 | | Journal (issue) | | 664 J.Gemm.,l985,XlX,8 THE KATLANG PINK TOPAZ MINE, NORTH WEST FRONTIER PROVINCE, PAKISTAN. By WILLIAM...Gh ari Ru ins. The hillock containing the Katlang Mine can be seen at the indicated point near the edge...hari Ruins. The hillock cont aining the Katlang Mine can be seen at the indicated point near the edge...geologist Syed Iftikhar Hussein, production at the mine has been steadily increasing since the Gem C P started...of other specimens reported to have come from the mine, are as follows: RI 1.630 1.632 1.640 Birefringence |  | | Report (issue) | | mineral col lector, was born in Kanazawa, Ishikawa Prefecture, on August 30, 1874. Soon after his graduation...at the Arakawa Mine, Akita Prefecture. In 1909, he was promoted to Director of the Mine and held. the...then that of the Director of the Yoshioka Mine, Okayama Prefecture, for about seven years altogether. He...technology in the first half of this century in Japan. He retired from the Advisory Board of the Mitsu...such volumes as " BeitrƤge zur Mineralogie von. Japan ", Neue Folge I and II (T. Ito, 1937), " Japanese |  | | Report (issue) | | IGNEOUS ACTIVITY AND RELATED METAMORPHISM IN CENTRAL JAPAN āFROM NAGOYA TO TOYAMA- & ā Ā« e r / * \ ... QE 461 . C47 1977 Geological Survey of Japan 1977 Digitized by the Internet Archive in 2019 with...Igneous Activity and Related Metamorphism in Central Japan āFrom Nagoya to Toyamaā By Naotoshi Ycimada Tamotsu...Yamada Geological Survey of Japan Isamu Kobayashi, Director Kawasaki-shi, Japan 1977 Q'H _ Of Ā© 1977...1977 Geological Survey of Japan 135 Hisamoto, Takatsu-ku, Kawasaki-shi, 213 Japan Sumitomo Printing & Publishing |  | | Journal (issue) | | Weighing 43 ounces avdps. ā¢ ā¢.ā¢ā¢ā¢ā¢ā¢ā¢.ā¢ā¢ā¢ā¢ā¢ā¢ā¢ā¢ā¢ā¢ $40.00 Opal, Queensland. In ironstone. 3 x 1 Ā½ . Good fi re............................. 111 NICKEL MINES OF JAPAN ..................................................respectively). Moss Opal From Yuma Co., Colo. What is believed to be a new locality for moss opal is an area 20...Colorado, and there is quite a sprinkling of the opal. A small sample was sent to the Editor of Rocks...mountain, but are found at the old Sedalia copper mine located only a few miles north of Salida ( 2) . |  | | Journal (issue) | | āChocolate Pearlsā. . . Leopard Opal . . . Rainbow Andradite from Japan THE QUARTERLY JOURNAL OF THE GEMOLOGICAL...identifying these products. 236 Leopard Opal: Play-of-Color Opal in Vesicular Basalt from ZimapĆ”n, Hidalgo...Nara, Japan Thomas Hainschwang and Franck Notari Characterizes this iridescent garnet from Japan and explains...Myanmar ā¢ Moonstone from Madagascar ā¢ Phenomenal fire opal ā¢ āSunsetā quartz from Brazil ā¢ Swedish Blue (slag)...EDITORIAL REVIEW BOARD Shigeru Akamatsu Tokyo, Japan Alan Jobbins Caterham, United Kingdom George Rossman |  | | Book (edition) | | source ofgood advice); this book is as much yours as mine. 000001030626 TINT CONTENTS Contents Foreword...Amethyst 72 Apatite Aquamarine 5) 80 Ć© 86 Black Opal 92 Blue Sapphire 102 Chalcedony 112 Cultured...mesmerised by a small water-filled container full of Opal tailings, given to me by an aunt. My professional...through a translucent gemstone. Good examples are Fire Opal and Rose Quartz. Ā¢ Transparent gems allow transmitted...to how they react with light. Some gems, such as Opal, get their colours physically as light is refracted |  | | Journal (article/letter/editorial) | | (Roberts, Rapp, Weber) 344 : review of Gens and Mine?aLs in CoLo? (Metz) 345 : review of Harzdbook of...Contz"Lbutions _: to CLay Mineralogy (Tokyo University of Japan) 948 -GLay: review of Mineralu flaste M'Lnerale)...TETSUYA with S. Naka, K. Suwa: Penetration twins in synthetic coesite 726 with Naka, Suwa: Solid _, solubility...MTJMME, Crystal stllrcture of kru?kaite from the Juno Mine at Tennant Creek, Northern TerritorY, 3oo Australia...598,785 NiMgOa 292 Onphacite crystal structure 634 Opal crystal linity, microstTucture 749 electron diffraction |  | | Book (volume) | | GEMSTONES QUALITY /\ND VALUE VOLUME2 By Yasukazu Suwa RICHARDT. LIDDICOAT COLLECTION GEMSTONES QUALITY...Yarnkazu Suwa, 2-2, 3-Chome, Kyobashi, Chuo-ku, Tokyo 104-0031, Japan. Manufactured in Japan GEMSTONES... BI-COLORTOURMALINE(Untreated) 38 82 MEXICAN OPAL (Untreated) BLUEZIRCON(Heated) 42 86 RUBY.NATURALCOLOR...go:nslooc-'sbenuty will lower its quality :rnd diniiuish its mine. Tbc b:ise of n c:it's eye commonly has :1 rough...cirrinc is a gem.stonethat has helped sustain the city of Ida.r. 'l11cmm1ecitrine is dcri\'(:d from tl1e |  | | Journal (article/letter/editorial) | | normative calculation technique for determining opal in deep-sea sediments C. L. SMITH,J. R. DE LAETERand...oozes-I. Chemrcal controls on the rate 1041 of opal-A to opal-CT transformation-an experimental study B....formation waters at the Seikan Undersea funnel, Japan. Chemical and isotopic documentation and its interpretation...Appalachian belt acetate ion, effect on orthopyroxene acid mine drainage, Susquehanna River acidic springs, sulfur...deep-sea sediment, C/N ratio. deep-sea sediment. opal. . deformation. MARID suite . : : : : degassing |  | | Journal (issue) | | pink and violet varieties have been produced in Japan by Adachi New Industrial Ltd. of Osaka (Chikayama...entered the trade. Although it is well known that in Japan and particularly in Russia various other synthetic...UVS UVL (long wave) (short wave) colour ANICS (Japan) reddish violet pale blue 'wa termelon' 1.563 ...obtained on a number of synthetic beryls produced in Japan and Australia. The recent red beryls show strong...and Miyata, T., 1987. Synthetic gemstones from Japan. Transactions of the XXI International Gemmological |  | | Journal (issue) | | become known as 'Geuda stone' (possibly the name of a mine). It was rumoured that back in Bangkok this material...one time such stones were said to be from a new mine. The old purplish to brownish typical Thai ruby...zoned rough is reported to be typical of the Ootu Mine in Sri Lanka. The explanation has to be that the...considerably) is not done in Bangkok, but in California, Japan, and Switzerland. The donor of the crucibles mentioned...Rayner-type refractometers are also now made in Japan. The most recent developments in conventional refractometry |  | | Book | | Malachite 47 Moonstone & Some Other Feldspars 47 Opal 49 Peridot 53 Ruby & Sapphire 54 Spinel 57 Tanzanite...gemstone, especially on emerald, ruby, sapphire, opal, jade, star gems and catās-eye gems. For example...stones with a diamond-like transparency. For black opal, opaque stones tend to be more highly valued than...all treat- Fig. 1.10 Anearly 20th century black opal ring. The play of colorand intensity of the red...type is the play of color found in opal. See the section on opal for more information about evaluating |  | | Journal (issue) | | SuwaSeikosha Seikosha group of companies, reThe Suwa group of companies, renowned nowned in the jewellery...company Suwa Seikosha. Ltd., of of Suwa Seikosha. In November 1983 the Creative Jewel Group of of Suwa Seikosha...kindly sent to the laboratory at the end of 1984 by Suwa Seikosha, who also confirmed confirmed that the...synthetic emerald from Mr K. Yamashita on behalf of the Suwa Seikosha group of companies. The author also acknowledges...synthetic J. Gemmol. quartz. J. Gemmol. Soc. Japan. Japan. 8, 103-17. Bosshart, G. 1981. 1981. Die Unterscheidung |  | | Journal (issue) | | mssttoonneess qquuaalliittyy aanndd vvaalluuee Yasukazu Suwa, "Gemstones quality and value. Volume 1", 32 X 21...cm, 143 pp., Sekai Bunka Publishing Inc., Tokyo, Japan, 1e editie 1993 (Japans), 2e editie 1999 (Japans...Geonieuws 25(6), juni 2000 ļ Figuur 2 De Sunnyside mine, heropgevuld met afbraakmateriaal en herbegroeid...Fodi. ļ Figuur 3 Overblijfselen van de Sunnyside mine. Naar L. Florin (1971) Pyroxmangiet is triklien...ļ· ļ· ļ· Taguchi mine, Shidara, Aichi Prefecture, en Iwaizumi, Iwate Prefecture, in Japan, met uitzonderlijk |  | | Journal (issue) | | Gemology, contact GIA Japan, Okachimachi Cy Bldg., 5-15-14 Ueno, Taitoku, Tokyo 110, Japan. Our Canadian goods...[AGA]; the Association of Gemological Laboratories, Japan [AGJ]; the International Gemological Institute [IGI];...Kaplan of Lazare Kaplan International in New York City for their comments. Finally, the authors would like...Introduction to Vision. Natural History Press, Garden City, NY, 227 pp. Born M., Wolf E. (1980) Principles...GEMS & GEMOLOGY FALL 2001 217 Two Unusual OPALS Opal is known for its bright, multihued play-of-color |  | | Journal (issue) | | Tanzania|Rainbow moonstone from Malawi|News from the Oceanview mine, Pala, California|Scheelite from Inner Mongolia|Aging...Discoverer of TsavoriteāCampbell Bridgesāand His Scorpion Mine By Bruce Bridges and Jim Walker Gemmological Briefs...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...(info@stonegrouplabs.com) Stone Group Laboratories Jefferson City, Missouri, USA Brendan M. Laurs References Arlabosse |  | | Journal (issue) | | vice-president of the GIA eastern headquarters in New York City, Bob Crowningshield has been with the GIA Gem Trade...purchased by American dealers, who often had the old-mine stones recut into modern styles by European cutters...founded the Museum of Contemporary Crafts in New Yorlz City. Shortly thereafter, Webb implemented America House...outline the detection of polymer-impregnation of opal as a n example o f the use of infrared spectroscopy...detailed example of how this is applied to impregnated opal appears below. Not only does infrared spectroscopy |  | | Journal (issue) | | occurrence of the emerald, said to be the Cobra Mine* in South Africa, was recognizable by the totality...discovered at the open-cast site of the Jagersfontein mine in South Africa's Orange Free State in 1893. The...nor has it caused their early demise. The Kollur mine, in the vicinity of Golconda, India, is said to...account of this feldspar and of the Harts Range mine in Northern Territory. SG 2.57, RI 1.520-1.527....at Lesotho's diamond mine. Indiaqua, 29,27-33,17figs(13 in colour), 1981. The mine at Letseng-la-Terai |  | | Journal (issue) | | Gemology, contact GIA Japan, Okachimachi Cy Bldg., 5-15-14 Ueno, Taitoku, Tokyo 110, Japan. Our Canadian goods...plagued by the Asian downturn later in the decade. Japan struggled through most of this period, while the...marketed, and merchandized. In diamonds especially, the mine-to-market process has been severely tested. Vertical...became increasingly important, as production from Japan declined. This article provides a comprehensive...diamond, garnet, jade [both jadeite and nephrite], opal, peridot, quartz, spinel, tanzanite, topaz, and |  | Arasuna, Akane, Okuno, Masayuki, Mizukami, Tomoyuki, Akaogi, Masaki, Yokoyama, Tsukasa, Okudera, Hiroki, Arai, Shoji (2014) The role of water in coesite crystallization from silica gel. European Journal of Mineralogy, 25 (5) 791-796 doi:10.1127/0935-1221/2013/0025-2331 | Journal (article/letter/editorial) | | University, Kakuma-machi, Kanazawa, Ishikawa 920ā1192, Japan *Corresponding author, e-mail: aarasuna@stu.kanazawa-u...Chemistry, Gakushuin University, Tokyo 171ā8588, Japan Abstract: Structural changes in silica gel after...multi-anvil apparatus at Gakushuin University, Japan. The sample was shaped into a cylinder with the...Grant-in-Aid for Challenging Exploratory Research of the Japan Society for the Promotion of Science (SPS), Grant...Koyano, M. (2010): Shock compression of synthetic opal. J. Phys.: Conf. Ser., 215(012147), 1ā5. Kamiya |  | | Book (edition) | | 22 23 24 25 26 27 28 29 30 31 Spodumene Quartz Opal Turquoise Lapis Lazuli Jade ā Geology and Mineralogy...Gemstonesā becoming āColour and Colour Enhancementā, and āOpalā xiii Preface to the Fifth Edition being extracted...Pierre Gilson including, most importantly, synthetic opal, both white and black, and a corresponding ingenuity...stoneā, a special type of glass closely resembling opal in appearance. Quartz, which for many years has...amethyst, which are now produced in Russia and Japan on a commercial scale. Alteration in the colour |  | | Journal (issue) | | SECRETARIES Emmanuel Piat, France Fujio Takada, Japan DIRECTORS Jacqueline Grande, USA Michael Haag, Germany...Tanzania Clement Sabbagh, Brazil Capt. Ramji Sharma, Japan Avner Sofiov, Israel Surasit Sriorathaikul, Thailand...its membership, all sectors of our industry from mine to market in 45 diļ¬erent countries and is engaged...exhibitors. The show was oļ¬cially launched at the Japan (IJT) show in January. In May a marketing and promotion...committed $30,000 and A miner preparing timber the Japan Ruby Promotion which is used to shore-up the Group |  | | Journal (issue) | | Corundum-fuchsite-kyanite rock from India ā¢ Cristobalite and opal mixture from Madagascar ā¢ Jeremejevite from Madagascar...EDITORIAL REVIEW BOARD Shigeru Akamatsu Tokyo, Japan C. S. Hurlbut, Jr. Cambridge, Massachusetts Thomas...Gemology, contact GIA Japan, Okachimachi Cy Bldg., 5-15-14 Ueno, Taitoku, Tokyo 110, Japan. Our Canadian goods...assigned to Sumitomo Electric Industries, Osaka, Japan. Detailed production information for the following...creation of a fine suite of peridot jewelry from the mine in the Himalayas to the manufacture of the necklace |  | | Book (volume) | | Field Trip Guide Book Vol. 6 MINERAL DEPOSITS OF JAPAN AND THE PHILIPPINES r QE 304 . A14 1992 v.6 The...Field Trip Guide Book Vol. 6 MINERAL DEPOSITS OF JAPAN AND THE PHILIPPINES The Society of Resource Geology...Tokyo 107, Japan 1992 29th IGC FIELD TRIP GUIDEBOOK Volume 6 : Mineral Deposits of Japan and the Philippines...building 9-6-41 Akasaka, Minato-ku, Tokyo 107, Japan Technical Editors Technical Reviewer: Editorial...Harufumi Noro Geological Survey of Japan 1-1-3 Higashi, Tsukuba 305, Japan Copyright Holder: The Society |  | | Book | | 200 known here-holds the productive Mwadui diamond mine, known for Yeryfine, rare, pink diamonds. Emerald...Uvite-Dravite Chrome Tourmaline 99 Chapter 8. Prase Opal from Haneti Hill, Tanzania 103 Location 104 Geology...Williamson Mine and operations. 21 Figure 2.5. A 2. 9-carat pink diamond from the Williamson Mine. 25 Figure...crystal. 77 Figure 3.12. Umba, Tanzania, corundum mine. 42 Figure 6.3. Campbell Bridges. 78 Figure 3...(Maji Mota) Mine, Tanzania, emerald. 51 Figure 4.2. Map of the Manyara (Maji Mato) emerald mine, Tanzania |
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