutting, rocks, mining, mete¬ orites, and the basic mineralogy and geology...chosen for their educational value. So too have the black-andwhite photographs, credit for which appears in |
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| 31 University of Nevada Press, Reno, Nevada 89557 USA Copyright © 2004 by University of Nevada Press Photographs...copyright © 2004 unless otherwise noted Map of Mining Districts and significant mineral occurrences of...Olivenite, 1.6-cm cluster, Majuba Hill Mine, Antelope district, Pershing County. N. Prenn collection. Photograph...production of environmental protection equipment. Mining and the discovery, identification, and development...to Nevada in 1929 and was actively involved in mining in the state and the western U.S. for the rest |
 | | Journal (issue) |
| Articles Native gold from the Jamestown mine, Tuolumne County, California...............................Baranda Some pegmatite minerals from the Zomba district, Malawi ........................................Adularia from the Howard-Montgomery quarry, Howard County, Maryland .......................................visiting the Blanchard mine or other mines in the Hansonburg mining district near Bingham, New Mexico...signed in at Bingham for entry to the Blanchard mine area for surface collecting. Underground collecting |
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| in connection some information as to mines and mining renovation ; industry. " The student is referred...MINERALOGY. 3. Minerals differ in hardness from the diamond at one end of the scale to soapstone at the other...other distorted crystals. Occasionally, as in the diamond, the planes of crystals are convex; and then, of...marked example is carbon, which is isometric in the diamond, but hexagonal in graphite: of extreme hardness...is essentially like ordinary In the figure the black spots represent grains hornblende. of magnetite |
