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| Blanche of Lancaster Black Spinel from Thailand Camera-Drone Gem Exploration Volume 37 / No. 1 / 2020...Report 2019 | Gold Demand Trends 2019 | ID of Green Gems with Portable Instruments | The Journal’s Cumulative...| Maine (USA) Mineral & Gem Museum Gem Notes Hessonite from Kunar Province, Afghanistan | Olshanskyite...26–64 of this issue describes its history and the gems it contains, which consist of blue and pink sapphires...and Gem Materials By Karl Schmetzer and H. Albert Gilg Black Spinel—A Gem Material from Bo Phloi, Thailand |
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| of the Garnet Family W m . Revel1 Phillips and Anatoly S. Talantsev Opal from Shewa Province, Ethiopia...and John I. Koivula REGULAR FEATURES Gem Trade Lab Notes Gem News Thank you, Donors Book Reviews Gemological...Guidelines for Authors ABOUT THE COVER: Perhaps no gem material in modern times carries the mystique of...Communist Russia, however, demantoids-like other gems-fell out of favor. With virtually no mining for...Pelt-Photographers, Los Angeles, CA. Color separations for Gems & Gemology are by Effective Graphics, Compton, CA |
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| .......................................... 50 Thailand ................................................Enterprises, Thailand; Facets Show, Sri Lanka; Thai Gems and Jewelry Traders Association, Thailand; Hong Kong...Pandit, Tanzania Janet Ann Russell, Thailand Surasit Sriorathaikul, Thailand Edward Boehm, USA InColor is published...the amazing array of gems and gem people. Even for an experienced gemologist or gem dealer nowadays it...ICA Ambassadors, miners and members active in the gem trade all around the world, for working hard in gathering |
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| Robert M. Shipley, Jr. The Chanthaburi-Trat Gem Field, Thailand Peter C. Keller 197 Gemstones with Alexandrite...Alexandrite Effect E. Giibelin and K. Schmetzer 204 Gem-Quality Grossular Garnets D. Vincent Manson and Carol...Crystal: The Van Pelt Collection John Sinkankcis 221 Gem-Quality Friedelite from the Kalahari Manganese Field...REGULAR FEATURES Gem Trade Lab Notes Editorial Forum Gemological Abstracts Book Reviews Gem News Index to...Erica Van Pelt, Los Angeles, CA. Composition for Gems & Gemology is by Printed Page Graphics, Fullerton |
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| GEMS & GEMOLOGY VOLUME XLV WINTER 2009 WINTER 2009 PAGES 235– 312 VOLUME 45 NO. 4 Ruby-Sapphire Review...gemstone evaluation. From convenient locations in major gem centers, to frontline detection of emerging treatments...expert service, but also advance the public trust in gems and jewelry worldwide. GIA’s Retailer Support Kit...Uranium mineral as inclusions in turquoise 296 Gem News International Update on benitoite • Large cat’s-eye... Collins London, UK DATABASE COVERAGE Editor, Gem News International Brendan M. Laurs Shigeru Akamatsu |
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| I VOLUMEXXVII W w FALL 1991 1 GEMS&GEMOLOGY F FALL 1991 Volume 27 No. 3 1 T A B L New Sources...TECHNIQUES Bohemian Garnet -Today Jochen Schliiter and Wolfgang Weitschat Gem Trade Lab Notes Gem News "Perfect"...Gemstone S.A., Chiasso, Switzerland. Photo of the loose gems 0 Harold a ) Erica Van Pelt - Photographers, Los...o f R. Esnienan, Inc., New York. Typesetting for Gems & Gemology is b y Scientific Composition, Los Angeles...CA 90404 Telephone: (800) 421 -7250 x251 Editor, Gem Trade Lab Notes C. W Fryer Editor, Gemological Abstracts |
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| ri GEMS&GEMOL VOLUME XXXil 0 F C O N T E N T S EDITORIAL In Honor of Robert C. Kammerling William...Gemological Challenges in Identifying Black Opaque Gem Materials Mary L. Johnson, Sl~aneF. McClure, and...Schmidt REGULAR FEATURES DO. 264 pg. 257 Gem Trade Lab Notes Gem News The Robert C. Kammerling Research...Pelt-Photographers, Los Angeles, CA, Color separations for Gems & Gemology are by Effective Graphics, Compton, CA...Fax: (310) 453-4478 Editor, Gem Trade Lab Notes C. W. Fryer Editors, Gem News Mary L. Johnson John I |
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| Mineralogy and Geochemistry of Gems Edited by Panagiotis Voudouris, Stefanos Karampelas, Vasilios Melfos... Mineralogy and Geochemistry of Gems Mineralogy and Geochemistry of Gems Special Issue Editors Panagiotis...https://www.mdpi.com/journal/minerals/special issues/Gems). For citation purposes, cite each article independently... ix Preface to ”Mineralogy and Geochemistry of Gems” . . . . . . . . . . . . . . . . . . . . . . . ...for Special Issue “Mineralogy and Geochemistry of Gems” Reprinted from: Minerals 2019, 9, 778, doi:10.3390/min9120778 |
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| Australia: Canadian Gemmological Association: Rhodesian Gem and Mineral Society. THE JOURNAL OF GEMMOLOGY AND...specimens—N. Barnes (Pacific Pearls), H. Mendis (Mendis Gems), R. O'Neil; for radiographic services—L. Street;...Webster, R. (1976) Gems, 3rd edn, pp.753-73, Butterworths, London. Anderson, B. W. (1971) Gem Testing, 8th...Butterworths, London. Liddicoat, R. F. (1912) Handbook of Gem Identification, 9th edn, G.I.A., Los Angeles. Smith...Tanganyika. Min. Mag., 30, 458-66. Hurlbut, C. S. (1969) Gem zoisite from Tanzania. Am. Mineral., 54, 702-9. Schmetzer |
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| 13–20 June 2015 Gem-A is hosting the trip of a lifetime to Idar-Oberstein: the home of gem carving. Visits...Steinkaulenberg, Kupferbergwerk in Fischbach, DGemG, Schneider gem tools, Deutsches Mineralienmuseum, Historische Weiherschleife...information or to secure your place, contact events@gem-a.com. Join us. The Gemmological Association of...395 381 What’s New GL Gem Spectrometer| Photography accessory clips| Presidium Gem Indicator| Newsletters...Newsletters from the Gem Testing Laboratory, GGTL and ICGL|GIT Lab updates| Gold demand trends|Handbook of Gemmology |
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| GEMS & GEMOLOGY SUMMER 2009 VOLUME XLV Celebrating 75 Years of G&G The Diamond Type System SUMMER...gemstone evaluation. From convenient locations in major gem centers. sales associates educate the public about...expert service, but also advance the public trust in gems and jewelry worldwide. Take full advantage of all...Volume 45, No. 2 ® EDITORIAL _________________ 79 Gems & Gemology: The First 75 Years Alice S. Keller ...ARTICLES __________________ 80 Celebrating 75 Years of Gems & Gemology Stuart Overlin and Dona M. Dirlam Reviews |
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| GEMS & GEMOLOGY VOLUME XLVII SUMMER 2011 G I A S Y M P O S I U M SUMMER 2011 2 0 1 1 PAGES 79 –180...VOLUME 47 Advancing the Science and Business of Gems NO. 2 PROCEEDINGS OF THE FIFTH INTERNATIONAL GEMOLOGICAL...Guild Laboratories Inc., Los Angeles Gagan Choudhary Gem Testing Laboratory, Jaipur, India Jim Clanin JC Mining...Robert Kane Fine Gems International, Helena, Montana Dr. Stefanos Karampelas Gübelin Gem Lab, Lucerne, Switzerland...Switzerland Dr. Lore Kiefert Gübelin Gem Lab, Lucerne, Switzerland John King GIA, New York Dr. Simon |
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| Cover Picture: A pair of ancient cameo carvings in garnet. The Hellenistic pyrope-almandine carving on the...of the earliest dated extant cameo carvings in gem garnet. On the right is a pyrope cameo of the head of...3334 E: information@gem-a.com W: www.gem-a.com ©2004 Gemmological Association and Gem Testing Laboratory...7404 3334 F: +44 (0)20 7404 8843 E: information@gem-a.com W: www.gem-a.com Registered Charity No. 1109555...which we will endeavour to continue. On behalf of Gem-A, I would like to thank Roger for his many years |
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| region encompasses ·what may be the world's richest gem deposits, and is explored in depth in this pioneering...gemstones. Nearly all known species of important gems are found in this vicinity, frequently in abundant...Yeryfine, rare, pink diamonds. Emerald, alexandrite, garnet, and tourmaline are all significantly present....importance to the gem world. East Africa is home to two of the world's ~ewest gems: blue tanzanite and...finds, and is fueling interest. Rare and unusual garnet and chrome tourmaline are widely identified with |
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| U.S. $11.95 NATURE MINERALS AND GEMS FROM THE AMERICAN MUSEUM OF NATURAL HISTORY BY GEORGE E. HARLOW...the world's fabulous collections of minerals and gems resides at the American Museum of Natural History...This book is also a concise guide to minerals and gems, explaining what they are, how they develop, the...silicates. 314 full-color illustrations MINERALS AND GEMS FROM THE AMERICAN MUSEUM OF NATURAL HISTORY MINERALS...Scepter crystal 4 cm ( l % in.) across. Right: Faceted gems, including topaz, amethyst, aquamarine, morgan ite |
 | | Catalog/List |
| YORK The RAINBOW OF AFRICA GEM & MINERAL COLLECTION Front Cover: Gems from the Rainbow of Africa Collection...Auction #5236 The Rainbow of Africa Collection Gems & Minerals October 15, 2015 | New York Signature®...Signature® Internet Session 2 Heritage Auctions Design District Annex 1518 Slocum Street • Dallas, TX 75207 (HERITAGELive...searching out the best gems and minerals the times had to offer. There are gems and minerals in this auction...generations were just as precious as the minerals and gems documented in this catalog. As the greetings above |
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| Gemmological Association of Great Britain Save the date Gem-A Conference Saturday 5 and Sunday 6 November 2016...inclusion search engine|Gems from the French Crown Jewels exhibit 6 p. 64 ARTICLES Gem Notes Apatite from...Madagascar|Emerald and pyrite mixture from Colombia|Garnet from Mahenge, Tanzania|Grandidierite from Madagascar|Lalique...48–8.89 ct). Courtesy of The Edward Arthur Metzger Gem Collection at the Heasley Museum, Cornell University...Inclusions in Cat’s-eye, Star and Other Chrysoberyls 75 Gem-A Notices 78 Learning Opportunities 82 New Media |
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| sgoyal@libertygems.com 925 Sterling, Inc. Singhal Gems D-50 ,Subhash Marg, C-Scheme, Jaipur -302001 INDIA...– A New Source of Gem 22 Demantoid Garnet 25 Leopard Opal – From the Lost Mines of the Aztecs? ...Switzerland Hosts European Gemmological Symposium 32 Gem Labs 40 An exclusive interview with AGL’s Christopher...the French Gem and Mineral Show 49 Gem News 46 www.gemstone.org Cover: Foreground gems photos courtesy...Lanka Rajiv Jain, India Phuket Khunaprapakorn, Thailand Kamal Kothari, India Bryan E. Pavlik, Austria |
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| Gary W. Bowersox A Proposed New Classification for Gem-Quality Garnets Carol M. Stockton and D. Vincent... Hanson REGULAR FEATURES Gem Trade Lab Notes Gemological Abstracts Gem News Book Reviews Annual Index...f a five-year s t u d y of the various types o f gem-quality garnets, andproposes a n e w classification...-Photographers, Los Angeles, C A . Typesetting for Gems & Gemology i s b y Scientific Composition, Los Angeles...Subscriptions Manager. MANUSCRIPT SUBMISSIONS Gems &> Gemology welcomes the submission of articles |
 | | Book (edition) |
| GEMSTONES of the \NOrld BY WALTER SCHUMANN 1. What gem should be stored in moist absorbent cotton in order...What is the "gold of the North," the earliest used gem material of all? 7. What gemstone in antiquity was...believed to still the blood and soften anger? 8. What gem has an average life expectancy of between 100 and...you know the answers to these questions, you're a gem expert! (If you don't, see the back flap for answers...Terminology 10 The nomenclature of gems 14 ll FORMATION AND STRUCTURE OF GEMS Crystal systems and shapes Table |
 | | Book |
| 130 Eduard Giibelin oye The beauty of ornamental gems Eduard Giibelin 134 Agate: fire and flames The...treasures Portraits of the gemstones 180 Noble gems for the word of god Eduard Giibelin 188 Votive...magic, and medicine The beauty of the phenomenon gems Diamond: king of gemstones Corundum: the colorful...Sugilite: budding mallow spur 174 The beauty of color gems 114 Rhodochrosite and rhodonite power Polishing...Polishing agate 112 Portraits of ornamental gems 222. A passion for collecting Eduard Giibelin 226 Natural |
 | | Book (edition) |
| Taylor, Correspondence Course Diamond HANDBOOK OF GEM IDENTIFICATION 10th Edition Richard T. Liddicoat...Correspondence Course Supervisor DICTIONARY OF GEMS AND GEMOLOGY including Ornamental, Decorative and...may be encountered in English literature or in the gem, jewelry or art trades. BY ROBERT M. SHIPLEY ...Founder, Gemological Institute of America and American Gem Society ASSISTED BY The late ANNA McCONNELL BECKLEY... TNSB2@ .SS 1974 Morrill, Robert Shipley, 1887of gems and Dictionary ding inclu ogy, gemol and ative decor |
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| The Gemmological Association of Great Britain Gem-A Conference 2014 ...Book now to reserve your place...NOVEMBER Business Design Centre, Islington, London Gem-A will bring together a range of globally-renowned...discuss a variety of important issues within the gem and jewellery trade, from both a scientific and trade...invest in your people? MONDAY 3 NOVEMBER Seminars Gem-A Headquarters, 21 Ely Place, London EC1N 6TD Guest...Collections Global ethical challenges within the industry Gem-A Headquarters Seminar with Greg Valerio and Vivien |
 | | Report (issue) |
| issued in the form of Professional Papers as will bo seen below : meanwhile tho Annual Report and Review...part of the Records. Instructions for binding will bo given on special slips. Volume LXXV.—Professional...—The Mineral Resources of the North-West Frontier Province. By A. L. Coulson. (Prioe As. 14 or la. 3d.) No...(Price As. 7 or 81.) No. 13.—A Note on the Bawdwin Mines, Burma. By E. L. G. Clegg. (Price As. 8 or 9d.)...paper, “ Notes on Indian Precious Stones ”. Notes on Gem Stones have also been included in the Quinquennial |
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| January 1996 The Gemmological Association and Gem Testing Laboratory of Great Britain President E...B.5c., FGA DGA The Gemmological Association and Gem Testing Laboratory of Great Britain 27 Greville Street...and of minerals associated with the rubies in the gem gravels, are considered in modelling how the particular...Journal of the great potential of Russia for supply of gem materials, and amber possibly having come from this...this source is described in Notes from the Gem and Pearl Testing Laboratory, Bahrain. The composition |
