 | | Journal (article/letter/editorial) | | and Chemical Composition of Penglai Sapphire in Hainan Province, China Guang-Ya Wang 1,2 , Xiao-Yan Yu 1...Penglai School of Gemology, China University of Geosciences, Beijing 100083, China; 2009200044@cugb.edu.cn...and Mineral Resources, China University of Geosciences, Beijing 100083, China Southern Marine Science...Guangdong Laboratory (Guangzhou), Guangzhou 511458, China Key Laboratory of Deep-Earth Dynamics, Institute...Academy of Geological Sciences, Beijing 100037, China Shandong Academician Workstation of Diamond Mineralization |  | | Journal (article/letter/editorial) | | testable. Introduction Most of the worldās current sapphire production is taken from recent or palaeo-alluvial...distributed in eastern Australia, Thailand and eastern China. The lack of understanding of corundum genesis and...relationship between the occurrence of alluvial sapphire deposits and the presence of basaltic rocks in...Coldham 1985; Krosch and Cooper 1990), eastern China (Keller and Wang 1986; Guo et al. 1992), the Indochina...deposits of the gem-quality variety sapphire in eastern Australia, eastern China, the Indochina region of southeastern |  | Peucat, J.J., Ruffault, P., Fritsch, E., Bouhnik-Le Coz, M., Simonet, C., Lasnier, B. (2007) Ga/Mg ratio as a new geochemical tool to differentiate magmatic from metamorphic blue sapphires. Lithos, 98 (1) 261-274 doi:10.1016/j.lithos.2007.05.001 | Journal (article/letter/editorial) | | found in alkali basalts (e.g. southeastern Asia, China, Africa) are commonly medium-rich to rich in Fe...elements can act as the signature of a single gem-deposit as did oxygen isotope composition (Yui et al.,...matter of debate. Geological settings for each ore deposit are briefly presented in the corresponding section...southeastern Asia, China, and Africa (Fig. 1, Table 2). In the Pailin alluvial deposit (Cambodia), Sutherland...l. Sam Sai (southern Laos) is also an alluvial deposit and contains dark blue and blue-green sapphires |  | | Journal (article/letter/editorial) | | worked into economic concentrations of sapphire. KEYWORDS: sapphire, uranium-lead dating, inclusions, zircon...Australia. Introduction A LARGEnumber of important sapphire and ruby gemfields are associated with largely...Kouang Tcheoci Wan and Hainan Island in Southern China; Mercaderes Rio Mayo area in Colombia (Keller et...predominantly alkaline (with the exception of Southern China and Nigeria). (d) Ultramafic xenoliths (predominantly...been reported from Ruddons Point, Fro. 2. Sapphire-anorthoclase xenolith fro:a basalt, Mt Leura, Hoy Province |  | | Journal (article/letter/editorial) | | pp. 1551ā1576 Trace-element compositions of sapphire and ruby from the eastern Australian gemstone...(LAāICPāMS) to measure trace-element concentrations in sapphire and ruby crystals from eight alluvial deposits...Tasmania, which is also within the gemstone belt. Our sapphire and ruby results reveal a continuum in trace-element...trace-element geochemistry, LAāICPāMS, corundum, sapphire, ruby, eastern Australian gemstone belt, subduction...Basalt-related gemfields of this type in southeastern Asia, China, Russia and eastern Australia have been collectively |  | | Journal (article/letter/editorial) | | South Asia (Thailand, Cambodia, Laos, Vietnam) and China yield particularly productive gem corundum deposits...phases found in BGY corundum-bearing xenoliths (anorthoclase, Robertson and Sutherland 1992; hercynite-magnetite...Representative ranges for columbite analyses, Australian sapphire inclusions, Grenville NYF pegmatites and African...Gahnospinel Uraninite Zircon Albite K-feldspar Anorthoclase Plagioclase Thorite Brockite Pyrrhotite Ni-richpyrrhotite...photographs of a euhedral feldspar inclusion in a sapphire (No. 5/10) from Braemar, New England: A Ca; B |  | | Journal (article/letter/editorial) | | associated volcaniclastic rocks as a source of sapphire in eastern Australia a a G. M. Oakes , L. M...associated volcaniclastic rocks as a source of sapphire in eastern Australia, Australian Journal of Earth...associated volcaniclastic rocks as a source of sapphire in eastern Australia G. M. OAKES, L. M. BARRON...England which hosts the world's largest producing sapphire mine at Kings Plains. The alluvial deposits of...strong local tribal variations in the nature of the sapphire, suggesting that they are derived by reworking |  | | Report (volume) | | associated placer deposits___.______. ______ Yogo sapphire deposit. _________________________________________...setting. ______________________________________ Sapphire-bearing dike_---_-----___-_----_----_------__Sapphires...reserveS--_-_________-.-p-_ __-______--__ Missouri River sapphire deposits .-___________-____-________-_-._ Location...____________________________________ Roek Creek sapphire deposit. _ __________________________________ Location..._________.___.._..___-._-Dry Cotton wood Creek sapphire deposit---... ____________________ Location __.._ |  | Zaw, Khin, Sutherland, F. L., Dellapasqua, F., Ryan, C. G., Yui, Tzen-Fu, Mernagh, T. P., Duncan, D. (2006) Contrasts in gem corundum characteristics, eastern Australian basaltic fields: trace elements, fluid/melt inclusions and oxygen isotopes. Mineralogical Magazine, 70 (6) 669-687 doi:10.1180/0026461067060356 | Journal (article/letter/editorial) | | generation (59 4 Ma). In contrast, a metamorphic sapphire-ruby suite (low-Ga, av. 30 ppm) here incorporates...interaction. The d18O values (5.1 6.2%) overlap magmatic sapphire values. Interactions at contact zones (T = 780...those from Australia, South East Asia, eastern China and eastern Russia (Sutherland et al., 2004a). A...(see Sutherland and Fanning, 2001). Weldborough sapphire f|eld Geological setting The two gem corundum...basalt ļ¬ows of two ages (46 Ma and 16 Ma). The main sapphire concentrations occur in the Weld River; here its |  | | Book (edition) | | 10 11 12 13 14 Diamond I Diamond II Ruby and Sapphire Beryl Chrysoberyl Spinel Topaz Tourmaline The...time, while diamonds have also been discovered in China in some quantity. Several new gem minerals, or minerals...knowledge. In the cases of emerald and ruby and sapphire new sources of supply have necessitated additional...this work of my articles on emerald, ruby and sapphire, and marble, as well as a number of illustrations...may scavenge and distill a range of elements and deposit these as economic concentrations of minerals or |  | Sorokina, Elena S., Karampelas, Stefanos, Nishanbaev, Tursun P., Nikandrov, Sergey N., Semiannikov, Boris S. (2017) Sapphire Megacrysts In Syenite Pegmatites From the Ilmen Mountains, South Urals, Russia: New Mineralogical Data. The Canadian Mineralogist, 55 (5) 823-843 doi:10.3749/canmin.1700016 | Journal (article/letter/editorial) | | pp. 823-843 (2017) DOI: 10.3749/canmin.1700016 SAPPHIRE MEGACRYSTS IN SYENITE PEGMATITES FROM THE ILMEN...identified as syngenetic inclusions within the blue sapphire. Monazite-(Ce), sub-micron grains of uraninite...in Chantaburi province (Thailand). Keywords: sapphire, syenite pegmatite, Ilmenogorsky complex, inclusions...weathering of primary deposits. Discovering gem sapphire deposits in situ within the host rocks is signiļ¬cantly...the continental margin (Rusin et al. 2012). The sapphire deposits are found in the syenite pegmatites enclosed |  | | Journal (issue) | | and Y a n Liu NOTES AND NEW TECHNIQUES Ruby and Sapphire from the Southern Ural Mountains, Russia Alexander...Alexander J. Kissin Primary occurrences of ruby, pink sapphire, sapphires of other colors, and spinel have been...specimens were relatively large (pink and blue sapphire up to 10 x 20 mm; ruby up to 10 mm) but not of...marble quarry, where he discovered ruby, pink sapphire, and other varieties of corundum in situ (figure...(figure 1).In 1983, ruby and several varieties of sapphire were found in marble at Choolzsinsolzoye near |  | Pin, C., Monchoux, P., Paquette, J.-L., Azambre, B., Wang, R. C., Martin, R. F. (2006) IGNEOUS ALBITITE DIKES IN OROGENIC LHERZOLITES, WESTERN PYRENEES, FRANCE: A POSSIBLE SOURCE FOR CORUNDUM AND ALKALI FELDSPAR XENOCRYSTS IN BASALTIC TERRANES. II. GEOCHEMICAL AND PETROGENETIC CONSIDERATIONS. The Canadian Mineralogist, 44 (4) 843-856 doi:10.2113/gscanmin.44.4.843 | Journal (article/letter/editorial) | | Earth Sciences, Nanjing University, Nanjing 210093, China and Laboratoire de MĆ©canisme de Transfert en GĆ©ologie...Aspen, P., Upton, B.G.J. & Dickin, A.P. (1990): Anorthoclase, sanidine and associated megacryst in Scottish...Vichit, P. & Sutherland, F.L. (1995): An unusual sapphire ā zircon ā magnetite xenolith from the Chanthaburi...Fritsch, E. (2004): The Dusi (Garba Tula) sapphire deposit, central Kenya ā a unique Pan-African corundum-bearing...L. & Coenraads, R.R. (1996): An unusual ruby ā sapphire ā sapphirine ā spinel assemblage from the Tertiary |  | | Journal (issue) | | 536 Geographic Origin Determination of Blue Sapphire Aaron C. Palke, Sudarat Saeseaw, Nathan D. Renfro...Shane F. McClure In some cases, the value of a sapphire depends strongly on its geographic origin. This...details the origin data GIA has collected for blue sapphire and describes its methodology for using the data...San Diego, California Sydney, Australia Wuhan, China Edward W. Boehm A.J.A. (Bram) Janse Guanghai...Chattanooga, Tennessee Perth, Australia Beijing, China James E. Butler Mary L. Johnson James E. Shigley |  | | Journal (issue) | | high temperature inducements the colour of blue sapphire is improved and is known to the trade. The technical...technical and gemmological aspects of blue sapphire treatments were described by Jobbins (1971), Harder...(1982). Further, colour improvement of yellow sapphire and its colour instability were detailed by Schiffman...Lanka sapphires, and such colour-coated violet sapphire was detected by Ohguchi (1982). The colour-coated...Nisevich, S. D. (1975): Altering the appearance of sapphire crystals. United States Patent 3, 897, 529. Filed |  | | Report (issue) | | in rainy seasons. (From Wudalianchi Volcanoes in China, reproduced with permission of Shanghai Scientific...Technical Publishers, Shanghai, Peopleās Republic of China.) A Survey of Cenozoic Volcanism on Mainland Asia... Vii 2 J. L. Whitford-Stark EAST CHINA SEA SOUTH CHINA SEA Figure la. Distribution of exposed...PRODUCTS 1 OF CENOZOIC VOLCANISM IN ASIA KOREA CHINA-KOREA During Cretaceous time, the landscape of...mainland Asia 5 CHINA Cenozoic volcanics crop out in a large number of areas in China, particularly in |  | | Journal (issue) | | 4 Cover 1 Cinnabar, calcite. 4x Š cm. Toltgin deposit, Guizhou Prov., Chinn. Fersman Mineralogical Museum...inclusions. Š”gophŠ¾tolŠømiŠæŠµsceRŠµ (77Š). Liaonin Province, China. Specimen: Yana Baa. (right) Photoluminescence of...the cracA offerruginous quartz. The KasmŠænachi deposit, Kazakhstan. The photograph was taken Š°Š³ 77Š, 20'...aŠæifŠ³cial tutuine.scent coating. The Muruntau deposit, Uzbekistan. 10'. Specimen: V. Moroshkin. (left)...Š Ń Ń across) with vacuoles. Liaonin Province, China, Specimen: Yana Bao. (left) Laser luminescence |  | | Journal (article/letter/editorial) | | from the text by simply using the code of each deposit in the chart. This code can be created by combining... . . . . 3.4. Metamorphic chromium (gemstone) deposit . . . . . . . . . . . 3.5. Chromium supply and... . . . . . . . . 11.3. Structure-bound copper deposit . . . . . . . . . . . . . . . . . . . . . . . ...the only inexhaustible low-grade, large-tonnage deposit on earth? The ļ¬rst step has already been taken...countries. The current situation in the Asian countries China and India is another example for the rightness of | | | Journal (article/letter/editorial) | | from the text by simply using the code of each deposit in the chart. This code can be created by combining... . . . . 3.4. Metamorphic chromium (gemstone) deposit . . . . . . . . . . . 3.5. Chromium supply and... . . . . . . . . 11.3. Structure-bound copper deposit . . . . . . . . . . . . . . . . . . . . . . . ...the only inexhaustible low-grade, large-tonnage deposit on earth? The ļ¬rst step has already been taken...countries. The current situation in the Asian countries China and India is another example for the rightness of |  | | Journal (issue) | | Green quartz with Brazil-law twinning ā¢ Synthetic sapphire with unusual yellowish green bodycolor ā¢ Spinel...recent G&G article on berylliumdiffused ruby and sapphire (J. L. Emmett et al., Summer 2003, pp. 84ā131)...counterclockwise from top right, are a 5.37 ct purple sapphire, a 2.18 ct emerald, a 2.02 ct Fancy yellow diamond...vendor to extol the quality of color in an orange sapphire (figure 9), he or she would be creating a duty...re-treatment.ā āBecause the finest colors of ruby and sapphire are so rare, heat treatment has traditionally |  | | Book | | Kostitsyn and Vasiliy A. Kotlyarov Origin of Blue Sapphire in Newly Discovered SpinelāChloriteāMuscovite... and a Distinguished Visiting Professor at the China University of Mining and Technology. His research...on nontraditional critical element resources of China, intraplate basaltic volcanism, genesis of sapphires...around the globe. Ruby is the red variety and sapphire is the blue variety, while all other coloured...sapphires and need a colour preļ¬x (e.g., pink sapphire, yellow sapphire). A comparative study of ruby chemistry |  | | Journal (issue) | | Guanghai Shi Explores the art form of jade carving in China across five periods from the late Neolithic Age...attractive rhodonite-rich rocks from this Swiss deposit. p. 92 REGULAR FEATURES p. 143 29 The Dr. Edward...ā¢ Pallasitic peridot with iridescent needles ā¢ Sapphire with phenomenon resembling play-of-color ā¢ Staurolite...ā¢ Sapphires from Montana and Australia ā¢ Blue sapphire from Rakwana, Sri Lanka ā¢ Trapiche gems ā¢ Carvings...jewelry ā¢ Ethical Gem Fair ā¢ Bicolor synthetic sapphire ā¢ Gianmaria Buccellati Foundation Award ā¢ GIA |  | | Report (issue) | | metamorphosed hydrothermal system at Pine Canyon. Piute County, Utah. U.S.A. [abs.]: Mineralogical Society (London)...geochemical studies of the Emperor gold telluride deposit, Fiji: Economic Geology, v. 82, p. 345-370. Ahmad...and mineralogy of the Cerrillos copper deposit, Santa Fe County, New Mexico: New Mexico Geological Society... E. E.. 1991. The igneous rocks of the Lincoln County porphyry belt, New Mexico: constraints on magma...geochemical and isotopic characteristics of the Lincoln County porphyry belt. New Mexico: implications for regional |  | | Book | | long (Marty, 2004 ). AFRICA widely in Litchfield County, where good crystals were taken from quartz veins...region (Brunet, I 977b ). NEW YORK Amity, Orange County. At many isolated collected sites between the towns...Litchfield County. Ilmenite masses and crystals from somewhere near Washington, Litchfield County, were described...Lake Road occurrence, Faraday Township, Hastings County. In fall 1994, Dan and Shelley Lambert extracted...Madawaska [Faraday] mine near Bow Lake, Hastings County. Some of the world's finest ilmenite specimens |  | | Report (volume) | | Chicago. _ . Los Angeles County Mus. Quart.; Sci. Ser., Paleontology-Los Angeles County Museum Quarterly; Science...Beryllium deposits of the Mount Antero region, Chaffee County, Colorado: U. S. Geol. Survey Bull. 982-D, p. iii...Gate Canyon and Ralston Creek areas, J efferson County, Colorado: U. S. Geol. Survey Circ. 320, 16 p....ground-water resources of the Cloquet area, Carlton County, Minnesota: Minn. Dept. Conserv., Div. Waters Bull...2. Ground water in the Litchville area, Barnes County, North Dakota: N. Dak. Geol. Survey Ground-Water |
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