 | | Book | | Twyfelfontein 7 AiAiba / farm Anibib 136 8 Grosse Spitzkoppe, Erongo 9 , .,/, loringa tree ...station Garub near Aus Nature conservation, Erongo 16 Welwitschia, Goboboseb Mountains 17 ....Northwest Region including Damaraland The Central Namib Desertand Escarpment The Spitzkoppen The Erongo Mountains...Copper Deposits The South The Pegmatitesin Central Namibia Luderitz and the Diamonds 44 49 241 254 272 275... Encyclopedia of the Mineralsof Namibia 443 Meteorites in Namibia Bibliography Index Photo credits |  | | Report (issue) | | Geological Survey of Namibia) MINISTRY OF MINES AND ENERGY GEOLOGICAL SURVEY OF NAMIBIA Director: B.G. Ho...Ho al BULLETIN 1 Type mineralogy of Namibia by Vaughan C. Daltry Editor: Clare Kennedy Galloway Obtainable...the Geological Survey P.O. Box 2168, Windhoek, Namibia Price Local (+GST) Abroad (Post Free) R20.00 R25... ______ ........ Abstract The type mineralogy of Namibia is reviewed. One hundred and thirty-nine (139)...Twenty-three (23) unnamed phases are also listed. Namibia ranks second to Zaire as the most productive African |  | | Catalog/List | | Wagner Collection Tourmalines & Fine Minerals Part 1 Front Cover Lot: 73099 Inside Front Cover Lot: 73036...Tourmalines & Fine Minerals, Part 1 June 7, 2015 | Dallas Signature® Floor Session 1 PRELIMINARY LOT VIEWING...Annex 1518 Slocum Street • Dallas, TX 75207 Session 1 Sunday, June 7 • 12:00 PM CT • Lots 73001–73302 Signature®...America at the Fletcher-Sinclair Mansion) Friday, May 1 – Saturday, May 2 • 10:00 AM – 5:00 PM ET Sunday,...WAGNER TOURMALINE & FINE MINERALS COLLECTION, AUCTION 1 The Session One MYANMAR (BURMA) For many years |  | | Journal (issue) | | Jan/Feb 2024 Vol.99, No.1 ROCKS MINE ."Iii[! iil"J www.tandfonline.com/vram Pegmatite Minerals & Gems ...Taylor & Francis Group, LLC. All rights reserved. No part of this publication may be reproduced, stored...than private research use. The publisher assumes no responsibility for any statements of fact or opinion...$12.9.5. JANUARY/FEBRUARY 2024 Volume Number 99 1 CKS INE 8 Introduction to TUCSON 2024: Celebrating...Cook 10 Southern California Pegmatite Gems Mark Mauthner 16 The Pegmatite Interest Group (PIG) Is Hog |  | | 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...by rhyolites ro and granites, and greisen-, pegmatite-, quartz-type veins; and iii) cavities formed...al., 2018; Fig. 1E). 6 Journal Pre-proof Fig. 1. Annotated photomicrographs illustrating grain shapes |  | | Report (issue) | | extraLapis English No. 3: Tourmaline Publisher Lapis International, LLC; East Hampton, CT Concept &...Licensed edition in the English language of extraLapis No. 6 Turmalin with permission of Christian Weise Verlag...Weise Verlag, Munich, Germany ISBN 3- 921656- 31 - 1 Acknowledgements The extraLapis English project...and ink render ing of elbaite crystals with lepidolite from the Golconda Mine in Minas Gerais, Brazil...Brazil by Eberhard Equit, 1993 extraLapis English No. 3 Tourmaline A Gemstone Spectrum Contributions by |  | | Journal (article/letter/editorial) | | 3749/canmin.1600010 A TECTONIC EVALUATION OF PEGMATITE PARENT GRANITES SARAH L. HANSON Adrian College...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...diagrams for these granites suggest that LCT granite-pegmatite systems originate in orogenic and perhaps less |  | | Journal (article/letter/editorial) | | content. Gray suolunite is the only color to show no observable Na. Although the exact mechanism for coloration...Secondary Phosphate Mineralization at the Crooker Gem Pegmatite, Newry, Maine. V. King1, L. Jonaitis2, and R....Pond Rd., Hanover, ME 04237. The Crooker gem pegmatite, Newry, Oxford County, Maine, has been mined sporadically...exploration and recovery of gem tourmaline, the pegmatite yielded a large number of species heretofore unknown...whose identities remain unknown. The Crooker gem pegmatite is exposed at the summit of Halls Ridge, a small |  | | Journal (issue) | | CONTENTS Page Feature Articles: The Coolgardie pegmatite field, Western Australia Mark I. Jacobson ......minerals associated with ironstones in the Olary region, South Australia P.M. Ashley, B.G. Lottermoser...90. Vol 3. No 2, December 1997 'l{ptes from the, 'Editor INDEX The Index to volume 1 & 2 is inserted...volumes, so the next one will appear with Volume 5(1). I would like to thank Judy Rowe for her excellent...rockhounds.com/leregne. BACK ISSUES & REPRINT OF ISSUE No.1. Due to popular demand the first issue of AJM has |  | | Journal (article/letter/editorial) | | THE TOPAZ-BEARING PORTION OF THE BROWN DERBY NO. 1 PEGMATITE, GUNNISON COUNTY, COLORADO State P. E. RosuNBn;... topaz-bearing portion of the Brown Derby No. 1 pegmatite, Gunnison County, Colorado, has been reconstructed...relationships in the light of the recent model for pegmatite genesisby Jahns and Burnham (1969). The coarse-grained...gravitational settling of topaa in the melt. Lepidolite and cleavelandite crystallized later from the...minor ones which lie within the Quartz Creek Pegmatite District (Staatz and Trites, 1955) about 17 miles |  | | Report (issue) | | ores and concentrates ______________________ Pegmatite lithium minerals.________________________________..._________________________________ Deposits of lepidolite and other lithium micas.____________ Deposits...Lake-Mohave area._____________________________ Pala pegmatite district.__--___--___-_-______--_______._ Arizona...localities of North America._._______ 345 TABLES TABLE 1. 2. 3. 4. Lithium mineral production of the United...Lake brines since 1938, and during earlier years lepidolite was mined in the Pala district. Other states |  | | Report (edition) | | Kimberley Diamond Company) Contents Abstract 1 Chapter 1 Introduction 3 Object and scope ................................................ 16 Section 1 Diamond Chapter 5 Diamond 19 Diamond — gemstone................................... 32 Marble Bar region ........................................................................................ 36 Cue region ..................................................................................... 36 Yalgoo region .............................................. |  | | Journal (article/letter/editorial) | | Houston, Texas 77036 artsmithite@msn.com Figure 1. The entrance and arch of the Palermo mine, North...partially blanketed by glacial deposits and outwash that no doubt cover other potential localities and prevent...before the turn of the twentieth century, but pegmatite prospecting and mining were revived during World...occurrences of the town in which they are located. No specific references are given for them, but most...Purchase), 3.5 miles W of North Chatham Village, pegmatite veins with cavities; several areas worked for |  | | Journal (issue) | | a lo j g ic a l Volume Eight/Number Two PEGMATITE ISSUE #1 p u b lis h e r ls * h n Q n i. • ; ' fe...83 by R. Lasmanis The Clear Creek Pegmatite: A Rare Earth Pegmatite in Burnet County, Texas............................................ Guest Editorial 70 Notes from the Editor..............................accompanied by a stamped, self-addressed envelope. No responsisubscriptions bmC8nbeassumedfwunsolicitedmateriaf...JjjJJf8TB0cI^rMaR ^S2o7T5blishedb*month,ybytheMinera,09lcal Recor<1,,nc’ p ° d e s ig n e d b y ^ Kay Engman Bowie Graphic |  | | Journal (article/letter/editorial) | | PEGMATITE MINERALS OF THE UNITED STATES DAVID M. SEAMAN American Museum of Natural History, New York...found in all types of pegmatite from the common granite type to the lithium pegmatite. Many localities have...diameter have been noted in the School Section pegmatite of Fremont county, Colorado. ROCKS AND MINERALS...gneisses, monzonites, and quartzite. It is rare in pegmatite as at shaft 18 near Valhalla, New York; at 119th...silicate, has been found as a rare mineral 13 in pegmatite at the Wet Weather quarry, Crestmore, Riverside |  | | Report (edition) | | FRONTISPIECE Tiger iron from the Ord Ranges, Pilbara region, displaying folded bands of dark brown hematite...eye jasper from the Mount Brockman area, Pilbara region. The sphere, approximately 35 cm in diameter, contains...(courtesy David Vaughan) Contents Abstract 1 Chapter 1 Introduction to gemstones in Western Australia....................................... 10 Section 1 Diamond Chapter 2 Diamond 13 Diamond properties.......................................... 34 Cue region............................................... |  | Novák, Milan, Čopjaková, Renata, Dosbaba, Marek, Galiová, Michaela VAŠINOVÁ, Všianský, Dalibor, Staněk, Josef (2015) Two Paragenetic Types of Cookeite From the Dolní Bory-Hatě Pegmatites, Moldanubian Zone, Czech Republic: Proximal and Distal Alteration Products of Li-Bearing Sekaninaite. The Canadian Mineralogist, 53 (6) 1035-1048 doi:10.3749/canmin.1400090 | Journal (article/letter/editorial) | | tourmaline, albite, nontronite, and chlorite in pegmatite No. 1 (proximal cookeite type), and in pockets lined...quartz in the Oldřich pegmatite (distal cookeite type), Dolní Bory-Hatě, Bory pegmatite district, Moldanubian... Electron microprobe data of cookeite from the No. 1 and Oldřich pegmatites yielded very similar results:...analysis— Li, Oldřich) of cookeite from both pegmatite dikes yielded an average of 2.22 wt.% Li2O (0...low Be p16 ppm and p1.2 ppm for pegmatite No. 1 and the Oldřich pegmatite, respectively. Strong hydrothermal |  | | Journal (article/letter/editorial) | | Geological Survey topographic maps. The entire pegmatite district is on U.S. public lands administered...land does require permission. Visitors to the pegmatite district are requested to pass through this land...private property, the Quien Sabe Ranch, owned by Murk 1. Jacobson, a consulting editor of Rocks & Minerals...& Minerals was titled “Beryl from the Catherine No. 1 Mine, Cusper Mountain, Natrona County, Wvoming ”...Shoshoni, is directly south and east of most of the pegmatite district. Access via that ranch, although more |  | | Journal (issue) | | RECORD JANUARY-FEBRUARY 1995 • VOLUME 26 NUMBER 1 • $10 Wayne & Dona Leicht, 875 North Pacific Coast...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...written lists (“Wulfenite, Red Cloud mine, Arizona, 1-inch, 500; 2-inch, $2; 2 inch, $3.50” etc.) W ouldn’t...WHOLESALE and RETAIL • • Fossil Show — FEB 3 - 1 1 261 u niv er sit y 1601 N. O racle #T u cson |  | | Journal (article/letter/editorial) | | subtype of the rare-element class M . N o v f i k 1 a n d P. P o v o n d r a 2 i Department of Geological...pockets, or associated with albite + lepidolite in massive pegmatite. Hambergite, danburite, datolite and...X-site, relative to elbaite from the lepidolite subtype. Lepidolite from elbaite pegmatites is close to...of the lepidolite subtype show highly variable compositions from lithian muscovite to lepidolite with a...of the parent medium, and reduced activity of P. 1 Permanent address: Department of Mineralogy and Petrography |  | | Journal (article/letter/editorial) | | yttrotantalite, sphalerite; Gundlebo -cleavelandite, lepidolite, topaz, sphalerite, fluorite. Both bodies, rn'hich...the pegmatites themselves. INrnolucrtoN I{any pegmatite bodies are enveloped by haloes developed by recrystallization...metasomatism of their wall rocks' Information on pegmatite exomorphismhas been summarizedby Jahns (1955,p...to the introduction of material from adjacent pegmatite . . . " However, Brotzen (1959,p. 59) points...rare examPleshave been observedin the numerous pegmatite districts studied by him. The purpose of this |  | | Journal (article/letter/editorial) | | Arbor, Michigan. Ansrnecr The Brown Derby No. 1 pegmatite, of Gunnison County, Colorado, contains a highly...muscovite, sericite, and five major varieties of lepidolite. Each of the micas was formed in a unit of characteristic...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...important swarm of dikes in the Quartz Creek pegmatite district, is well exposedon the upper slopesof |  | Liu, Chen, Wang, Ru-Cheng, Wu, Fu-Yuan, Xie, Lei, Liu, Xiao-Chi, Li, Xing-Kui, Yang, Lei, Li, Xue-Jiao (2020) Spodumene pegmatites from the Pusila pluton in the higher Himalaya, South Tibet: Lithium mineralization in a highly fractionated leucogranite batholith. Lithos, 358. 105421 doi:10.1016/j.lithos.2020.105421 | Journal (article/letter/editorial) | | Xing-Kui Li1 , oo f Lei Yang2 , Xue-Jiao Li1 pr 1: State Key Laboratory for Mineral Deposits Research...granite, albite granite, and pegmatites. Numerous pegmatite dikes have intruded the Higher Himalayan crystalline...highly fractionated pegmatites. The Chomogu No. 1 pegmatite is a well- zoned dike that hosts beryl, columbite...Li Jo u mineralization. Primary spodumene (Spd-1) crystallized in the magmatic stage, whereas secondary...in the Himalayan leucogranite belt. Keywords : Pegmatite, Li mineralization, spodumene, columbite–cassiterite |  | | 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...Thulium (Tm, Z = 69) VI Preface Ytterbium (Yb, Z = 70) (Sm, Z = 62) Samarium (Lu, Z = 71) Lutetium (Eu...another oxide, "yttria", from minerals found in the pegmatite at Ytterby, Sweden. Both supposed oxides were |  | Černý, Petr, Chapman, Ron, Ferreira, Karen, Smeds, Sten-Anders (2004) Geochemistry of oxide minerals of Nb, Ta, Sn, and Sb in the Varuträsk granitic pegmatite, Sweden: The case of an “anomalous” 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 “anomalous” columbite-tantalite trend PETR ČERNÝ,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 Varuträsk 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...attained saturation levels only in a late albite + lepidolite-bearing unit under conditions of high activity |
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