 | Raschke, Markus B., Anderson, Evan J. D., Van Fosson, Jason, Allaz, Julien M., Smyth, Joseph R., Škoda, Radek, Persson, Philip M., Becker, Randy (2018) Rare-earth crystal chemistry of thalénite-(Y) from different environments. Mineralogical Magazine, 82 (2) 313-327 doi:10.1180/minmag.2017.081.044 | Journal (article/letter/editorial) | | Chemistry, and JILA, University of Colorado, Boulder, Colorado 80309, USA Department of Geological Sciences...Sciences, University of Colorado, Boulder, Colorado 80309, USA Inst. für Geochemie und Petrologie, ETH Zürich...Engineering, Colorado School of Mines, Golden, Colorado 80401, USA Yakima, Washington 98908, USA [Received...Okanogan County, Washington State, USA, in comparison with new analyses from the White Cloud pegmatite in the...the Pikes Peak batholith, Colorado, USA. The Golden Horn thalénite-(Y) occurs as late-stage sub-millimetre |  | | 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...of this district. A fifty foot high column (40 feet across at the base) of nearly-pure quartz projects...water at the bottom of the pit. The quartz core of the pegmatite was left standing in relief as the enveloping |  | | Journal (article/letter/editorial) | | and quartz, 9.9 cm across, Tree Root Pocket, Two Point claim, Pikes Peak batholith, Teller County. The...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) | | 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...(xenotime,monazite, allanite) are known from the pegmatite. The mineral is uniaxial positive, with c,.r:1...replacementsof primary pegmatite minerals in the White Cloud pegmatite near South Platte, Colorado.Other r...rare-earthmineralsfound in the pegmatite include gadolinite, allanite and yttrofluorite. The published |  | 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). |  | | 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 (issue) | | BIBLIOGRAPHY OF WATER-RELATED STUDIES, SOUTH PLATTE RIVER BASIN-COLORADO, NEBRASKA, AND WYOMING by Kevin F...GEOLOGICAL SURVEY Open-File Report 93-106 Denver, Colorado 1993 I JUL t 5 1993 U.S. DEPARTMENT Of THE...Copies of this report can be purchased from: District Chief U.S. Geological Survey Box 25046, Mail Stop... FIGURES Figure 1. Map showing location of South Platte River basin study unit 2. Keywords used in electronic... BIBLIOGRAPHY OF WATER-RELATED STUDIES, SOUTH PLATTE RIVER BASIN-COLORADO, NEBRASKA, AND WYOMING BY KEVIN F |  | | Report (issue) | | 379(3) X-ray Powder Pattern: Kingman, Arizona, USA. 3.104 (vs), 2.808 (m+), 5.52 (m), 3.79 (m), 3.276...gadolinite, zircon, magnetite, allanite, °uorite, quartz, Ä Distribution: In Sweden, from Osterby, Dalekarlien...rÄo nmaa pegmatite, Kangasala, Finland. From the Keivy massif, Kola Peninsula, Russia. In the USA, in the...the Baringer Hill pegmatite, 26 km west of Burnet, Llano Co., Texas; in the Snow°ake feldspar mine, Teller...Teller Co., and the White Cloud pegmatite, South Platte district, Je®erson Co., Colorado; and on the Guy |  | 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; |  | | 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...cavities, or they are associated with ,,adularia” and quartz (paragenetic type III). They include minerals of...primary magmatic Be-minerals within a single pegmatite district is exceptional and it is constrained by variable...amphibole (actinolite to rare magnesiohornblende), and quartz, forming mostly a medium-grained matrix. Typical |  | | 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 (volume) | | Geology and Hydrology, Front Range Urban Corridor, Colorado By FELICIE CHRONIC and JOHN CHRONIC GEOLOGICAL...Corridor. It was compiled at the University of Colorado, funded by the U.S. Geological Survey, and is...Institute bibliographies, as well as those of the Colorado Geological Survey. Most of the material listed...Federal Center, the Colorado Geological Survey office in Denver, the University of Colorado Library, or the...the Colorado School of Mines Library. These are available at the school where they were written. Microfilm |  | | Report (volume) | | . 234 " y { " ,-t .. .~,:",. I " , COLORADO "or.! _ +, (~ STATE OF .~ :'(' COL~ADO /... BULLETIN 40 RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BlaLlllGRAPHY by James L. Nelson-Moore,...Energy COLORADO GEOLOGICAL SURVEY DEPARTMENT OF NATURAL RESUURCES STATE OF COLORADO DENVER, COLORADO 1978...ete 11 st r ng of rad i aaet 1ve occurrences 1n Colorado, with a comprehensive blbi iography and bibliographic...on the Colorado Plateau sparked several periods of exploratIon that ultimately led to a mining "boom ll |  | | Journal (article/letter/editorial) | | approximately 0.3. it is found in a cleavelandite pegmatite at Heydalen ir~ T=~rdal, Telemark, S. Norway.... north of Tveit farm, in "I'erdal, Telemark,', south Norway. It occurs in a pegrnatite dyke, and only...rocks, supracrust~.l lepthes and gneisses. it lies south of the major outcrop of supracrusta! rocks belonging...are of two gcnerr~lions; the older are microcline-quartz peg-. rna.titc~ of fairly simple mineralogy, while...pale green arnazonite and smoky quartz. Larg~ cr,,,s~tals of quartz, area-. zonite feldspar, mic.,'ocline |  | | Report (volume) | | 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...Australasian Inst. Mining and Metallurgy Mon. Ser.-The Australasian Institute of Mining and Metallurgy Monograph |  | | 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 |  | | Journal (article/letter/editorial) | | microcline, albite, phlogopite, fluorite, rutile, quartz, monazite and REE fluocarbonates. The carbonatites...sodium during their developrnent nover, South Africa; south Gobi Desert, Mongolia) yet, (Hogarth and...Shannon (1976). rite but, other than sporadic quartz and very rare microline, totally lacks silicates...paper+hin veinlets. H is similar but contains about 5% quartz, some of which is in direct contact with dolomite...temperature of 300"C. The association dolomite-quartz in site 3 also suggests low temperature, and lack |  | | Report (issue) | | Birak in Saudi Arabia; the USSR; Norway; and the USA. At Jabal Tawlah, niobium and, to a much lesser extent...km north-northeast of Ash Sharma, in the Midyan district of northwest Hijaz (fig. 1). Microgranite forms...west-northwest end Rock veined with brown Iron-oxidebearing quartz veins JT-2 do. 9 m below crest of ridge on Its...basalt on north side of ridge, approximately 100 m south-southeast from the west-northwest end of the sill... One of the most radioactive areas JT-5 do. South side of sill near Its eastern end \verage appearing |  | | 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) | | very old origin, often without lrnown source. e.g. quartz or cinnabar. Current practice most often names... with all The color of most opaque minerals is white or gray in possible intermediate gradations. Luster...polished mineral surface, expressed in clase. 7 - quartz. 8 - topaz, 9 - corundum, 10 - dia- percentage...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. |  | | 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 |
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