 | | Journal (issue) | | now came his way to travel official farther to Japan, again acting in similar offIcial capacities. He...Kaempfer Kaempfer (1651-1715) also a visitor to Japan in 1690. Thunberg's collection was dispatched to...described over 300 previously unknown plants. He left Japan in December 1776, stopping during his voyage home...Batavia, Colombo, Cape Colony, and London, in the last city making the acquaintance of of a number of scientists...ruby, offering to give for it the ransom of the city, or in fact what the King would. But the King replied |  | Dzikowski, Tashia J., CempĂrek, Jan, Groat, Lee A., Dipple, Gregory M., Giuliani, Gaston (2014) Origin of gem corundum in calcite marble: The Revelstoke occurrence in the Canadian Cordillera of British Columbia. Lithos, 198. 281-297 doi:10.1016/j.lithos.2014.03.030 | Journal (article/letter/editorial) | | Origin of gem corundum in calcite marble: The Revelstoke occurrence in the Canadian Cordillera... Gaston, Origin of gem corundum in calcite marble: The Revelstoke occurrence in the Canadian Cordillera...MANUSCRIPT Origin of gem corundum in calcite marble: The Revelstoke occurrence in the Canadian Cordillera...PT The calcite marble-hosted gem corundum (ruby, sapphire) occurrence near Revelstoke, British Columbia...Omineca Belt of the RI Canadian Cordillera. Corundum occurs in thin, folded and stretched layers with |  | Voudouris, Panagiotis, Mavrogonatos, Constantinos, Graham, Ian, Giuliani, Gaston, Melfos, Vasilios, Karampelas, Stefanos, Karantoni, Vilelmini, Wang, Kandy, Tarantola, Alexandre, Zaw, Khin, Meffre, Sebastien, Klemme, Stephan, Berndt, Jasper, Heidrich, Stefanie, Zaccarini, Federica, Fallick, Anthony, Tsortanidis, Maria, Lampridis, Andreas (2019) Gem Corundum Deposits of Greece: Geology, Mineralogy and Genesis. Minerals, 9 (1) 49 doi:10.3390/min9010049 | Journal (article/letter/editorial) | | minerals Article Gem Corundum Deposits of Greece: Geology, Mineralogy and Genesis Panagiotis Voudouris... Abstract: Greece contains several gem corundum deposits set within diverse geological settings...in corundums are in equilibrium and/or postdate corundum crystallization and comprise: spinel and pargasite...15,347 ppm in deep red colored varieties. Each occurrence has both unique mineral assemblage and trace...peak. The Paranesti, Xanthi and central Naxos corundum deposits can be classified as metamorphic sensu |  | | Report (issue) | | . . . . . . . . . . . Virgin Lake celestite occurrence. . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . Gutz corundum occurrence. . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . Michaelis corundum occurrence. . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . Jewellville corundum occurrence . . . . . . . . . . . . . . . . . . . . ... .... " . . . .. . .. . . . Berger amazonite occurrence. . . . . . . . . . . . . . . . . . . . . . . |  | | Report (issue) | | Denbigh Lily Robertson occurrence Cancrinite Hill occurrence Davis Hill occurrence Princess sodalite mine...River tactite zone occurrence Morrison quarry Davis quarry York River corundum occurrence Childs Mine Rankin...Maynooth Eagles Nest occurrence Baptiste Lake South occurrences McFall Lake diopside occurrence Warwickite occurrence...Thompson Mine Hickey Mine Selby Hill sunstone occurrence National Graphite Mine McKenzie Lake Mine Bancroft...Mine Woodcox occurrence Padwell Mine Eagle Lake quarry Crystal Lake fluoborite occurrence Crystal Lake |  | | Journal (article/letter/editorial) | | Figure 2 (above). Bulk sampling at the Beluga occurrence, Baffin Island, Nunavut, July 2004. The hamlet...Large, loose sapphire crystal from the Beluga occurrence, Baffin Island, Nunavut, collected 14 September...sapphire near the original locality, the Beluga occurrence. TNG removed a 4.29-ton bulk sample in which...crystal embedded in matrix and gem from the Beluga occurrence, Baffin Island, Nunavut. The crystal measures...the bottom of the gem. Figure 6 (right). Aqpik occurrence, Baffin Island, Nunavut. Pictured are geologists |  | | Report (issue) | | barite occurrence Pakenham quarry Cedar Hill soapstone occurrence Galetta celestine occurrence Kingdon...Kingdon (Fitzroy, Galetta) mine Stanton lead occurrence Bellâs mine Calabogie area Bluff Point mine Calabogie...RenfrewâMcArthurs Mills area Hunt mine Dacre iron occurrence Keyfortmore mine Radnor mine Sunset mine Spain...Kuehl Lake occurrence Quadeville East mine Quadeville West mine Gutz corundum occurrence Michaelis corundum...Jewellville corundum occurrence Craigmont (Craig) mine Burgess mine Berger amazonite occurrence Biederman |  | Belley, Philippe M., Dzikowski, Tashia J., Fagan, Andrew, CempĂrek, Jan, Groat, Lee A., Mortensen, James K., Fayek, Mostafa, Giuliani, Gaston, Fallick, Anthony E., Gertzbein, Paul (2017) Origin Of Scapolite-Hosted Sapphire (Corundum) Near Kimmirut, Baffin Island, Nunavut, Canada. The Canadian Mineralogist, 55 (4) 669-699 doi:10.3749/canmin.1700018 | Journal (article/letter/editorial) | | 1700018 ORIGIN OF SCAPOLITE-HOSTED SAPPHIRE (CORUNDUM) NEAR KIMMIRUT, BAFFIN ISLAND, NUNAVUT, CANADA...Nunavut X0A 0H0, Canada ABSTRACT Gem-quality corundum (sapphire) occurs in scapolite-rich calc-silicate...A deposit of blue and colorless gem corundum (Beluga occurrence) is compared to a similar calc-silicate...lacking corundum but containing nepheline (Bowhead occurrence) and located 170 m to the SSW. Corundum formation...muscovite, corundum, and calcite. Late, lowtemperature zeolite mineralization is common in corundum-bearing |  | | Journal (issue) | | confirmed the results earlieroffindings ings (tourmaline, pargasite and zircon inclusions). In addition...discussed. Introduction Sapphire, the blue variety of corundum, is produced from numerous deposits distributed...greenish-blue stones, do not host the most coveted blue corundum. Sapphires from pegmatitic dykes and metamorphic...in Atkinson and Kothavala, 1985. In his book on corundum, Hughes (in press) press) also presents a from...(SSEF) Laboratory in ZĂźrich (Figure 1). Rough corundum cor}lndum of of gem quality Zurich from Soomjam |  | | Report (issue) | | MINERAL RESOURCE SERIES CORUNDUM by GIC Schneider & G Genis i-, ,\ ~I I B / ,\ ~.::'/::~--:-, ......}-{\;){(~}\{)\i;: ;1 ~il MINERAL RESOURCE SERIES CORUNDUM by GIC Schneider & G Genis edited by R Swart...NAMIBIA 1990 Open File Report JVIRS04 2 Abstract Corundum is known to occur in schists of the lower Swakop...Hohewarte Metamorphic Complex. Past production of corundum in Namibia was limited to about 100 t from Sandamap...lndex 4 Introduction Only a few occurrences of corundum are known in Namibia (Figure 1). They are all |  | | Journal (article/letter/editorial) | | Magazine, June 1998, Vol. 62(3), pp. 325 332 A corundum-quartz assemblage in altered volcanic rocks, Bond...Rosny Park, Tasmania, Australia ABSTRACT Unusual corundum-bearing rocks occur in the Bond Range, northern...quartz porphyry. The assemblage exhibits quartz and corundum in mutual contact, a rare phenomenon, in association...hydrothermal, granitederived fluids. This corundum occurrence appears to be unrelated to the sapphires...sapphires in placer deposits in Tasmania. KEYWORDS" Corundum, quartz, diaspore, pyrophyllite, andalusite, Tasmania |  | | Book | | Ilaria Adamo and Gabriele Lanzafame Gem-Quality Tourmaline from LCT Pegmatite in Adamello Massif, Central...Nikolaev, Jasper Berndt and Wolfgang Hofmeister Corundum Anorthosites-Kyshtymites from the South Urals...Fallick, Maria Tsortanidis and Andreas Lampridis Gem Corundum Deposits of Greece: Geology, Mineralogy and Genesis...LCT pegmatites of the Adamello massif, Italy. Tourmaline is considered as an important recorder of its...Rubies and sapphires are coloured gem varieties of corundum and can be found in various places around the |  | | | | carbonate, borate, and phosphate groups are included. Corundum, spinel, cuprite, rutile, cassiterite, calcite...garnet, epidote, vesuvianite, rhodonite, beryl, tourmaline, mica, feldspar, nepheline, zeolite, sodalite...may change the colour drastically, for example, tourmaline, garnet, topaz, quartz. Streak: Colour of Powder...fluorite, 5 apatite, 6 feldspar, 7 quartz, 8 topaz, 9 corundum, 10 diamond. For field identification it is sufficient...interest that on an absolute scale of hardness corundum is actually two thousand times harder to scratch |  | | Journal (issue) | | Abduriyim A.J.A. (Bram) Janse Nathan Renfro Tokyo, Japan Perth, Australia Carlsbad, California Timothy...spinel from Madagascar ⢠Sphalerite in topaz ⢠Tourmaline termination ⢠Quarterly crystal: Axinite in quartz...semitransparent, blue to pinkish blue sapphire crystals and corundum-bearing rocks at Sutara, in the Jewish Autonomous...author Dr. Delphine Bruyère reports on a new occurrence of the rare gem grandidierite in southern Madagascar...intensities, and patterns (and in some cases the occurrence of persistent phosphorescence among HPHT synthetics) |  | Voudouris, Panagiotis, Mavrogonatos, Constantinos, Graham, Ian, Giuliani, Gaston, Tarantola, Alexandre, Melfos, Vasilios, Karampelas, Stefanos, Katerinopoulos, Athanasios, Magganas, Andreas (2019) Gemstones of Greece: Geology and Crystallizing Environments. Minerals, 9 (8) 461 doi:10.3390/min9080461 | Journal (article/letter/editorial) | | its possible exploitation. Keywords: gemstones; corundum; beryl; jadeitite; garnet; quartz varieties; Greece...2 of 29 ruby (red-colored corundum) and sapphire (blue-colored corundum), emerald and other gem forms...grossular garnet), âparaiba-typeâ tourmaline (copper-colored âneonâ-blue tourmaline), topaz and jadeite-âjadeâ... among others, amber, silica gems, feldspar, tourmaline, spinel, garnets, zircon etc. It is not the mineral...epidote, actinolite, hematite, muscovite, rutile, tourmaline and pyrite. Host lithologies are ortho- and paragneisses |  | | Journal (article/letter/editorial) | | Isotopic Composition of the Mineral-Forming Fluids of Corundum-Bearing Metasomatic Rocks at the Khitoostrov and...extensive data on the oxygen isotopic composition of corundum, with the most comprehensive review published...isotopic criterion to distinguish between gem-quality corundum samples from genetically distinct deposits and...fluids. Information of the isotopic composition of corundum in Russia is still extremely scarce [2, 3], and...from isotopic data) was proposed in [5]. Major corundum deposits and occurrences that may be of any interest |  | | Book | | pink diamonds. Emerald, alexandrite, garnet, and tourmaline are all significantly present. New discoveries...interest. Rare and unusual garnet and chrome tourmaline are widely identified with the region. ( continuedon...73-carat tsavorite garnet, and a 22.69-carat chrome tourmaline. Courtesy of the 'Irelawney Collection of the...Chapter 7. Tourmaline of East Africa Elbaite Tourmaline from Tanzania 96 Red Dravite Tourmaline from the...Narok District, Kenya 99 Uvite-Dravite Chrome Tourmaline 99 Chapter 8. Prase Opal from Haneti Hill, Tanzania |  | | Journal (article/letter/editorial) | | Petrologiya, 2007, Vol. 15, No. 2, pp. 160â177. Corundum-Bearing Metasomatic Rocks in the Central Pamirs...widespread occurrences of corundum mineralization, sometimes with gem-quality corundum. These occurrences are...crystalline schists. The calcite marbles contain corundum together with muscovite, scapolite, and biotite;...biotite; the dolomite marbles contain corundum in association with biotite; and the schists bear this mineral...chlorite. All these rocks additionally contain tourmaline, apatite, rutile, and pyrite. The biotite is |  | | Book | | India Private Limited, New Delhi Prentice-Hall of Japan, Inc., Tokyo Prentice-Hall of Southeast Asia Pte...impurities, which act as pigments. For instance, pure corundum is colorless, but with a trace of iron oxide it...fluorite apatite 2 CON feldspar . quartz topaz corundum diamond A fourth test is what is known as... IU Color Key To Minerals OPAQUE COLORS CORUNDUM Black Luster: AUGITE Luster: nonmetallic,...brown to reddish. Fracture: uneven, brittle. TOURMALINE Luster: glassy. Hardness: 7-7.5. Streak: colorless |  | | Journal (article/letter/editorial) | | Belt contains numerous primary deposits of gem-corundum Ĺ˝i.e., ruby and sapphire.. The ruby deposits in...their margins. Field relationships reveal that the corundum-bearing rocks are genetically related to the ultrabasic...primary deposits of rubies Ĺ˝and of subgem red corundum. formed only under granulite facies conditions...concerning the geological contexts of primary gem-corundum deposits Ĺ˝i.e., ruby and sapphire. still remains...Fax: q33-561-558250 because: Ĺ˝1. most of the gem-corundum deposits are secondary. For example, blue sapphire |  | | Book (volume) | | Idaho; rectangular step cut purplish pink elbaite tourmaline (30.89 ct), Maine; round brilliant red-orange...1-800-234-5308 + IDE DS AED 3) June Culp Zeitner, of Rapid City, South Dakota, for her lifelong devotion to the... George F. Kunz, of Tiffany & Company, New York City, whose famous Gems and Precious Stones ofNorth America...South Dakota School of Mines and âTechnology, Rapid City, SD; John R. Fuhrbach, Amarillo, TX; Lawrence A...Co., Castro Valley, CA; June Culp Zeitner, Rapid City, SD. [also wish to call special attention to the |  | | Report (issue) | | Mineralogy and Geology of the \Vkgnerite Occurrence co Santa Fe Mountain, Front Range, Cobrado GEOLOGICAL...Precambrian gneiss; this is the first recorded occurrence of wagnerite in the United States UNITED STATES...title: Mineralogy and geology of the wagnerite occurrence on Santa Fe Mountain, Front Range, Colorado................................................ Occurrence.................................................................................. 12, 13 15. Corundum containing numerous needles of sillimanite... |  | | Book | | such as quartz and feldspar, are widespread in occurrence. Others, such as platinum and diamond, are limited...89 Bladed-flat elongated crystals. Ichinokaiva, Japan. D X 0.66 BARITE ("DESERT ROSES") Rosette Sh...is an important aid to understanding mineral occurrence. Examples of such groupings are copper, lead...workings, discovered around the ancient Middle Eastern city of Ur in southern Mesopotamia, were operated about...nose-cone tips of guided missiles (see synthetic corundum). Quartz crystals are produced artificially to |  | | Book | | second chapter, dealing with the genesis and occurrence of gem minerals, is followed by chapters on the...17 Ions and Chemical Bonding 20 2 Origin and Occurrence of Gemstones ............... . Gems from Solution...crystal and amethyst) is silicon dioxide, Si02, and corundum (ruby and sapphire) is aluminum oxide, Al203....although they are like minerals in chemistry and occurrence. In a rigorous classification such substances...twentieth century a process was developed by which corundum (ruby and sapphire) and spinel were grown large |  | | Book | | System of mineral classification 8 Origin and occurrence of minerals 8 Associated minerals 11 Properties...Lastly, data on the genesis, associated minerals, occurrence and application are included. The tabulated section...the minerals in this book as well. Origin and occurrence of minerals In order to gain some knowledge of...process of a direct separation of minerals, such as tourmaline, topaz and wolframite from hot gases and vapour...certain mineral deposit or rock, and eliminate the occurrence of some others. Examples of associated minerals |
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