 | | Journal (article/letter/editorial) | | from Canada Downloaded by [Florida International University] at 19:52 23 August 2013 C anada is home...amethyst to zircon, from emerald to sapphire, Canada has it all. Yet, for most of its history, Canada has been...species have been found at one time or another in Canada (fig. 1). Some gem localities, such as those for...aquamarine in British Columbia are but a few examples. Direct exploration for colored gemstones by mining companies...S. WILSON PO Box 352 Kingston, Ontario K7L 4W2 Canada brad@alpinegems.ca 96*2: 405,9(3: The |  | Mao, Mao, Rukhlov, Alexei S., Rowins, Stephen M., Spence, Jody, Coogan, Laurence A. (2016) Apatite Trace Element Compositions: A Robust New Tool for Mineral Exploration. Economic Geology, 111 (5) 1187-1222 doi:10.2113/econgeo.111.5.1187 | Journal (article/letter/editorial) | | Jody Spence,1 and Laurence A. Coogan1 1 School 2 British of Earth and Ocean Sciences, University of Victoria...3800 Finnerty Road, Victoria, British Columbia, Canada V8P 5C2 Columbia Geological Survey, Ministry of...Mines, 1810 Blanshard Street, Victoria, British Columbia, Canada V8W 9N3 Abstract Apatites from the major...mineral deposits (30 localities, mostly in British Columbia, Canada) together with apatites from carbonatites...Kiruna-type iron oxide-apatite (IOA) deposits in Canada, China, and Mexico typically have large negative |  | | Journal (issue) | | of Sample A is sem i-transp arent and of darker blu e colour than the other two types. It contains needle-shaped...hollow or filled with glass (Figure 9). The med ium blu e variety of glass B shows simila r but finer needl...not d etected Taiwanese blu e cha lcedo ny N :" Blue op al Taiwanese blu e cha lcedony 8 0.Q3 ...The test report of Taiwan blue chalcedony. Taiwan Mining, 21(3/4), 17-20 (in Chinese) Chen C.J., and Zen...properties of Taiwan blue (purple) chalcedony. Taiwan Mining Bureau (in Chinese) Hammer, V., Stefan, J., and |  | | Journal (issue) | | Switzerland A. A. Levinson Calgary, Alberta, Canada James E. Shigley Carlsbad, California C. S. Hurlbut...F. C. Hawthorne at the University of Manitoba, Canada, performed electron microprobe analyses on (1)...intersecting in three directions at 60° to one another, zircon crystals surrounded by stress fractures, and well-defined...six sections each. As shown in figure 3, this division changes a four-sided tetrahedron to a 24-sided...diamonds from the Ekati mine, Northwest Territories, Canada. Faceted diamonds from Canada’s first diamond mine |  | | Report (issue) | | of Energy, Mines and Low Carbon Innovation British Columbia Geological Survey Paper 2023-01 Ministry... Competitiveness, and Authorizations Division British Columbia Geological Survey Recommended citation...Schiarizza, P., and Friedman, R.M., 2023. U-Pb zircon dates for rhyolite and sandstone of Cadwallader...area, south-central British Columbia. In: Geological Fieldwork 2022, British Columbia Ministry of Energy...Energy, Mines and Low Carbon Innovation, British Columbia Geological Survey Paper 2023-01, pp. 65-84. Front |  | | Journal (issue) | | nephrite jade in Europe. Shortly after discovery, mining operations commenced and a substantial quantity...jade was produced (Traube, 1885). Subsequently mining operations were disrupted throughout the First...of recrystallization was probably rapid. 451 Mining and processing Extraction of nephrite jade from...essentially carried out in conjunction with serpentinite mining. Once the individual nephrite jade bodies were...Europe. Volume 3: Central Europe. The Institution of Mining and Metallurgy and the Mineralogical Society, London |  | | Journal (issue) | | Switzerland A. A. Levinson Calgary, Alberta, Canada Christopher P. Smith Lucerne, Switzerland C....snapshot of a decade—and a profound one at that—from mining and localities to treatments and synthetics to...of Sakha), with exciting discoveries in northern Canada. Cultured pearls from French Polynesia, Australia...Nigeria and Brazil. Diamond was mined in northern Canada for the first time. Names such as Tunduru, Ilakaka...scapolite, sphene, spodumene, sugilite, turquoise, and zircon), as well as for regions important for cultured |  | | Journal (issue) | | the supply chain. The development of large-scale mining operations for colored gems has been in the news...of the decade forced major cutbacks in diamond mining and prompted industry banks to re-evaluate long-accepted...still have not fully played out. Colored stone mining and cultured pearl farming also experienced severe...before the economic crisis forced major changes in mining operations, the DTC’s share of the rough market...initiatives. The BEE laws required all diamond mining companies, including De Beers, to have a minimum |
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