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| Plata meaning “gold and silver,” and the state seal with its representation of mining tools clearly proclaim...proclaim Montana’s mining origins. Montana’s production of copper, coal, gold, lead, manganese, phosphate...published describing the occurrence, collecting, mining, and cutting of the two state gemstones. Figure...Granville Stuart established Montana’s first mining camp at Gold Creek in 1860. Geologic Provinces The state...MICHAEL J. GOBLA 19055 East Bethany Place Aurora, Colorado 80013 gobla@copper.net Unless otherwise noted |
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| wolframite and scheelite are quite rare and occur at only a few localities. Scheelite has been found...Bernardino County, California and also in pegmatites north of the Reagan mining district, Nevada. FLUORIDES...rare earth type of pegmatite as at Barringer Hill, Llano County, Texas where large masses weighing up to...found in the Gem Mines region north of Florissant, Colorado; green cubes and cubo-octahedrons to four inches...octahedral crystals have been collected at Mt. Antero, Colorado; where also the first octahedral twinned crystals |
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| OT1S SMITH, DIRECTOR .jf \ BULLETIN 583 ' ' COLORADO FERBERITE AND THE WOLFRAMITE SERIES A r* i BY............. 8 Geography and geology of the Boulder district........................... 8 Occurrence, vein............................................... 12 Gold and silver................................................................................. 17 Scheelite............ r ....................................... 38 CRYSTALLOGRAPHY OF FERBERITE FROM BOULDER COUNTY, COLO., by Waldemar T. Schaller........... |
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| mineral................................... 2.9 Scheelite............................................................. r ............................. 45 Gold...................................................rhombic crystal faces, from Nugget mine, Gilpin County, Colo.-................... II. A, Wedge-shaped...rhombic crystal faces, from Nugget mine, Gilpin County, Colo.............................. IV. A, Hiibnerite...Rollinsville, Colo.; B, Hubnerite crystals from Regan mining district, 35 miles north of Osceola, Nev........... |
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| ..................................ix Chapter l Gold at Randsburg . ........................... l Chapter...(or) How They Got the Gold and Silver .............. 13 Chapter 3 Silver Mining at Red Mountain .......Tungsten Mining in the Atolia "Spud Patch" ....... 23 Chapter 5 Modem Gold Mining in the Rand District .....(,\_L/,- an Early Sketch Map of THE RAND MINING DISTRICT by McPnrrson abo�t 189' Fro"1 G..,. 'vi ...Bonanza: The Story of Early Randsburg, Mojave Desert Mining Camp. (Courtesy ofArthur H. Clark Company.) ; |
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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...State of Colorado through the Colorado Geological Survey Board and the Colorado Metal Mining Fund UNITED...__________________________ Principal rocks of the district.________________________ Pre-Cambrian rocks__..._____ Age_ __________________________________ Boulder Creek granite and related rocks. ____ Distribution |
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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 .................................... |
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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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| Auburn, Alabama 36849-5305 SCHEELITE CAMP BIRD MINE, OURAY COUNTY, COLORADO I n keeping with the theme...feature related to some practical application. Scheelite, a major ore mineral of tungsten, is one such...allowing for a rapid estimation of min eral purity. Scheelite is a tetragonal mineral, crystallizing in the...either penetration or contact twins is common. Scheelite is dense (6.1) and relatively soft (4.5-5.0)....{001}, and a subconchoidal to uneven fracture. Scheelite is optically posi tive and exhibits a variety |
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| 1960, pp. 1406-1428 SCHEELITE IN THE PRECAMBRIAN OGDEN GNEISSES OF COLORADO TWETO CONTENTS PAGE................................... 1406 1407 Scheelite occurrencesand distribution .............. • ............................................... Scheelite ............................................................................ Tarryall Springs district ......................................... Blackhawk......................... 1420 Copper Mountain district, Wyoming ............................... Other |
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| ...........................................47 Colorado ................................................rights, so remember you were told. If in doubt, a county map will tell you who the legal owner is. Good...to the California gold rush of 1849, this portion of Alabama experienced its own gold rush, largely unprofitable...unprofitable, although gold may still be panned in the regional streams. Most of the rest of the state...gemmy qualities for cutting and polishing. AUTAUGA COUNTY PRATTVILLE, N. 6 mi., and just E of the Birmingham |
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| ...........................................47 Colorado ................................................rights, so remember you were told. If in doubt, a county map will tell you who the legal owner is. Good...to the California gold rush of 1849, this portion of Alabama experienced its own gold rush, largely unprofitable...unprofitable, although gold may still be panned in the regional streams. Most of the rest of the state...gemmy qualities for cutting and polishing. AUTAUGA COUNTY PRATTVILLE, N. 6 mi., and just E of the Birmingham |
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| and other alkaline-related gold deposits in the southern Rocky Mountains, USA: in¯uence of regional tectonics...vein, breccia, disseminated, skarn, and porphyry gold deposits form a belt in the southern Rocky Mountains...spatially to the Colorado mineral belt (CMB). Other alkaline igneous rocks and associated gold deposits formed...Mountain front southward, from Cripple Creek in Colorado through New Mexico. All of these deposits are...important factor in the formation of all of the gold deposits was the near-surface emplacement of relatively |
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| HATCH, F.G.S., Consulting Mining Engineer; Past President, Institution of Mining and Metallurgy. Captain...Empire. No attempt has been made to give details of mining or metallurgical processes. HARCOURT, December...INTRODUCTION the remarkable effects of the war on mining and metal lurgy was the development of a keen...the lodes is nearly always sporadic, so that the mining and the estimation of reserves are rather irregular...and un reliable. In consequence of this the · mining has till recently been for the most part in the |
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| Index of Publications, Division of Mines and State Mining Bureau, 1880-1943 (Bradley 1945). Northern Provinces...area around Glass Mountain near the ModocSiskiyou county line. Also of minor importance is the extension...deposits of southeastern Oregon into northern Modoc County. Ultramafic rocks, largely altered to serpentine... Trinity River, Trinity County at the High Plateau mine in Del Norte County, and kammererite (clinochlore)...(clinochlore), as at the Veta Grande mine in Siskiyou County. The ultramafics also host occurrences of the massive |
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| Quartz-tungsten veins......._____________________ Quartz-gold veins.._____________________________ Manganese-lead-zinc..._________________ ___. Nevada ___________ Elko County. - ______ ... _ Star mine, Harrison Pass _____... Tuscarora Range _____ _ ._. ________ Humboldt County Golconda manganese-tungsten depositNorth workings...Lincoln County__-__-----_-----_-----___ Tern Piute district....... __ ___ ... Mineral County____-_______________...__ Rawhide district____ .________..__ Nevada Scheelite mine.. _ ______ Hooper No. 2 mine __ _____ _ _ |
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| PimaCountY--------------------------------------------Gold Bullion mine_____________________________________...claims_______________________________________ Pinal County _________________________ ------- ______ -----__..._____ ----------------------------__ Santa Cruz CountY---------------------------------------Santo Ni:iio...____ Yavapai CountY----------------------------------------------Copper Basin district _______ ------...mine ______ ------------------------------__ Copper Hill mine __________ ---------------------------Lorna |
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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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| . . . . . . . . . . . . . . . . . 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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| due to the war in the publica.tions relating to mining and metallurgical statistics. La1b,o ur, health...fe1~berite, «IDd is important as an 01·e mi11eral in Colorado, U.S.A. Tl1e difference, between hubn,e rite and...systematic, and expensive 0p-er}1tion s o,f t1nderground mining, milling and c.oncent1cttion . A la::r·ge amount...in Burma f1·om loose sl1rface deposits, but vein-mining wa,s begun before the war. The discove1·y of extenRive...Bolivia, and Nev\-T Sout.h \~Tales. By 1911, wolfram mining was thoroughly esta,blished in Ta.v oy, and an |
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| Plains state varies from nearly level farmland to hill ridges, increasing steadily in elev. From 1,000’...The commercial production of minerals, principally Gold, Silver, Copper, Iron, Lead, Manganese and Zinc...beds, excavations, etc.Selenite roses. BRULE COUNTY AREA: in the Oacoma zone of the Pierre Fm. On Elm...gray Barite rosette up to 5 or 6 inches. CAMPBELL COUNTY MOUND CITY, W to the Missouri R., regional hillsides...gravels, etc.petrified wood, wood opal. CORSON COUNTY LITTLE EAGLE: area ridges, slopes, stream beds |
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| 1 COUNTY REPORT HYSICAL >ci 8 PHYSICAL •CI. .Lib. IES TN 24 C3 1ERAL RESOURCES OF A34 1 IPINE...IPINE COUNTY, CA! IA -*ci?2®^?^a£~Vfes^A^Gw^i I ver Mou nta i nV-*- Digitized by the Internet...RESOURCES OF ALPINE COUNTY, CALIFORNIA by WILLIAM B.CLARK With sections on the Zaca gold-silver mine and...and the Leviathan COUNTY REPORT sulfur mine by James R. Evans 8 1977 CALIFORNIA DIVISION OF MINES...2 i DOCS. -US Frontispiece. Typical Alpine County scenery. View looking southeast across Twin Lakes |
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| ............................................. 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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| Co\·er photo: \\ 7 ulfenite, Rowley Mine, Maricopa County, 4 cm high specimen, Evan and Melissa Jones Collection...used mining districts as part of the locality description. These political and geographic district names...with a more descriptive term, metallic mineral district. This term shows the geochemical and mineralogical...reader to learn more about the geology of the district and to possibly predict the minerals that could...districts. Where possible, the metallic mineral district for each mineral locality is given for the mineral |
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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...Stanford University, Palo Alto. Colorado.........Prof. R. D. George, Boulder. Connecticut..... .Prof. William...North Carolina.. .Dr. Joseph Hyde Pratt, Chapel Hill. North Dakota... .Dr. A. G. Leonard, Grand Forks |
