 | | Journal (article/letter/editorial) | | looking northwest acro88 the cliff’s of Glen Cove to South Park and the Tarryall Mountains. Researchers have...northeasterly-trending continentul Figure 2. Geologic map of the Colorado Front Range showing the Precambrian metamorphic...1978; Karistrom 1978; Lanthier 1978). Farther south in Colorado, sediments accumulated in decper-water rocks...Survey into “Early, Middle, and Late” Eras. In Colorado we because of the subsequent folding and overthrusting...subduction zone and possibly the creation Era in Colorado and Wyoming of a volcanic island arc. Carpenter |  | | Report (chapter) | | the LIBRARY South Platte District, Colorado · by Wm. B. Simmons and E. Wm. Heinrich Colorado Geological...Denver, Colorado I 1980 Front cover: Wide Angle photograph of the Oregon No. 2~ pegmatite, South Platte...Platte pegmatite district, Colorado. This striking example graphically illustrates the exceptionally welldeveloped...structural zonation of the pegmatites of this district. A fifty foot high column (40 feet across at the...the bottom of the pit. The quartz core of the pegmatite was left standing in relief as the enveloping |  | | Journal (article/letter/editorial) | | 2000 Lakeshore Drive, New Orleans, Louisiana 70148, USA Sarah L. HANSON Geology Department, Adrian College... 110 S. Madison Street, Adrian, Michigan 49221, USA Alexander U. FALSTER and Karen L.WEBBER Department...2000 Lakeshore Drive, New Orleans, Louisiana 70148, USA Abstract Pegmatites enriched in the rare-earth elements...Wisconsin through Colorado to Arizona. Four widely geographically spaced pegmatite districts that are...are compared and contrasted in this study. The pegmatite districts include the circa 1.5 Ga Wausau syenite |  | | Journal (article/letter/editorial) | | AMERICAN MINERALOGIST, DOVERITE FROM COTOPAXI, COLORADO A. A. LnvrNSoNreNl R. A. Bonup, The Dow Chemical...synchisite, has been found at the Henry pegmatite, Cotopaxi, Colorado, in very small amounts intimately associated...restricted to late-stagealteration products of monazite,xenotime, gadolinite and other rare-earth mineralsl fluorite...rare-earth minerals (xenotime,monazite, allanite) are known from the pegmatite. The mineral is uniaxial...subsequentlyfound to be a mixture of doverite, qlartz, xenotime,hematite, bastnaesiteand leucoxene.Smith el al |  | | Journal (article/letter/editorial) | | Two Point claim, Pikes Peak batholith, Teller County. The Collector’s Edge specimen, Jeff Scovil photo...Mail Stop 150, Box 25046 Federal Center Denver, Colorado 80225 pmodreski@usgs.gov C olorado is, of course...prohibitions on collecting or to private land or mining claims for which permission has been obtained....been written as guides to mineral collecting in Colorado. A classic, which went through three major editions...1951 version with a slightly different title), is Colorado Gem Trails and Mineral Guide, by Pearl (1951, |  | | Journal (article/letter/editorial) | | COMPROMISEGROWTHSURFACESON PEGMATITE MINERALS VeNcB Havr.rns American Institute of Research,Gold.en,Colorado. Many crystals...crystals of pegmatite minerals display growth surfaces that form polygonal, step-sidedpyramids. These are...the anomalous pyramidal forms observedon some pegmatite minerals are compromisesurfaces.The steps observedon...changestook place. Both types are observedon some pegmatite minerals.rt is suggestedthat the presenceof steps...are the result of thermal convectionwithin the pegmatite chamber during crystallization. Thus a crystal |  | | Report (volume) | | Minerals of Colorado: A 100- Year Record By EDWIN B. ECKEL GEOLOGICAL SURVEY BULLETIN 1 1 14 A...Branch of Distribution, U.S. Geological Survey, 1200 South Eads Street, Arlington, VA 22202 CONTENTS Page...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 |  | | Journal (issue) | | Colorado Springs Mineralogical Society Founded in 1936 July 2015 PICK&PACK Vol 55 ...... Number 6 Inside...Jacobson Topic: Pegmatitic Rare-earth Minerals of Colorado: Species and Identification Refreshments provided...Friends of Mineralogy, Colorado Chapter. Mark has collected rare earth minerals in Colorado, Texas, Wyoming...Minerals of Colorado: Species and Identification Most of the pegmatitic rare-earth minerals in Colorado are found...found in the South Platte district, Jefferson County; St. Peters Dome district, El Paso County, Trout Creek |  | | Report (volume) | | - - - - - - May be euxenite or obruchevite- - Xenotime- Y P04 - - - - - - - - - - - - -...Museum Recs.-Albany Museum, Records. Grahamstown, South Africa. Am. Acad. Arts and Sci., Proc.-American... Washington, D.C. Am. Inst. Mining Engineers Trans. See Am. Inst. Mining Metal!. Petroleum Engineers...Engineers Trans. Am. Inst. Mining Metall. Engineers Trans. See Am. Inst. Mining Metall. Petroleum Engineers Trans...Trans. Am. Inst. Mining Metal!. Petroleum Engineers Trans.-American Institute of Mining, Metallurgical |  | Collins, Donley S., Cobban, Robert R., Foord, Eugene E., Murphy, Jack A. (1989) Bibliography for update and revision of U.S.G.S. Bulletin 1114, Minerals of Colorado -- a 100 year record, by Edwin B. Eckel, Part A - Paper copy --Bibliography data file disks. Open-File Report Vol. 1989 (89-206) US Geological Survey doi:10.3133/ofr89206a | Report (issue) | | Survey Denver, Colorado Department of Geology, Denver Museum of Natural History Denver, Colorado NOTE FOR...revision of U.S.G.S. Bulletin 1114, Minerals of Colorado A 100 year record, by Edwin B. Eckel By Donley...Prepared in cooperation with Friends of Mineralogy - Colorado Chaptar, and the Denver Museum of Natural History...references dealing with the mineralogy of the state of Colorado. It is part of a more than 10 year effort to update...and revise U.S.G.S. Bulletin 1114, Minerals of Colorado: A 100 year record, by Edwin B. Eckel (1961). |  | Škoda, Radek, Plášil, Jakub, Jonsson, Erik, Čopjaková, Renata, Langhof, Jörgen, Galiová, Michaela Vašinová (2015) Redefinition of thalénite-(Y) and discreditation of fluorthalénite-(Y): A re-investigation of type material from the Österby pegmatite, Dalarna, Sweden, and from additional localities. Mineralogical Magazine, 79 (4) 965-983 doi:10.1180/minmag.2015.079.4.07 | Journal (article/letter/editorial) | | re-investigation of type material from the Österby pegmatite, Dalarna, Sweden, and from additional localities...ABSTRACT Using type material from the Österby pegmatite in Dalarna, Sweden, the chemical composition and...in Sweden; White Cloud and Snow Flake in Colorado, USA; the Guy Hazel claim in Arizona, USA; Suishoyama...a granitic pegmatite quarry at Österby, Dalarna, in the Bergslagen ore province of south central Sweden...the sense of Černý (1991)] type: the Åskagen pegmatite quarry, Sweden (Sjögren, 1906; Kristiansen, 1993; |  | | Report (issue) | | various separates are gagarinite, yttrofluorite, xenotime, and fergusonite. All are yttrium-group, rare-earth...Birak in Saudi Arabia; the USSR; Norway; and the USA. At Jabal Tawlah, niobium and, to a much lesser extent...rare-earth minerals xenotime and fergusonite were analysed for yttrium. Xenotime contained from 36 to...km north-northeast of Ash Sharma, in the Midyan district of northwest Hijaz (fig. 1). Microgranite forms...basalt on north side of ridge, approximately 100 m south-southeast from the west-northwest end of the sill |  | | Journal (article/letter/editorial) | | Moldanubian Zone occurring between Třebíč and Vladislav south of the Třebíč fault. Primary magmatic Be-minerals...Be-minerals crystallized mainly in massive pegmatite (paragenetic type I) including common beryl I, helvite-danalite...primary magmatic Be-minerals within a single pegmatite district is exceptional and it is constrained by variable...Novák and Filip 2010). Mixed NYF–LCT Li-bearing pegmatite of Kracovice contains primary hambergite and secondary...granitic pegmatites were discussed. durbachite pegmatite-rich areas KRA Be-rich pegmatites N Drosendorf |  | | Journal (article/letter/editorial) | | complete destruction of magmatic monazite and xenotime during interaction with a F-CO2 -Ca-bearing, late-magmatic...minerals such as allanite, monazite, apatite, xenotime, zircon, thorite, and uraninite (e.g. Bea, 1996;...earlier records of synchysite from the PyoÈroÈnmaa pegmatite, Finland, and the Grebnik bauxites, Yugoslavia...1960), where it occurs in aggregates mixed with xenotime, hematite, and quartz. Other occurrences of synchysite-(Y)...1959); (2) the replacement unit of the Henry pegmatite, Colorado, where it is intimately associated with cenosite |  | | Book (edition) | | with all The color of most opaque minerals is white or gray in possible intermediate gradations. Luster...abbreviations: Rep. (republic), prov. (province), co. (county), munic. (municipio), pref. (prefecture), dept...dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....always included in text, except in the cases of the USA, UK, and the provinces Ontario and Quebec in Canada...localities of magmatic origin (in the sequence North and South America and Greenland, then Europe, Asia, Africa |  | | Journal (volume) | | brief paper about findings of giant minerals in the South Urals. This journal is of interest for mineralogists...A., Troshkina A.N. Cogenetic zircon, monazite, xenotime, and fluorapatite from apopicritic phlogopite-magnesite...Notes Kolisnichenko S.V. Minerals-Giants of the South Urals . . . . . . . . . . . . . . . . . . . . ....1–6 cm in size; the color is grayish to yellow-white. Aegirine forms prismatic, often deformed, black...parts of the laptevite-(Ce) crystals turned into a white porcellanous X-ray-amorphous substance, and the |  | | Report (issue) | | X-ray crystallography of wavellite from Jackson County, Wis., and their geologic implications, by Harry...from yttrofluorite in the White Cloud pegmatite, South Platte area, Colorado, by J. W. Adams and W. N...structural development at Elk Hills oil field, Kern County, Calif., by J. C. Maher, R. D. Carter, and R. J...of the Edna Mountain Formation in northern Elko County, Nev., by R. R. Coats and Mackenzie Gordon, Jr...Paleozoic oceanic crust in the Upper Chulitna district, west-central Alaska Range, by A. L. Clark, S |  | | Report (volume) | | Fillmore County: Pederson, C. A. New Jersey, Dover district, magnetite: Sims, P. K., 1. South Dakota,...geology. Iron, Dover district, magnetite: Sims, P. K., 1. Iron. New Jersey, Dover district, magnetite: Sims...society. A.I.M.E. Trans.-American Institute of Mining, Metallurgical, and Petroleum Engineers Transactions...Ontario. Canadian Inst. Mining and Metallurgy Trans.-Canadian Institute of Mining and Metallurgy Transactions...-Canadian Mining Journal. Gardenvale, Quebec. Canadian Min. Metall. Bull.-Canadian Mining and Metallurgical |  | | Report (volume) | | Crossroads: Lyons, P. L., 4. Gilbert H., 10. Colorado, South Silverton area: Expanding horizons: Lay, R...the future: Just, E. ing: Burwell, E. B., Jr., 4. Mining geology, retrospect and Index fossils: Stephenson...6. L. R. , 6. Mineralogy, chemical, problems: Pegmatite phosphates, problems: Fleischer, M., 6. Fisher..., 11. D. J. Rocky Mtn. geosyncline in Canada: Colorado Plateau: Wengerd, Warren; P. S., 4. S. A., 6.... Landform interpretation, stereoSearch for new mining districts: Nolan, T. B., 1. pairs: Powers, W. E |  | | Book (edition) | | mostly of large specimens, as well as 104 black-and-white photographs 45 new crystal drawings of rare species...rnodochrosite, N’Chwaning mine, South Africa; (lower left, center) wulfenite, Red Cloud mine, Arizona; (lower right...Encyclopedia of minerals Sagiiache County Pu blic Library Saguache , Colorado DEMCO For Reference Not to...Wendell E. Wilson Library Saguache County Public Saguache, Colorado VAN NOSTRAND REINHOLD New York ...England Thomas Nelson Australia 102 Dodds Street South Melbourne, Victoria 3205, Australia Nelson Canada | | | Book (edition) | | mostly of large specimens, as well as 104 black-and-white photographs • 45 new crystal drawings of rare species...Encyclopedia of minerals ~~cbe County Public Library Saguache, Colorado OEMCO For Refere nee Not to...Sagtiache Co1tntr Publlc I...ibran' Saguache, Colorado ~ VANNOSTRAND REINHOLD ~ - - - - N e w York...England Thomas Nelson Australia 102 Dodds Street South Melbourne, Victoria 3205, Australia Nelson Canada...Cal and Kerith Graeber Cureton Mineral Company Colorado School of Mines cw Charles and Marcelle Weber |  | | Book (edition) | | Mineralogy, Museum of Geology South Dakota School of Mines & Technology Rapid City, South Dakota GEORGE ROBERT...of weakness caused by deformation or twinning. pegmatite Very coarse-grained granitic rock representing...the Fuernrol No. 2 mine, Temple Mountain, Emery County, Utah; also sparsely disseminated in uraniferous...the Cave Hills and Slim Buttes areas, Harding County, South Dakota. BEST REF. IN ENGLISH: Thompson, M. E...OCCURRENCE: Occurs in Colorado at the Pelican Dives rnine , Silver Plun1e district, and at the Little Emma |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | B. Hoover: U.S.G.S., Federal Center, Lakewood, Colorado. John M. Hughes: Dept. of Geology, Miami University...Smithsonian Inst., Washington, D.C. Alan Pring: South Australian Museum, Adelaide, SA, Australia. Gunnar...Louise Reif: U. S. G. S., Federal Center, Lakewood, Colorado. Charles B. Sclar: Dept. of Earth Sciences, Lehigh...University of Arizona, Tuscon, Arizona. John S. White: Stewartstown, Pennsylvania. Hans J. Wilke: Eppertshausen/Hessen... except where noted. Labels on the axes have a white background, and when axes point toward the observer |  | | Report (issue) | | A293-A298 of this chapter. Numerous Federal, State, county, and local agencies and other organizations and...structural studies ............. . Precambrian rocks in Colorado ............... . Geologic studies ............. North Carolina ............................ . South Carolina ......................•...... Georgia .... Arizona ................................. . Colorado ................................ . Kansas ......resources-Continued Rocky Mountain region-continued South Dakota •..•...•......•....•.•........ Utah .•.• |
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