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| No. 8 647 Editorial p. 719 Columns 648 Whatâs New Gemlogis Taupe Diamond Segregator|M-Screen melee...Articles 678 From Exsolution to âGold Sheenâ: A New Variety of Corundum By Thanh Nhan Bui, Katerina Deliousi...Yong Zhu, Tianyang Zhang, Xuan Wang, Jian Zhang, Hong Ma and Zhonghua Song 712 Conferences Canadian Gemmological...Note on pp. 656â658. Photo by Jeff White. 721 Gem-A Notices 735 Learning Opportunities 738 New Media...GemeWizard Ltd., Ramat Gan, Israel; Guanghai Shi, China University of Geosciences, Beijing; James E. Shigley |
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| (Horgen), Prof A T Collins (London), J Finlayson (Stoke on Trent), Dr J W Harris (Glasgow), Prof R A Howie (Derbyshire)...gemmologist, and after he retired from dealing in gems on a daily basis, he never lost interest and continued...making steel for the Japanese war effort, surviving on the poorest of diets for some three and a half years...of the Gemmological Association. In 1950 he took on the task of running the first year correspondence...would then give them a copy of his own observations on the same materials, so they could see just what they |
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| HONG KONG MINERALS Wolframit e PRODUCED THE URBAN COUNCIL BY & URBAN SERVICES DEPARTMENT HONG KONG...KONG KWANGTUNG Dee PROVINCE Ba y p ' 俥ă 2O. Wes t Bro t her t,T T, 4 KOWLOOI `. ⢠iďź .8oyĺ`...8oyĺ` no. ăďźžďź Source: Based on t he Geolo gic.ii Ma p o.f Hong Kon g by P.A JJen and e:s1e phe ris (1971)...塨 Kit O Formati on. Red breccia beds LOWER CRETACEOUS - Por t Island Forma ti on. Red beds MIDDLE AND...AND LOWER J URASSIC 亥 RepuIse.Ba y Forma ti on. Ac id voIcan ic rocks w it h¡ sed iment ar y i nter |
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| Volume 35 / No. 8 / 2017 COLUMNS p. 702 687 Whatâs New D-Scope+ microscope|EXA spectrometer|GIA iD100 gem...newsletter|Santa Fe Symposium proceedings|Fei cui testing in Hong Kong 691 Gem Notes Baryte from South Dakota, USA|...coloured stones, as described in the article by A. Reys on pp. 708â726 of this issue. Shown here are several...772 Gem-A Notices 786 Learning Opportunities 790 New Media 794 Literature of Interest The Journal is...Gemewizard Ltd., Ramat Gan, Israel; Guanghai Shi, China University of Geosciences, Beijing; James E. Shigley |
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| 21â22 November 2015 The Gem-A Conference will be held on 21â22 November 2015, at the Royal Institute of British.../ Volume 34 / No. 6 Columns p. 476 467 Whatâs New Automated melee screening device|DFI Mid-UV Laser+...diamond screening system|DiaCam360| GemmoSphere|News on cobalt diffusion treatment of spinel, diamond-diamond...Newsletter|Microcrystalline silica online lectures|Whatâs New in the Mineral World? 470 Practical Gemmology A...opals, with a catch 472 Gem Notes Chrysocolla chalcedony from Spain|Rhodochrosite from Brazil|Tourmaline |
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| excellence in the trade. Sign up now and receive our NEW fully illustrated Diamond Diploma course notes â...include the most current information and research on diamonds, as well as everything you need to get you...Volume 34 / No. 4 COLUMNS p. 35 279 Whatâs New GemmoFtir|GSJ abstracts| Historical facet designs|ICGL...melee|Glass imitation of malachite|Dyed quartzite and chalcedony beads imitating amazonite|News from Myanmar ...Thomas Hainschwang, Franck Notari and Erik Vadaszi on pages 306â315. Photo by T. Hainschwang. ARTICLES |
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| Volume 35 / No. 4 / 2016 COLUMNS p. 321 271 Whatâs New DiaPix Jewelry Imaging|DiaTrue screening system|GemTrue...and special reports|GIT Lab Updates|USA lifts ban on Burmese ruby and jadeite|Margaritologia newsletter|David...Anomalous behaviour of a Sumitomo synthetic diamond on the reflectance meter 276 Gem Notes Antigorite serpentine...349 Gem-A Notices 364 Learning Opportunities 367 New Media 370 Literature of Interest The Journal is...GemeWizard Ltd., Ramat Gan, Israel; Guanghai Shi, China University of Geosciences, Beijing; James E. Shigley |
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| Prof. A. T. Collins (London), J. Finlayson (Stoke on Trent), Dr J. W. Harris (Glasgow), Prof. R. A. Howie...glad to consider original articles shedding new light on subjects of gemmological interest for publication...typescripts for publication in The Journal is given on our website, or contact the Production Editor at...However, with the increasing number of new sources of gem-quality stones on the international market such as...especially in connection with the description of new sources of ruby and sapphire and with the description |
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| Greatwood, FGA, G.M. Howe, FGA, DGA, S. H u e Williams MA, FGA, DGA, Li Li Ping, FGA, DGA, B. Jackson, FGA...How has it been called into being? For me nature on earth, under water and in space, offers the richest...expressiveness of a jewellery piece, stimulated a new interpretation of nature through jewellery. "Evolution...foreseen. The attraction to create new forms of expression, and also new possible forms of living, was more...was not to have a motionless new piece of jewellery but to compose a new living being with the facilities |
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| Prof. A.T. Collins (London), J. Finlayson (Stoke on Trent), Dr J.W. Harris (Glasgow), Prof. R.A. Howie...glad to consider original articles shedding new light on subjects of gemmological interest for publication...typescripts for publication in The Journal is given on our website, or contact the Production Editor at...studies of nephrites within several âfieldsâ in New Zealand, which fall within distinct geological terranes...nephrite in other localities around the Pacific Rim, in New Caledonia, Australia, Taiwan, Russia and Canada. |
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| / Volume 34 / No. 2 COLUMNS p. 105 91 Whatâs New p. 109 GIA DiamondCheck | HRD Alpha Diamond Analyzer...spessartine inclusion | Tourmaline from the Cruzeiro Mine, Brazil | Natural diamond showing a âsyntheticâ...more on historic diamond cutting styles in Portugal, see the article by R. Galopim de Carvalho on pp....162 Gem-A Notices 170 Learning Opportunities 174 New Media 182 Literature of Interest i Gemmology...GemeWizard Ltd., Ramat Gan, Israel; Guanghai Shi, China University of Geosciences, Beijing; James E. Shigley |
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| 187 PeĂąas Blancas: An historic Colombian emerald mine R. Ringsrud and E. Boehm 251 Book review 254...garnet. The Hellenistic pyrope-almandine carving on the left (19.1Ă12.9 mm), probably Queen ArsinoĂŤ II...earliest dated extant cameo carvings in gem garnet. On the right is a pyrope cameo of the head of Eros encircled...(Beijing), Dr J.E. Shigley (Carlsbad), C.P. Smith (New York), E. Stern (London), E. Strack (Hamburg), Tay...glad to consider original articles shedding new light on subjects of gemmological interest for publication |
 | | Journal (issue) |
| Prof. A. T. Collins (London), J. Finlayson (Stoke on Trent), Dr J. W. Harris (Glasgow), Prof. R. A. Howie...glad to consider original articles shedding new light on subjects of gemmological interest for publication...typescripts for publication in The Journal is given on our website, or contact the Production Editor at...but well-described occurrence along Clear Creek, New Idria serpentinite, in San Benito County, California...Vizcaino peninsula is a mountainous region located on the western side of Baja California. The peninsula |
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| cut down mounted ⢠specimens. Fine screw adjustment on holder fitted to grinding ⢠secnon. Model Min 200...release at fracnon of cost. New and unused. With leather case. ~~~- ANY ITEM ON 14 DAYS APPROVAL by Taylor... Contents PAGE ARTICLES The Geology of the Toco District, Trinidad, West Indies. Part 2: P¡etrology, Metamorphism...Northern Rhodesia ⢠Nyasaland ⢠⢠⢠British Territories in Borneo British Guiana ⢠⢠Fiji ⢠⢠⢠⢠â˘...Lebedev and V. E. Khain . . . . SELECT BIBLIOGRAPHY ON GEOLOGY AND THE MINERAL INDUSTRY, No. 33 GEOLOGICAL |
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| 3083, Australia ELSEVIER Amsterdam - Oxford - New York â Tokyo 1987 ELSEVIER SCIENCE PUBLISHERS B...SCIENCE PUBLISHING COMPANY INC. 52, Vanderbilt Avenue New York, NY 10017, U.S.A. Library of Congress Cata...Granite. 3. Rocks, Metamorphic. 4. Tungsten ores. 5. Tin ores. 6. Hydrothermal deposits. I. Title. II. Series...study of skarn deposits having anomalously high tin or tungsten contents, or both. With the present greater...geologist. Consequently, in contrast to many books on economic geology, both economic W- Sn skarns and |
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| Skinner, editor, Economic Geology, 91-A Yale Station, New Haven, CT 06520 Contents Dedication to W. S. White...does an individual who has such a great influÂŹ ence on his profession maintain such a low profile as âWhitieâ...the last 25 years. Whitie is a longtime fixture of New England and Lake Superior geology, but we will not...shall consider the signal service he has performed on behalf of the profession through his parÂŹ ticipation...through a series of critical maneuvers including: new editorial procedures; a confrontation with its longÂŹ |
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| fully with color photographs and diagrams. part, on the earth, describes the formais illustrated The...huge forces which have shaped surface, then goes on to discuss techniques of dating rocks by their radioactivity...plant and animal The second life part, in each. on minerals, explains in simple terms the crystal... collector can use to identify his specimens. on rocks, shows how the main have been formed and how...of rock rock specimens. The how final section, on collecting, tells the reader what to collect, what |
