 | | Report (issue) | | Shijiangshan lead-zinc mine at Lixi, Inner Mongolia, China (this mine, begun in 2008, has also turned out exceptional...from the Shijiangshan mine, Lixi, Inner Mongolia, China. Weinrich Minerals, Inc. specimen and photo. Dan...Jensen thumbnails from the Yaogangxian mine in China, and one from Tsumeb—with assurances that many others...Yaogangxian mine, Chenzhou Prefecture, Hunan Province, China. Ex Martin Jensen collection. Weinrich Minerals...Yaogangxian mine, Chenzhou Prefecture, Hunan Province, China. Ex Martin Jensen collection. Weinrich Minerals |  | | 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...from Muling, China • “Star of David” spinel • Colorless HPHT synthetic diamonds from China • Polymer-treated...Washington, DC Los Angeles, California Wuhan, China Alan T. Collins Robert E. Kane Guanghai Shi |  | | Journal (article/letter/editorial) | | mined in Afghanistan, Australia, Austria, Bulgaria, China, India, Madagascar, Namibia, Nigeria, Pakistan,...1989). Light green emerald occurs with ruby, chrysoberyl (BeAl2O4), sapphire, topaz, fluorite, margarite...ultramafic bodies (Grundmann and Morteani, 1995). The chrysoberyl crystals show the alexandrite effect in which...(2004). 5.7. China The Dyakou emerald occurrence is in Yunnan Province in southern China. The occurrence...plagioclase veins (which also contain emerald, chrysoberyl (BeAl2O4), phenakite (Be2SiO4) and bromellite |  | | Report (issue) | | Grades .... Occurrence .... Industry .... IX. Chrysoberyl . . Introduction .... Uses .... 5 5 G 6 . 6-7...associated minerals are perovskito, anatase, rutile, chrysoberyl, tourmaline, kyanite whereas the pebbles found...corundum has also been obtained in Afghanistan, China, the Ural Mountains and Queensland. In the United...minerals in the byon are ruby, sapphire, spinel, chrysoberyl, tourmaline, garnet, zircon, beryl, quartz, scapolite...semi-precious stones as amethyst, aquama rine, chrysoberyl, garnet, moonstone, peridote, ruby, spinel, topaz |  | Kamitani, M., Okumura, K., Teraoka, Y., Miyano, S., Watanabe, Y. (2007) Mineral Resources Map of East Asia, Geological Survey of Japan. | Map | | metal deposits, especially rare earth deposits in China. The South Korean mineral deposit data were supplied...cassiterite f-c: fixed carbon lpd: lepidolite cbl: chrysoberyl fl: fluorite luz: luzonite cbn: cubanite ...sections. Geological Survey of Japan, AIST. 2．China Ai, X. (chief ed.) (1996) The discovery history...history of mineral deposits of Shandong Province, China. Geol. Pub. House, Beijing, 305p. (in Chinese with English...mineral deposits of Tibetian Autonomous Region, China. Geol. Pub. House, Beijing, 76p. (in Chinese and |  | | Book | | exceptional crystal form such as the cinnabars from China, or unique assemblage such as the zeolites from...Province, Shiga Prefecture, Honshu References 2. China Wanshanchang Mines, Toon Yen (Tungyen) Prefecture...Corundum, Varieties Ruby and Sapphire Spinel Chrysoberyl India ‘Jewel Tunnel” Bombay District, Maharashtra...the penetration twin crystals of cinnabar from China, the kunzites from Afghanistan, and the topazes...treated. The classic mineral localities of Japan, China, Burma, India, Sri Lanka (Ceylon), Afghani- stan |  | | Report (issue) | | 63 Finland's Famous Find Peter Lyckberg Page 64 China: An Emerging Source of World-Class Beryl Guanghua...pressure, beryl becomes unstable and breaks down to chrysoberyl, phenakite, and quartz (Burt, 1978). Locations...production of wonderful aquamarine from Afghanistan, and China (page 64) is an emerging source for many fine mineral...the first decade of the 20th century, Imperial China was a major consumer of California tourmaline due...in 1911, the demand for California tourmaline in China quickly dried up. In the U.S., George Kunz and many |  | | Journal (issue) | | (see Box A). Because the crystallization of chrysoberyl progresses through a metastable phase, the known...transition to a low temperature phase (α-BeAl2O4, chrysoberyl) at 1826°C which is then stable down to and at...However, under special conditions, the α-phase (chrysoberyl) can be formed directly from the melt and chromium-...chromium- and vanadium-bearing chrysoberyl crystals can be grown (Gurov et al., 1986, 2003; Gurov and Tsvetkov...the container (Figure 4). Various aspects of chrysoberyl and alexandrite synthesis have been discussed |  | | Journal (issue) | | ........................................... 17 China ..................................................were found by farmers in the Ailaoshan Mountains, Yunnan province. The present ruby mining activities are...been found in the Wenshan district of southeastern Yunnan province. These emeralds have an attractive, bright... Yunnan’s Nujiang, and other places throughout China. However, of the thousands of granitic pegmatites...garnet. Pyrope garnets occur mainly in eastern China. These gem-quality garnets are transparent, deep |  | | Journal (article/letter/editorial) | | eastern Australia, far eastern Russia, eastern China, Laos, Vietnam, Thailand, Rwanda, Cameroon, Nigeria...cases), beryllonite, bromellite, chondrodite, chrysoberyl (with some alexandrites as special cases), clinohumite...a variety of beryl, alexandrite a variety of chrysoberyl.) The emeralds and alexandrites in these deposits...eastern Australia, far eastern Russia, eastern China, Cambodia, Laos, Vietnam, Thailand, Rwanda, Cameroon...Malsy, A.-K., 2011, Alexandrite and colourchange chrysoberyl from the Lake Manyara alexandriteemerald deposit |  | | Book | | OPAL ZIRCON TURQUOISE CAT'S EYE AMETHYST CHRYSOBERYL BLACK OPAL PERIDOT LAPIS LAZULI MOONSTONE...STONES SEMIPRECIOUS STONES .... (Continued) CHRYSOBERYL AND OPAL . . .... THE QUARTZ GEMS THE QUARTZ...delicate and subtle shades of tourmaline and chrysoberyl, beauty of color these fragments of is the...wrought finished. as these arts are practised in China. the manual arts the in the execution of his ...certain grotesque humor, the real- lapidaries of China conventionalize their subjects, frequently developing |  | | Journal (issue) | | Measurement and interpretation of growth patterns in chrysoberyl, including alexandrite Dr Karl Schmetzer Abstract:... using chrysoberyl as an example. The strong pleochroism of the chromium-bearing chrysoberyl variety...described in detail. Keywords: alexandrite, Brazil, chrysoberyl, crystal habit, Madagascar, optic properties...Measurement and interpretation of growth patterns in chrysoberyl, including alexandrite biaxial gemstones is limited...crystallographic axes a, b and c in optically biaxial chrysoberyl; the optic plane is represented by the ac-plane |  | | Journal (issue) | | Huong-Truc Lau), Vietnam China Hanoi Red River Shear Zone Laos South China Sea Vietnam Cambodia Cenozoic...submitted to National Gemstone Testing Centre (NGTC), China, have been examined. It was found that these gem-quality...DTC research centre and Yang Fan, Forevermark, China, who have all provided useful information about...268–83 The Author Zhonghua Song CGC, NGTC, Beijing, China. Taijin Lu Ph.D., Chief Researcher, NGTC, Beijing...Gemstone Testing Center (NGTC), Beijing 100013, China The Journal of Gemmology / 2012 / Volume 33 / |  | | Journal (issue) | | Report 2023–2024 | Jewellery Consumer Trends in China | De Beers Group Sightholder Summit 2023 Presentations...Chatoyant Quartz Misrepresented as Cats-eye Chrysoberyl in an Antique Jewel | Stabilised Aquamarine Cabochon...Dietmar Schwarz Zmpery Gemology Lab, Shanghai, China Jaroslav Hyršl Prague, Czech Republic Menahem...Pasadena, USA Andy H. Shen China University of Geosciences, Wuhan Guanghai Shi China University of Geosciences...Excellence in Research for Australia (ERA) Journal List; China National Knowledge Infrastructure (CNKI Scholar); |  | | Journal (issue) | | the South Seas, and myriad shapes and colors from China. And where would we be without the process of incorporating...Lanka, India, Afghanistan, Pakistan, Russia, and China), and Australia. The major sources for diamonds...Cultured pearls from French Polynesia, Australia, and China became increasingly important, as production from...g., Russia, North America, western Africa, and China), they were less significant—in terms of the variety...photo by Maha Tannous. Figure 5. Cat’s-eye chrysoberyl is among the most prized of phenomenal stones; |  | Konzett, Jürgen, Schneider, Tobias, Nedyalkova, Latina, Hauzenberger, Christoph, Melcher, Frank, Gerdes, Axel, Whitehouse, Martin (2018) Anatectic Granitic Pegmatites from the Eastern Alps: A Case of Variable Rare-Metal Enrichment During High-Grade Regional Metamorphism – I: Mineral Assemblages, Geochemical Characteristics, and Emplacement Ages. The Canadian Mineralogist, 56 (4) 555-602 doi:10.3749/canmin.1800008 | Journal (article/letter/editorial) | | of variable complexity are present involving chrysoberyl, cordierite, Nb-Ta-Sn-Ti oxides, zircon, and...phases Apatite Cheralite-group phases Wyllieite Chrysoberyl Uraninite Thorianite Gahnite pegmatite-1 G ...muscovite, paragonite, apatite, zircon, staurolite, chrysoberyl, cordierite, cassiterite, CGP, gahnite, and graphite...contents not exceeding 340 lg/g. Cordierite, chrysoberyl, and staurolite Cordierite was only found in...centimeter-sized beryl crystal and associated with chrysoberyl and staurolite (Fig. 16a). Its composition is |  | | Book | | Diamond PAGE PAGE 44 34 Beryl PAGE 56 Chrysoberyl & Spinel PAGE 70 100 E s T N Jade PAGE...before 3000 B.C. and Sumer (Iraq) by 2500 B.C. China, India, Greece, and Rome received gemstones from...through 20 Ancient and modern caroings fro1n China and Japan including rutilated Brazilian quartz sphere...including topaz, amethyst, aquamarine, morganite, chrysoberyl, peridot, smoky quartz, citrine, calcite, rhodochrosite...back fabulous stones. in Africa, the Soviet Union, China, and Australia. DIAMONDS WERE REVERED AND HIGHLY |  | | Journal (article/letter/editorial) | | Geological Sciences , Beijing, People's Republic of China Published online: 06 Jul 2010. To cite this article:...Geological Sciences, Beijing, People's Republic of China Downloaded by [UQ Library] at 22:34 13 March 2015...Chengchou City, Hunan province, People's Republic of China (PRC). There is a close spatial and temporal association...Be abundance in the Yanshanian granite in South China is 8.6 ppm (Department of Geology, Nanjing University...phenacite, taafeite, bavenite, Be-maragrite, chrysoberyl, beryllium garnet, and euclase. The beryllium |  | | Book | | the Incomparable Mineral Ruby and Sapphire Chrysoberyl, Topaz and Spinel Beryl The Garnet Group Tourmaline... Ceylon gem gravel C. Corundum group D. Chrysoberyl and spinel E. Beryl group F. Garnet group...America, but in Britain as a variety name for chrysoberyl. The whole question of the nomenclature of precious...Cryptocrystalline, banded, various Alexandrite Chrysoberyl Almandine Garnet Commonest purphsh-red variety...Massive green, jade-like variety Cat’s-eye Chrysoberyl Name Ceylonite Spinel Dark blue to black |  | | Journal (issue) | | excavations at 36th Street and Broadway, and a chrysoberyl crystal that Joseph Peters of the American Museum...History has described as "the finest specimen of chrysoberyl found in the United States," found at 93rd Street...from alJ over the world, including the US, Mexico, China, and Iran. The main focus is illustrated by using...came out about 25 years ago, in Hebei Province in China, but that the locality has long been depleted; Debbie...in Beijing. Her blue hemimorphites from Wenshan, Yunnan Province, were better, much better, than those |  | | Journal (issue) | | Gemewizard Ltd., Ramat Gan, Israel; Guanghai Shi, China University of Geosciences, Beijing; James E. Shigley...and sunset padparadscha sapphire, honey-colour chrysoberyl and Paraíba-colour tourmaline. Each includes...on the history of pearl culturing in Japan and China in recognition of the 100-year anniversary of the...zircon, apatite, topaz, sillimanite, fluorite, chrysoberyl, chal- For more than a century, the area near...ruby, sapphire, tourmaline, spessartine and chrysoberyl, as well as other gem minerals. The mining area |  | | Report (volume) | | subvarieties. Thus, alexandrite and ruby are chrysoberyl and corundum with distinctive coloring caused...WITHOUT SILICA Continued Oxides Continued Spinel Chrysoberyl Alexandrite Halides Halite Marshite Fluorite...specimens of two other aluminum oxides, spinel and chrysoberyl, show infrared luminescence caused by the chromium...ion; and alexandrite, the deep-blue or green chrysoberyl, shows a strong infrared emission. A number of...Magoung, Burma. Niigata Prefecture, Japan. Yunnan, China. Buena Vista de Cueller, Guerrero, Mexico. |  | | Book | | placer or alluvial diamond deposits are found in China, particularly in the Yuan River in Hunan, and in...of the cat's-eye and alexandrite varieties of chrysoberyl (Fig. 1-3), ruby, garnet, spinel, zircon, peridot...Figure 1-3. Blue star sapphires andfine cat's-eye chrysoberyl are among the most prized ofSri Lanka's gemstones...tombs and the treasures of the Forbidden City of China, all boast a wealth of Sri Lanka's gemstones. According...deposits, white topaz, beryl, tourmaline, and chrysoberyl may have come from the localized pegmatites. | | | Book | | placer or alluvial diamond deposits are found in China, particularly in the Yuan River in Hunan, and in...of the cat's-eye and alexandrite varieties of chrysoberyl (Fig. 1-3), ruby, garnet, spinel, zircon, peridot...Figure 1-3. Blue star sapphires andfine cat's-eye chrysoberyl are among the most prized ofSri Lanka's gemstones...tombs and the treasures of the Forbidden City of China, all boast a wealth of Sri Lanka's gemstones. According...deposits, white topaz, beryl, tourmaline, and chrysoberyl may have come from the localized pegmatites. |  | | Journal (issue) | | Gemmological Institute, China University of Geosciences, Wuhan 430074, P.R. China ABSTRACT: The numbers...most abundant; the gemstones include corundum, chrysoberyl, beryl, spinel, topaz, zircon, tourmaline garnet...two jade types with important deposits in Canada, China, Russia, South Australia and New Zealand. Jadeite/jadeitite...alexandrite, aquamarine, tourmaline, topaz, chrysoberyl, amethyst, opal and morganite are the main coloured...Province is a major source of the beryl and chrysoberyl gems and of the kunzite variety of spodumene |
|
