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| Yellow Topaz from Saxony, Germany History of Emerald Mining at Habachtal, Part II New Regular Feature:...No. 1 EDITORIAL 1 Yellow Topaz from Germany, Emerald Mining in Austria’s Habachtal Region, A Return...behavior. 18 History of Emerald Mining in the Habachtal Deposit of Austria, Part II Karl Schmetzer The...two-part series on the mining history of Austrian emerald deposits in the Habachtal region. p. 40 REGULAR...nickel impurities • Nail-head spicule in a Russian emerald • Dyed fluorite • Repaired grandidierite • New |
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| in Adamello Massif, Central Southern Alps, Italy: An Investigation of Its Mineralogy, Crystallography...Marshall, Anthony E. Fallick and Yannick Branquet Emerald Deposits: A Review and Enhanced Classification Reprinted...and Allan Pring A Review of the Classification of Opal with Reference to Recent New Localities Reprinted...collaborative research projects worldwide. Ian Graham is also an Associate Editor of Mineralogical Magazine and the... is positioned between academia and industry. As an applied science, in gemology, the instruments used |
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| 2 / 2022 Spinel from Tajikistan Cleopatra’s Emerald Mines DaylightFluorescent Hyalite from Namibia...Lomthong and Theodore Rozet 156 Cleopatra’s Emerald Mines: The Marketing of a Myth By Jack M. Ogden...Ogden 114 Apatite from Slovakia | Afghan Emerald with Gota de Aceite Phenomenon | Zircon Inclusions in...Zimbabwe | Chromiumbearing Translucent Green Common Opal | Blue Sapphires Reportedly from Azad Kashmir |...Silica Glass Sold as RockCrystal Balls | An Unusual Pink Synthetic Opal | Quench-Fractured Bicoloured Synthetic |
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| Showcasing the Beauty of Science ENCHANTING EMERALD Royal Status of the Precious Green Gem MICROSCOPIC...Popularity 20 NEW MEXICO’S HARDING MINE The Must-See Pegmatite of the West Steve Voynick Mark Leatherman...Cover Primary: Specimen featuring four hexagonal emerald crystals, embedded in a dark shale and crystalline...received a shipment of High Grade Welo opal from Ethiopia-posting new opal parcels daily. Please call or order...im4jade@yahoo.com on what day you will be attending. See us on Facebook and Instagram Thanks and look forward |
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| London ABSTRACT: Blue euclase from Mwame, Hurungwe District, Zimbabwe, which was first collected in the late...Claims, 8 km south of Mikese Station, Morogoro District. The largest of these crystals measuring 72 x...the 1930s to collections in the USA (Pough, 1991; see also Dirlam et al., 1992; McKie, 1955). Mozambique...of euclase from Muiane pegmatite, Alto Ligonha District, was made by von Knorring et al. (1964). This...pegmatite was mined for microlite and tantalite and was an important source of gem beryl, producing both aquamarine |
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| NEW TECHNIQUES p. 90 :. <-- 106 An Update on the Ural Emerald Mines A. F. Laskovenl~ovand V . I. Zhernakov...of articles on all aspects of the field. Please see the Suggestions for Authors in the Spring 1995 issue...well-made-and potentially deceptive-synthetic emerald. One of the most fascinating developments, however...issue looks at heightened mining activity in the emerald-rich area near Malysheva, farther north in the...not true for diamonds, of course, because they had an important role in industry, as well as provided a |
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| review of deposits, a helpful geographical index, and an exceptionally complete listing of books and arucles...America has developed into a major exporter rather than an importer. A VAN NOSTRAND REINHOLD BOOK . Digitized...AMERICA In Iwo Volumes Volume | JOHN SINKANKAS [aN] VAN New NOSTRAND York Cincinnati REINHOLD Toronto...neat erie ra 8 ‘y - ml 3 ee pon * : c= : an vi 5 = fii? i a j — » ya y _— ’* : ...features of mineralogy and geology of the gemstone deposit is also furnished. In this connection, a tabular |
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| .......................................... 35 Emerald ........................................................................... 108 Chapter 13 Opal 109 Opal — gemstone properties .................................................................. 109 Opal terminology ........................................................................ 110 Precious opal in Western Australia ................................................................. 113 Common opal ............................................... |
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| your own tumbling and grinding machineto cutting an emerald !The extensive reference section describes over...mineral-collector and the experienced lapidary for whom itwill be an invaluable work of reference. FOKRieterehee 543...Left: Magnificent hexagonal crystals of chaiybite, an iron carbonate. The triangular 'growth shadows' that...are visible represent the form of the crystals at an earlier stage in th eir de veiopm en t This book...things, such as the wings of butterflies, can show an incomparable purity and brightness. In this connection |
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| Jensen and Ole V. Petersen Carving Gem-Quality Opal Theodore Grussing Two Notable Color-Change Garnets...S A PROFESSIONAL SALESPERSON A S AN INSTRUCTING EMPLOYER A S AN AUTHORITY IN YOUR COMMUNITY you increase...of inclusions in natural stones such a s ruby. emerald. and sapphire. selling points of gemstones and...how to separate natural from synthetic corundum, opal, alexandrite, a n d spinel, a s well as diamonds...Inclusion/Identification Slide Sets: Natural Emerald Synthetic Emerald Gemstones and Their Phenomena Natural |
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| 26 Discovery and Mining of the Argyle Diamond Deposit, Australia James E. Shigley, John Chapman, and...Synthetic apatite • Beryl-and-glass triplet imitating emerald • Diamond with hidden cloud • Diamond with pseudodichroism...“Rainbow” obsidian • New production of Indonesian opal • Australian prehnite • “Yosemite” topaz • Tourmaline...TGMS highlights • Vesuvianite from California • Opal imitations • Green flame-fusion synthetic sapphire...or back issues to the Subscriptions Department (see above), or visit www.gia.edu/gandg. To obtain a Japanese |
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| own tumbling and grinding machine to cutting an emerald! The extensive reference section describes over...a... “he experienced lapidary for whom it will be an invaluable work of reference. LIBRARY CHICAGO PUBLIC...eft: Magnificent hexagonal crystals of chalybite, an iron This book has several purposes: to introduce...are visible represent the form of the crystals at an earlier stage in their development fashioned gems;...things, such as the wings of butterflies, can show an incomparable purity and brightness. In this connection |
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| of articles on all aspects of the field. Please see the Author Guidelines at gia.edu/gemsgemology or...etching, in quartz crystals from India’s Jalgaon District. NOTES AND NEW TECHNIQUES 82 Characteristics...in bastnäsite • Flashes and flames in Ethiopian opal • Cat’s eye imitation pen pearls • Negative crystals...of Ethiopian emerald • Burmese gem report • Conversation with Gemfields • Ruby and emerald mining updates...• Cultured pearl market • Moroccan amethyst • Emerald dealing in Afghanistan • Montana sapphire production |
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| Martin Okrusch Hartwig E. Frimmel Mineralogy An Introduction to Minerals, Rocks, and Mineral Deposits...com/series/15201 Martin Okrusch Hartwig E. Frimmel Mineralogy An Introduction to Minerals, Rocks, and Mineral Deposits...comprehensiveness. Many subjects are dealt with to an extent that goes beyond what is typically expected...stage the idea was born to write the next edition for an English-speaking readership. This resulted on the...German examples in the text. This is admittedly an artefact from taking the German version of the textbook |
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| kyanite from Tanzania|Green daylight-fluorescent opal from Mexico|‘Trapiche’ quartz with radiating fibres|Yellow...amazonite|News from Myanmar Cover Photo: An 11.38 ct diamond with an asteriated hydrogen cloud is photographed...photographed under 250–350 nm broadband UV excitation. See article by Thomas Hainschwang, Franck Notari and...ARTICLES Feature Articles 306 The Rhodesian Star: An Exceptional Asteriated Diamond By Thomas Hainschwang...institutions may become Direct Subscribers to The Journal (see www.gem-a. com/publications/subscribe.aspx). Advertising |
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| (bottom), and (right)6.78 ct with a 3.49 ct yellow emerald-cut diamond. Courtesy o f Hans D. Krieger, Idar-Obatstein...of articles on all aspects of the field. Please see the Guidelines for Authors in the Summer 1996 issue...Gubelin Laboratory's Christopher Smith, involves an identification technique that may seem esoteric to...Tucson lectures on the magnetism test, I suspended an elastic band from the thread, and the band acted...they are dust-like. When such inclusions are large, an unset synthetic diamond may jump 6 mm or more off |
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| .......... 74 COLOMBIAN EMERALD ......................... 78 ZAMBIAN EMERALD ........................... 122 AUSTRALIAN BLACK OPAL ...................... 126 AUSTRALIAN WHITE OPAL ...................... 130...With Natural Colored Gemstones," MEXICAN FIRE OPAL .......................... 134 AMERICAN FRESHWATER...me on mounting mayhem in Colombia's lucrative emerald market. The troubling gist of these calls is always...bustling drug and gem trades for control of its emerald export business. According to this dealer and several |
