 | | Journal (issue) | | is considered today a national monument. This old city is very wellknown for its rich history since Brazil's...in Spain. 332 GEMMOLOGICAL ASSOCIATION OF ALL JAPAN In September the Association received a visit of...members from the Gemmological Association of All Japan, including the Chairman Mr. Wadachi Yamada and the...with a selection of gem materials occurring in Japan, together with a map of their location. Also presented...Dorset Arai, Morimitsu, Tokyo, Japan Arimura, Kazu, Kagoshima-Ken, Japan Barlow, Allan Edward, Leicester |  | | Journal (issue) | | and gem deposits of alexandrite, cat's-eye and chrysoberyl in Brazil' pp. 333-54) ISSN: 0022-1252 F.G...Abstract Abstract During a visit to Hanoi, the capital city of of Vietnam, the authors became aware of a freshwater...exist in in the the centre centre of of aa possible city with with aa population population of of three three...three million. million. However, However, as city ISSN: 0022-1252 0022-1252 ISSN: Genun., 1993, 23..., Fig. 2. 2. Section Section of of Hanoi Hanoi city map Fig. of the showing the location of Ho Tay pearl |  | | Journal (issue) | | X-ray Apparatus (Gemmological Association of All Japan). ISSN:0022-1252 XVII(5) 300 (1981) J.Gemm, 1981...Raman measurements and L. Kaplan & Sons, of New York City, for the loan of the diamonds used in this study...(F. H.). Chrysoberyl. Lapidary Journal, 34, 3, 792-5,1980. Cursory review of the chrysoberyl family with...November, 1980, Mr T. M. Osborne, of Birmingham City Council, gave a talk at the Society of Friends,...illustrated talk on garnets and olivines at Sheffield City Polytechnic. On 4th December, 1980, the Annual General |  | | Journal (issue) | | staurolite( .. . 3.74)+b g/re sapphire^ ,~.J..,.--. chrysoberyl(3,7l)±b_ alexandrite •pyrope(3,65-3,f, •grossular...0,140ai40 0,16001600,1800,180Q,2oo0£OC I chrysoberyl (3,7l)+b alexandrite drysoheryl ('J.71)+b a/exandrife...demantoid garnet), 8 (topaz and spinel), 8^ (chrysoberyl), 9 (corundum) and 10 (diamond) will provide...synthetic spinel On zircon and morganite On Chrysoberyl caVs-eye On tourmaline caVs-eye On pearl and...gem being tested. (i) O n diamond, corundum, chrysoberyl, topaz a n d spinel (H. 10, 9, 8^, 8) the small |  | | Journal (issue) | | Alexandrite Effect Schmelzer, Effect in Minerals: Chrysoberyl, Garnet, Corundum, Fluorite. N.Jb.Miner.Abh....(1980), The alexandrite effect in minerals: Chrysoberyl, Garnet, Schmetzer, Gübelin, effect Corundum...most important important are aquamarine, beryl, chrysoberyl, topaz, amethyst, tourmaline, emerald, and agate...seems to fill a missing link between spinel and chrysoberyl; because of its space grouping it was found to...first in The Journal of the Gemmological Society of Japan* this describes an imitation of opal rather than |  | | Journal (issue) | | in St Petersburg in 1833 and found it to be chrysoberyl, a beryllium aluminium oxide (Wörth 1842: Kokscharow...crystallographic description of alexandrite (i.e. chrysoberyl). Rose (1842) described in detail the mineral...mineral deposits in the Urals. In an emerald green chrysoberyl he found dichroism to be influenced by type of...red. Both Rose and Wörth concluded that the chrysoberyl was coloured by chromium oxide. Chemical analyses...Schmetzer et al. (1980) described the AE in chrysoberyl, garnet, corundum and fluorite. Bank and Henn |  | | Journal (issue) | | pink, inclining to purple; it comes from Honshu, Japan, where it occurs in metamorphic or metasomatic rocks...phenacite, chrysoberyl and euclase. Most of these remain of academic interest although chrysoberyl is currently...Bldg 2F, 30 -7 Taito-4-chome Taito-ku, Tokyo 110, Japan. The second colour grading device*4) was developed...YEH (C. L.). (Taiwan cat's-eye). J. Gemm. Soc. Japan, 5,4, 13-20, 3 figs, 1979. (In Japanese with English...coloured black and blue pearls). J. Gemm. Soc. Japan, 5,4, 3-8, 40 figs (31 in colour), 1979. (In Japanese |  | | Journal (issue) | | particularly synthetic rubies, are now made in U.S.A. and Japan. Among many American manufacturers Chatham is credited...a similar colour variety of sapphire is made in Japan by Kyocera International Inc., in Kyoto, and marketed...varieties of synthetic corundum made in America and Japan are extensively investigated and compared with the... 412 J.Gemm., 1985, XIX, 5 CHATOYANCY IN CHRYSOBERYL CAT'S-EYE FROM PEGMATITES OF TRIVANDRUM DISTRICT...Studies, Trivandrum 695010, India. ABSTRACT Chrysoberyl and its variety cat's-eye occur extensively in |  | | Journal (issue) | | to lie here. One imaginative writer described 'a city of golden palaces and streets paved with precious...in opal from Hosaka, Fukushima Prefecture, Japan.) J.Geol.Soc. Japan, 74, 274-9, 9 figs, 1979. (Japanese...carried out on corundums. An 18 pound crystal of chrysoberyl (not gem quality) and a fine 207 carat yellow...resembled synthetic opal structure. A red cat's-eye chrysoberyl is described as being dark red with no green...). Neue Chrysoberyll-Varietat entdeckt. (New chrysoberyl variety discovered.) Z.Dt.Gemmol.Ges., 29,3/4 |  | | Journal (issue) | | minerals show a tendency to form cyclic twins (e.g. chrysoberyl, cerussite) and thereby obtain a higher state...copper. City boundaries encompass 40 977 square kilometres, making it the world's largest city in area...superior colour discovered recently: RIs high. Pearl. Japan worried that China may process their own freshwater...[cultured] pearls which are at present processed in Japan. A fine pink topaz and peridot suite of jewellery...metamorphic belt, in the Hodono valley, Ehime Prefecture, Japan. Mineralog.J., 11, 2, 78-83, 3 figs, 1982 |  | | Journal (issue) | | a n d serpentine. An actinolite cat's-eye, a chrysoberyl cat's-eye which 30 looked like a doublet and...Yasmin, Nelson, New Zealand Kawahara, Makio, Fukuoka City, Japan Kilpatriek, Constance M. P., Aberdeen Klean...Walton, Cecil, Prescot Watanabe, Teruo, Tokyo, Japan Whitaker, Peter William, Huntingdon Win, Thein,...Neagle, Trevor George, Norton Niinobe, Hiroko, Kobe, Japan Nightingale, Stephen, Scarborough Oliver, Graham...Charlotte, N. Carolina, U.S.A. Kim, Yong Sung, Tokyo, Japan Klean, Christopher, London Ko, Maun g, Rangoon, |  | | Journal (issue) | | (BeO) ; corundum (AI2O3); periclase ( M g O ) ; chrysoberyl (BeO AI2O3); spinel ( M g O A 1 2 0 3 ) and taaffeite...und Alexandrit-Lagerstatten. T h e genesis of chrysoberyl and alexandrite occurrences. Zeitschr. d. Deutsch...geological conditions necessary for the formation of chrysoberyl. T h e chemical composition and crystal-morphological...constituents are oxygen, aluminium and beryllium. Chrysoberyl usually crystallizes out of pegmatic melts which...districts, often found together with tourmaline. Chrysoberyl is sometimes found in assimilation pegmatites |  | | Journal (issue) | | IVi on Mohs's scale, is less hard than either chrysoberyl with a hardness of 8 Vi, or topaz with a hardness...example, a demantoid garnet or an alexandrite chrysoberyl can fetch high prices, both being rarer findings...Space rental costs being what they are in the large City centres of the World, it is vital that every square...1979. Short descriptions are given of an opal from Japan in which the diffraction takes place from layers...Driebergen, Netherlands. 1979 Yokowo, Naoya, Tokyo, Japan. 1979 Yost, Dara E., San Diego, Ca, U.S.A. 1979 |  | | Journal (issue) | | or yellowish-green 'citrines' which look like chrysoberyl or some peridot are mentioned and there is some...fashionable minerals. Mineral Digest, 1973, 5, 24-32. Chrysoberyl, autunite and erythrite are reviewed and illustrated...G., Tuckahoe, N.Y., U.S.A. Kaku, Baikei, Kobe, Japan 241 QUALIFIED Allin, Frederick Garner, Port...Isabel, Valencia, Spain Matsumoto, Kikuo, Gunma-Ken, Japan Maymo Mas, Jaime, Barcelona, Spain Möller, Gerd...London Nowak, W., Bexley Ohhashi, Naoko, Tokyo, Japan O'Donnell, Ann, Leeds O'Rourke, Edward Thomas, Brisbane |  | | Journal (issue) | | XVIII, 1 13 Use of hornbill ivory spread to Japan during the Tokugawa Period; during which time the... including coloured varieties of beryl made in Japan, opal and cubic zirconia. (Author's abstract) M...unaccustomed misprints and some bad errors (chrysoberyl is referred to the wrong pages) could do with...Kensington. On 19th November, 1981, members visited the City Museum, Sheffield. The Keeper of Natural Sciences...CharleneG., Toronto, Canada. Ebata, Taiichiro, Toyama, Japan. Grimston, Lady Iona C , London. Hawker, Robin W |  | | Journal (issue) | | BeMg2Al6012. Taaffeite is located at the binary join chrysoberyl BeAl204-spinel MgAl204 at 75% of the spinel end...pure magnesium-aluminium end member within the chrysoberyl- spinel join. In summary, all the evidence indicates...experimental examinations of the binary system chrysoberyl BeA1204-spinel MgAl 2 0 4 , published by Kawakami...melt exist. At high temperatures, spinel and chrysoberyl form a solid solution series. This hightemperature...temperature. These phase relationships in the chrysoberyl-spinel system were investigated using the floating-zone |  | | Journal (issue) | | similar to that of object 2. Object 3 (Helsinki City Museum: 3145.139) (Figure 9) is a gold-mounted miniature...Zn with traces of Na and As. Object 4 (Helsinki City Museum: 3145.146) (Figure 11) is also a gold-mounted...thank Mrs Marja-Liisa Lehto at the Helsinki Helsinki City Museum and Mrs Ulla Godenhielm, of the firm of Oy... Akad. Akad. Nauk Nauk beryl and and chrysoberyl.) chrysoberyl.) Tr. Tr. Inst. Mineralogist, 52, 52,...nm) is tabulated for diamond, ruby, sapphire, chrysoberyl, alexandrite, spinel, citrine, amethyst, rose |  | | Journal (issue) | | non-nucleated cultured pearl, produced in Lake Biwa in Japan, came to the market in the late 1950s and at the...put back into the river unopened and still alive. Japan The whole and beaded cultured pearl which has held...secreted over its surface. The beautiful part of Japan south of Osaka known as Kashikojima, an area of...Rafts supporting nets with marine oysters, Ago Bay, Japan. Fig. 8. Poor quality cultured pearl with thin...being produced in Lake Biwa, the largest lake in Japan. By 1981, the spat were being reared in clean concrete |  | | Journal (article/letter/editorial) | | Investigations,9064, 22 p. Bhattacharya,P.K., Dasgupta,S., Fukuoka, M., and Roy, S. (1984) Geochemistry of braunite...Petrology, 22, 363-396. Dasgupta,S., Banerjee,H., and Fukuoka, M. (1985) Oxidation gradients in metamorphosed...Geology,36, 351-360. Dasgupta, S., Banerjee,H., Fukuoka, M., Bhattacharya,P.K., and Roy, S. (1990) Pet...BeAlSiOn(OH),benrandite, BeoSirOr(OFI):,and chrysoberyl,BeAlrOo.American Mineralogist, 71, 557-568. Hetherington...Majumdar, N., Banerjee,H., Bhattacharya,P.K., and Fukuoka, M. (1986) Petrology of manganesesilicate-carbonateoxide |  | | Journal (issue) | | street of history a n d character into a n ordinary City road full of office blocks. Looking back over the...over 30 carats, were bought in the Orient as chrysoberyl cat's-eyes for some thousands of dollars. O n...iodide, this one floated and so could not be chrysoberyl. T h e owner was shocked and asked for identification...a y be bought a n d sold by the ignorant as chrysoberyl, a n d even the fairly knowledgeable might think... M.O'D. Journal of the Gemmological Society of Japan. Vol.1, no. 1, Oct. 1974. Address: c/o Institute |  | | Journal (issue) | | X , 65 13-14. A research in the archives at the City of Adelaide have brought to light papers on J o...garnets, 84 synthetic greenockite, periclase and chrysoberyl. Changes in the characteristics of synthetic...of varieties, including corund u m , spinel, chrysoberyl, beryl, topaz, garnet, opal, turquoise, feldspar...Florida, U.S.A. Fujimoto, Seishichiro, Nagasaki-Ken., Japan Gardiner, Anthony C , Abadan, Iran 95 Phillips...Diana Janet, Hailsham, Sussex Saito, Noboro, Kyoto, Japan Schullin, Hans, Graz, Austria Shrubsall, Graham |  | | Journal (issue) | | Spectroscopy for Diamond Analysis Australian Chrysoberyl Serpentine from the Italian Alps 2016 Tucson...treated and synthetic diamonds. pg. 3 18 Chrysoberyl Recovered with Sapphires in the New England Placer...Terrence S. Coldham Examines a collection of chrysoberyl samples from these sapphire placer deposits to... A.J.A. (Bram) Janse Benjamin Rondeau Tokyo, Japan Perth, Australia Nantes, France Timothy Adams...photoluminescence (PL) spectroscopy, Australian chrysoberyl, Italian serpentine, Tajikistan’s variscite, |  | | Journal (issue) | | Ahmadjan Abduriyim, Tokyo Gem Science, Tokyo, Japan; Raquel Alonso-Perez, Harvard University, Cambridge...Hiroshi Kitawaki, Central Gem Laboratory, Tokyo, Japan; Michael S. Krzemnicki, Swiss Gemmological Institute...Williams, Stone Group Laboratories LLC, Jefferson City, Missouri, USA; J.C. (Hanco) Zwaan, National Museum...and sunset padparadscha sapphire, honey-colour chrysoberyl and Paraíba-colour tourmaline. Each includes...7 focuses on the history of pearl culturing in Japan and China in recognition of the 100-year anniversary |  | | Journal (issue) | | Ito, G.G.,F.G.A G.G., F.G.A.. Yasuhirolto, Osaka, Japan Chatoyancy adds beauty and rarity to a gemstone...fibrous structure (Figure 1). The stone resembles chrysoberyl cat's-eye of of good quality, so chatoyant sillimanite...sillimanite now has to be considered as a chrysoberyl identified as sillimanite simulant. The stone was...Kornerupine Titanite Sinhalite Topaz Spinel Hessonite Chrysoberyl Pyropel Almandine/S pessartine Rutile Pyrolusite...apatite, axinite, beryl, varieties of quartz, chrysoberyl, datolite, diopside, epidote, euclase, garnets |  | | Journal (issue) | | photomicrograph in colour, bibl., 1984. Dark brown chrysoberyl from Sri Lanka was found to show extremely high...M. BROWN (G.). KELLY (S. M. B.). Alexandrite-chrysoberyl from Zimbabwe. Aust. Gemmol., 15,8,275-8,6 figs...CASSEDANNE (J.). Le chrysobéryl au Brésil. (Chrysoberyl in Brazil.) Revue de Gemmologie, 80, 7-13,11...colour), 1984. Details of 23 occurrences of chrysoberyl in Brazil are given and constants of the stones...brief reports from East Rand (platinum); Ghana; Japan; Knob Hill, Washington; Val d'Or, Quebec; Philippines |
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