 | | Journal (article/letter/editorial) | | AssrnA.cr Columbites may be radioactive because: 1) they contain isomorphous t/+(and Thar?) substituting...Radioactive columbite is related to a particular pegmatite district, its paragenetic position, and the presence...the opaque pegmatite minerals in polished section. Species studied included columbite-tantalite, stibiotantalite...the discovery, at the Mica Lode pegmatite in Fremont County, Colorado (Heinrich, 1948), of a relatively...Phoenix Memorial Project, Nos. 150 and 204. 1 Contribution No. 250 from the Mineralogical Laboratory, Department |  | | Journal (article/letter/editorial) | | JULY_AUGUST, 1967 MICAS OF THE BROWN DERBY PEGMATITES, GUNNISON COUNTY, COLORADO1 and,Mineralogy,The E...Michigan. Ansrnecr The Brown Derby No. 1 pegmatite, of Gunnison County, Colorado, contains a highly diversified...elements with respect to their positions in the pegmatite and probably with respect to relative time of...replacement layers formed by reactions between zonal pegmatite rock and deuteric, residual pegmatitic fluids...closed-system environment. INrnotucrtoN The Brown Derby group of pegmatites,Iong known as one of the |  | | Journal (article/letter/editorial) | | was done by the senior author in New Mexico and Colorado at various times during the summers of 1948, 1949...GeologicalSurvey; + Contribution from the Department Michigan, No. 169. of Mineralogy and Petrography, University...154), "There is an abundanceof coarsegranite pegmatite bouldersin the immediate neighborhood of the quarry...unusually large scale . . . is due to the action of pegmatite intrusions upon the materials of the gneisslimestone...contact zone." Specimensof rose mica-bearing pegmatite from Bolton show the following megascopiczonal |  | | Journal (article/letter/editorial) | | 3749/canmin.1600010 A TECTONIC EVALUATION OF PEGMATITE PARENT GRANITES SARAH L. HANSON Adrian College...Department, 110 S. Madison St., Adrian, Michigan 49221, USA ABSTRACT Pegmatites containing rare elements can...not fall neatly into these categories and include (1) those that exhibit mineralogical and chemical characteristics...suggested by the acronyms. The relationship between pegmatite family and granite tectonic type were re-examined...published granite compositions as a proxy for initial pegmatite composition, with special regard to the orogenic |  | | Journal (article/letter/editorial) | | coupling various acidic groups to silicon wafers. We had no expectation of creating a geometric lattice of functional...February 2015 MINERALS FROM THE HYATT MINE, TALCVILLE, ST. LAWRENCE COUNTY, NEW YORK. S. C. Chamberlain, Department...Zinc Corporation of America operates the new Hyatt mine on an orebody just south of the Oswegatchie River...Talcville in the Town of Edwards, St. Lawrence County, New York. The orebody consists of massive iron-rich...of sepiolite in the form of mountain leather, the mine has not, until recently, produced anything of particular |  | | Report (volume) | | Minerals of Colorado: A 100- Year Record By EDWIN B. ECKEL GEOLOGICAL SURVEY BULLETIN 1 1 14 A summary...knowledge____________________________________ Future of Colorado mineralogy______________________________________...______________ ______ 1 1 3 4 6 7 11 12 16 28 31 364 ILLUSTRATION PLATE 1. Map showing selected...mineral deposits of Colorado ________________________________ In pocket III NOTE Plate 1, map showing selected...mineral localities and metallic mineral deposits of Colorado, has not been included in this reprint. Many of |  | | Book | | Natural, Cultured and Imitation Alexander E. Fam Quartz Michael O'Donoghue Also availablefrom Butterworth-Heinemann...Butterworth-Heinemann Ltd 1992 All rights reserved. No part of this publication may be reproduced in any...xi Profile xii 1 Topaz - Historical perspectives 1 Introduction 1 Etymology of topaz 1 Topaz in ancient...and red topaz 71 Localities 72 Genesis 72 Orange-brown, or sherry coloured 'imperial' topaz Irradiation...Preto, Brazil, in the world gem trade. In addition, no one had previously made a comprehensive study of |  | | Book | | Special Publication No. 7 ___ __fu_r_G--eo_l_o-gy__________ o_f_t_h_e_S_o_c_I·e_ry Deposits to Mineral...Petr Cerny, and Francis Saupe. (Special publication no. 7 of the Society for Geology Applied to Mineral...Society for Geology Applied to Mineral Deposits; no. 7. TN490.A2L36 1989 669' .29-dc19 88-31553 This...nearly all metals and the inevitable closing of many mining operations, it is a matter of the industry's survival...decision, not only is a handy volume affered to the mining and processing community but also duplication of |  | ÄernĂœ, Petr, Chapman, Ron, Ferreira, Karen, Smeds, Sten-Anders (2004) Geochemistry of oxide minerals of Nb, Ta, Sn, and Sb in the VarutrĂ€sk granitic pegmatite, Sweden: The case of an âanomalousâ columbite-tantalite trend. American Mineralogist, 89 (4) 505-518 doi:10.2138/am-2004-0405 | Journal (article/letter/editorial) | | granitic pegmatite, Sweden: The case of an âanomalousâ columbite-tantalite trend PETR CÌERNĂ,1,* RON CHAPMAN...CHAPMAN,1 KAREN FERREIRA,1 AND STEN-ANDERS SMEDS2 Department of Geological Sciences, University of Manitoba...36 Uppsala, Sweden 1 ABSTRACT The complex, petalite-subtype VarutrĂ€sk pegmatite in the Proterozoic rocks...is, as a whole, rather poor in Nb and Ta. The pegmatite consolidated in eight units, but the (Nb,Ta)-oxide...abundance of native antimony and stibarsen in the pegmatite, and the absence of Bi-bearing minerals. Rare |  | | Journal (issue) | | RECORD JANUARY-FEBRUARY 1995 âą VOLUME 26 NUMBER 1 âą $10 Wayne & Dona Leicht, 875 North Pacific Coast...Menzies Pink topaz from the Thomas Range, Juab County, U ta h .........................................to 4 cm, on matrix, from Ghundao Hill, Mardan district, Pakistan. F. John Barlow collection; photo by...edition is still reasonably priced, at $18 plus $1 postage ($2 foreign). We had originally planned to...College in Northfield, Minnesota, and made off with no less than 626 museum-quality specimens of minerals |  | | Journal (article/letter/editorial) | | This review indicates two composition fields, the 1 Journal Pre-proof first is that of hydrothermal...secondary hydrothermal and lP vapor-phase topaz. 1. Introduction na Keywords: topaz-bearing rocks;...F-rich topaz is typically confined to (see Table 1): i) highly evolved felsic igneous rocks enriched...shallow-intrusive textures are composed almost entirely of quartz and of topaz (Johannson, 1932); ii) late-stage...rhyolites ro and granites, and greisen-, pegmatite-, quartz-type veins; and iii) cavities formed by the |  | | Book | | Congress Control Number: 2007939782 All rights reserved. No part of this work may be reproduced or used in any... .. ............. ..... ..... ....... 6 Chapter 1: Introduction âą Discovery and Exploitation of Uranium...generally meaningful to most mineral collectors: 1. Primary minerals; 2. Secondary minerals; 3. Other...their formation and general characteristics. Because no single book can do justice to the vast literature...Gilbert Gautier; Eric Greene, Treasure Mountain Mining; Leonard Himes, Minerals America; Shelley and Dan |  | | Book | | 42 C-BE WITHDRAWN FROM STOCK QMUL LIBRARY STOCK No. 55392 QMC 315880 8 llllllllll l/11111111111111"...slightly more than 1,700,000 tons \1/as produced domestically. 1-'Ieasured, indicated, and inferred uraniun1...mid-1957, of vvhich 70% is in New Mexico, 16% in Colorado, Utah, and Arizona, and 8% in Wyo1ning. These...minerals exploration, not only a1nong themselves but \1/ith spectacular success also with "weekend" and professional...mass efforts vvere organized in the United States, \1/here in 1955 some 10,000 laymen and prospectors, replete |  | | Journal (issue) | | , and D. R. Cook Hyalite from the Spruce Pine District, North Carolina ................................Pretoria Belgium: Paul Van Hee Deuzeldlaan 16-bus 1 B-2120 Schoten England: Roger S. Harker 2 Wellsic...of the editor. suggestions for authors See vol.9, no.3, p. 135, or write to the editor for a copy. The...permanence, early issues of the Record will probably fare no better. However, in recent years the Record has been...Showâ 1 9 7 8 / Some specimens from this unique private collection ore currently available. 1 4 2 2 |  | | Book (edition) | | 74-1155 ISBN: 0-442-26820-3 All rights reserved. No part of this work covered by the copyright hereon...of minerals. Includes bibliographical references. 1. Mineralogy-Dictionaries. I. Rapp, George Robert,...author. II. Weber, Ju”us, joint author. III. Title. 1 QE355.R6 549 .03 74-1155 ISBN 0-442-26820-3 151044...illustrations for AXINITE, Hyuga, Japan (12, column 1) and AZURITE, Concepcion del Oro, Zacatecas, Mexico...Vesuvius, Italy (12, column 2) and SEMSEYITE, Julcani mine, Huancavelica, Peru (#3, column 2). Color, page |  | | Book (edition) | | Morocco; (center, left) wulfenite, San Francisco mine, Sonora, Mexico; (center) ameihyst, Veracruz, Mexico;...rnodochrosite, NâChwaning mine, South Africa; (lower left, center) wulfenite, Red Cloud mine, Arizona; (lower...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 ...Number 89-5633 ISBN 0-442-27681-8 All rights reserved. No part of this work covered by the copyright hereon | | | Book (edition) | | Morocco; (center, left) wulfen ite San Francisco mine, Sonora, Mexico; (center) amethyst, Veracruz, Mexico;...Mountains, Utah; (lower le ft) rhodochrosite, N'Chwaning mine, Sou th A frica; {lower left, center) wulfenite...Van Nostrand Reinhold Book -- . DATE DUE f,J+B 1 3 2Ul$J . . ~-âąn ~ NUV V ',- /..VI,;, âą I J...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 |  | | Book | | con-1 Web: ,:v,v,v.scb ifferbooks.con1 Copyright © 2016 by Robert J. Lauf All rights reserved. No pan.................................. 306 . APPENDIX 1 OBSOLETE NAMES, VARIETAL NAMES, AND SYNONYMS .......is a fue l for reactors to produce electricity, mining operati ons. Robert Lau f presents here a highly...species are no\.V being reported at the rate of several thorium mineralogy. each year, v.1 ith 1nost of...understand the specimens in his or her collection. It ,1/ill also be of use to the exploration geologist who |
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