 | | Journal (article/letter/editorial) | | ROBERT B. COOK Department of Geology and Geography Auburn University Auburn, Alabama 36849 cookrob@auburn...collector knows, many of the finest gem minerals and most perfectly crystallized mineral specimens occur...quartz veins, and metal deposits. The pockets of pegmatites can be particularly prolific, and some districts... such as those in San Diego County, California, and many of those in Minas Gerais, Brazil, are noted...colored tourmaline, beryl, and spodumene from such occurrences grace many museum and private collections, as |  | KĂźster, Dirk, Romer, Rolf L., Tolessa, Dandena, Zerihun, Desta, Bheemalingeswara, K., Melcher, Frank, OberthĂźr, Thomas (2009) The Kenticha rare-element pegmatite, Ethiopia: internal differentiation, UâPb age and Ta mineralization. Mineralium Deposita, 44 (7) 723-750 doi:10.1007/s00126-009-0240-8 | Journal (article/letter/editorial) | | Kenticha rare-element pegmatite, Ethiopia: internal differentiation, UâPb age and Ta mineralization Dirk KĂźster...Neoproterozoic Adola Belt of southern Ethiopia, is a highly fractionated, huge (2,000 m long and up to 100 m thick)...spodumene subtype of the rareelement pegmatite class and belongs to the lithiumâcesiumâ tantalum petrogenetic...granitic lower zone, spodumene-free intermediate zone, and spodumene-bearing upper zone. A monomineralic quartz...570 ppm), Cs (up to 730 ppm), Ga (up to 71 ppm), and Ta (up to 554 ppm). Similar trends of increasing |  | | Journal (article/letter/editorial) | | Rocks of the Negele Area, Southern Ethiopia Tadesse Yihunie', Mamoru Adachi2 and Makoto Takeuchi2 Geological...Geological Survey of Ethiopia, P.O. Box 2302, Addis Abeba, Ethiopia, E-mail: yihunie63yahoo.com Department...Department of Earth and Planetary Sciences, Graduate School of Environmental Studies, Nagoya University, Nagoya...Kenticha, Alghe and Bulbul litho-tectonic domains in the Negele area of southern Ethiopia. Structural features...features and fabrics in these rocks were developed during north-south folding (Dl), thrusting (D2)and shearing |  | | Book | | of East Africa Burundi, Kenya, Rwanda, Tanzania and Uganda Bruce Cairncross Published by Struik Nature...penguinrandomhouse.co.za and join the Struik Nature Club for updates, news, events and special offers. First...Reproduction by Studio Repro and Hirt & Carter Cape (Pty) Ltd Printed and bound in China by RR Donnelley...sustainable future for our business, our readers and our planet. This book is made from Forest Stewardship...schist matrix, 4.3 cm - Bruce Cairncross specimen and photo; Page 5: (top) Reticulated aggregates of twinned |  | | Journal (article/letter/editorial) | | DAVID LONDON ConocoPhillips School of Geology and Geophysics University of Oklahoma Norman, Oklahoma...dlondon@ou.edu Part 4 Reading Pegmatites What QUARTZ and FELDSPARS Say T his is the fourth of several articles...are meant to inform mineral miners, collectors, and amateur scientists about the geologic environments...which they form. The series continues with quartz and the feldspars. Dr. David London is a Stubbman-Drace...Professor, Norman R. Gelphman Professor of Geology, and director of the Electron Microprobe Laboratory at |  | | Journal (issue) | | Mineral and Fluorescing Beauty By Bob Jones 50 58 ENCHANTING HERKIMER HUNTS Collecting Diamonds and Making...Making Memories 38 GLEN INNES AND INVERELL BLUE By Antoinette Rahn REGULAR COLUMNS Field Notes ........Road Report .................46 By Jenni Clark and Leigh Twine Rock Science .........................Outlook ............74 A Sneak Peek at A New Column and Series SUBSCRIPTION QUESTIONS? Rock & Gem (ISSN 0048-8453...75244. Periodicals postage paid at Dallas, TX 75260 and at other mailing offices. Printed in U.S.A. Copyright |  | | Book (volume) | | Al-Shanti Dean I. A. G. BULLETIN No. 3 EVOLUTION AND MINERALIZATION OF THE ARABIAN-NUBIAN SHIELD Proceedings...Library Cataloguing in Publication Data Evolution and mineralization of the Arabian-Nubian shield. - (King...Hussein, N. J. Jackson, M. M. Khuda, C. R. Ramsay and M. J. Roobol PRECAMBRIAN TECTONICS OF NORTH-EAST...eastern Sudan and Egypt consists of abundant granites and granodiorites, arc-type volcanics, and well-authenticated...the Precambrian in the Mozambique belt in Kenya and Tanzania consists of high-grade metamorphic rocks |  | | Journal (issue) | | com ⢠E-mail: leicht@kristalle.com Photo by Harold and Erica Van Pelt, Los Angles Publisher & Editor-in-Chief...Switzerland Jeffrey A. Scovil Phoenix, AZ Harold and Erica Van Pelt Los Angeles, CA Librarian Curtis P...circulation manager for rates.) â˘Libraries, Companies and Institutions (worldwide): $190 for one year. *Continued...85741. Periodicals postage paid at Tucson, Arizona and additional mailing offices. POSTMASTER: Send address...well-known Australian mineral dealer during the 1970âs and 1980âs, died in hospital in the Victorian town of |  | | Journal (issue) | | Switzerland Jeffrey A. Scovil Phoenix, AZ. Harold and Erica Van Pelt Los Angeles, CA March-April Volume...Thirty-five, Number Two Articles The sclerometer and the determination of the hardness of minerals . ...circulation manager for rates.) ⢠Libraries, Companies and Institutions (worldwide): $150 for one year. *Continued...85741. Periodicals postage paid at Tucson, Arizona and additional mailing offices. POSTMASTER: Send address...established to collect, store, study, and make available to scholars and the general public objects deemed |  | | Journal (issue) | | JOSEPSANCHEZ-LAFUENTE i MARIOL !FOSSILS andMINERALS i IMPORTERS and EXPORTERS Fco. Javier Aguado Goni , Tel./Fax: 34-943...Diamonds Carver GEMS and JEWELRY APPRAISALS GEMS for JEWELRY RARE GEMS (COLECTION and RESEARCH) ART with...with ORNAMENTAL STONES GIFTS for COMPANIES ROUGH and CUT MATERIAL: AMETRINE (BOLIVIA), LAPISLAZULI (AFGANISTAN)...MINERALS, FOSSILS, INSECTS for COLLECTORS, ORNAMENTS, and DIDACTIC PURPOSES. Wecreateunforgettable experiences...experiences ... -it's as simpleas that- Alfredo Petrov and Frank de Wit info mineraldreams.com ' C/. Comte |  | | Catalog/List | | (Floor, Telephone, HERITAGELive!ÂŽ, Internet, Fax, and Mail) Heritage Auctions Design District Showroom...⢠11:00 AM CT ⢠Lots 72001â72322 LOT SETTLEMENT AND PICK-UP Available immediately following the loor...(minimum $49), plus 20% of any amount between $300,000 and $3,000,000, plus 12.5% of any amount over $3,000...866-835-3243 Email: Bid@HA.com This Auction is cataloged and presented by Heritage Auctioneers & Galleries, Inc...trademark and service mark of Heritage Capital Corporation, registered in U.S. Patent and Trademark Ofice |  | | Book | | iimoriite-(Y) occurs at Trimouns as colorless, pink and pale brown, translucent to transparent, tabular microcrystals...microcrystals on matrix of white dolomite, and rarely as doubly terminated crystals to I cm floating...quartz veins in a variety of metamorphic, plutonic and pegmatitic environments. In the mid- l 970s, local...quartz on a ridge had once been mined for quartz, and large ilmenite masses could be seen on the old dumps...localities for good ilmenite crystals exist in the region (Brunet, I 977b ). NEW YORK Amity, Orange County |  | | Book (volume) | | SUBJECT HEADINGS Prepared by the Cataloging Policy and Support Office, Library Services 24TH EDITION VOLUME...Washington, D.C. 20540-4910 Preface The twenty-fourth and used edition of Library of Congress Subject in...Editorial Bowman, Bonnie Briscoe, Claudia Coleman, and Elizabeth Rinn edited headings in the data base....records in the MARC 21 subject erated authority and reference entries from the sulting MARC records...used authorities format. CDS sorted the entries, and formatted the data into page images. gen- The |  | | Book (edition) | | MINERALS . andtheir LOCALITIES JAN H. BERNARD AND JAROSLAV HYRSL 4,200 MINERALS 8,500 LOCALITIES 1,0'00...memory of Dr. John Sinkankas for his kind initiative and support to publish this book in English version.... 2004 by Granit. s.r.o. 2004 Text bv Jan H. Bernard and Jaroslav Hyrsl 2004 Photo; by JaroslaYHyrsl (463)...collections. The awors are gratefi,I ro all institwions and persons who allowed to photograph their specimens...Page 5: Opal - fire, polished, 50 mm, Mezezo, Ethiopia, G Page 12: Brazilianite, 35 mm, Linopolis, Brazil |  | | Book | | ⢠.. DAVID LAMBERT AND THE DIAGRAM GROUP . ' ⢠' \ \ ' BOSTON PUBLIC LIBRARY Copley Square...02116 ⢠.. ⢠... â˘, I .. David Lambert and The Diagram Group SÂŽ Facts On File, Inc. Encyclopedia...David Lainbert and the Diagram Group. p. Ctn. Includes bibliographical references and index. ISBN 0-8160-4547-X...0-8160-4547-X 1. Geology. 2. Paleontology. 3. Prehistoric peoples. I. Diagran1 Group. JI. Title. QE26.3 L36 2001...tl1at forged our planet, and to the vast array of prehistoric animals, plants, and other organisms that appeared |  | | Book (edition) | | Intentionally Left Blank Gems Their Sources, Descriptions and Identification Sixth Edition Edited by Michael OâDonoghue...site at http://elsevier.com/locate/permissions, and selecting Obtaining permission to use Elsevier material...responsibility is assumed by the publisher for any injury and/or damage to persons or property as a matter of products...particular, independent verification of diagnoses and drug dosages should be made Every effort has been...owners of copyright material. However, the editor and publisher would be glad to hear from any copyright |  | | Book (volume) | | Particle-Driven Subaqueous Gravity Processes M Felix and W McCaffrey, University of Leeds, Leeds, UK Ă 2005...of sediment. Gravity flow can take place in lakes and oceans, but some dense flows also occur in rivers...smaller magnitude. Due to their infrequent occurrence and destructive nature, much information about subaqueous...processes comes from the study of their deposits and from laboratory experiments. Flow initiation mechanisms...mechanisms, sediment transport mechanisms, and flow types are described here separately, to emphasise the |  | | Book | | foreign geological terms, necessary in his study and translations of scientific literature, noted, on...Considering such a dictionary to be very important and necessary, the author presented an appropriate project...House ââWydawnictwa Geologiczneâ, and thanks to the full understanding and appreciation started to realize...realize his conception. Both the English catchwords and their renderings come from various sources mainly...scientific periodicals and dictioÂŹ naries printed in English, Polish, Russian, French and German. The system |
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