 | | Report (issue) | | Energy, Mines and Resources Canada E:nergie, Mines et Ressourees Canada Canada THE ENERGY OF OUR RESOURCES...POWER OF OUR IDEAS COVER Left: Amethyst - Thunder Bay, Ontario. Specimen measures 4.5 cm across the base...no. 17206. GSC 204971-1 Geological Survey of Canada Miscellaneous Report 49 ROCKS AND MINERALS FOR... © Minister of Supply and Services Canada 1991 Available in Canada through authorized bookstore agents...bookstores or by mail from Canada Communication Group - Publishing Ottawa, Canada KIA OS9 and from. Geological |  | | Book (volume) | | cushion cut rhodochrosite (25.56 ct), Sweet Home Mine, Colorado; colorless scheelite (19.66 ct), Kern... His works are known to almost every collector, gem cutter, gemologist, and mineralogist. His writings...newer events to bring the history of North American gem mining up to date. Here, then, is the latest, most...promising diamond fields being vigorously explored in Canada and the United States. Experts agree that in several...diamond-bearing kimberlite bodies, most likely in Canada. Systematic large-scale mining of sapphire-bearing |  | | Report (volume) | | Devonian development diagram Direcci6n Dissertation district distribution division Doctoral, Document Doctoral...Topog.------- Topographic, etc. Tp.__-.-__-._ Township BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1946...Brunswick. Agricultural and Industrial Progress in Canada vols. 25, nos. 1, 3, 4, 6-10, 12; 26, nos. 3, 5...Berkeley, Calif. Canada Bureau of Mines Memorandum Series 90, 91. Ottawa, Canada. Canada Department of Mines...Reports, years ending 3/31/45 and 3/31/46. Ottawa, Canada. Canada'Geological Survey: Bulletin nos. 3-8; Economic |  | | Book (edition) | | occurrences in the United States (nearly all localities), Canada, Germany, Norway, Sweden, Uganda, Tanganyika, Nyasaland...Description of Carbonatites of the World United States Canada Brazil Greenland, Europe, and the U.S.S.R. Africa...Geological Survey and H. von Eckermann (1948A) : Ontario Department of Mines and G. E. Parsons (1961)...Geological Survey and H. von Eckermann (1948A) : Ontario Department of Mines and G. E. Parsons (1961) :...Figure 12-9 : Ontario Department of Mines and G. E. Parsons (1961) Figure 12-10 : Ontario Department of |  | | Book | | ........................ Tilly Foster magnetite mine near Brewster, Putnam County......................of Jefferson and St. Lawrence Counties.. Sterling mine, near Antwerp, Jefferson County............................................ Hematite mines near Ontario, Wayne County.................. Lead-Zinc Mines...................................... Rossie lead mine, St. Lawrence County.................................. Balmat-Edwards zinc district, St. Lawrence County......... Garnet mine of Gore Mountain, Warren | | | Book | | farm above Keuka Lake in New York's Finger Lakes district. After attending Penn Yan Academy in nearby Penn......................... . Tilly Foster magnetite mine near Brewster, Putnam County .....................Jefferson and St. Lawrence Counties .. Sterling mine, near Antwerp, Jefferson County ......... . Clinton.......................... . Hematite mines near Ontario, Wayne County ........... • Lead-Zinc Mines . .... . . . . . . . . . . . . . . . . . Rossie lead mine, St. Lawrence County . . . . . . . . . . . . . |  | | Journal (issue) | | Journal of Gemmology The Gemmological Association and Gem Testing Laboratory of Great Britain President E...BSc., FCA, DCA The Gemmological Association and Gem Testing Laboratory of Great Britain 27 Greville Street...yield more gems from different localities, thirteen gem species are recorded here as stars or cat'seyes....materials science is of growing influence in the gem market and if it is not laser development or space...gemmological. R.R.H. © Gemmological Association and Gem Testing Laboratory of Great Britain ISSN: 1355-4565 |  | | Journal (issue) | | Change William E. Boyajian FEATURE ARTICLES 292 Gem Localities of the 1990s James E. Shigley, Dona M...Includes a wall chart and comprehensive tables of gem localities. 336 Gemstone Enhancement and Detection...pressing need to identify them. 360 Synthetic Gem Materials and Simulants in the 1990s John I. Koivula...Analyzes an entire decade of activity in the synthetic gem industry, as well as the introduction of new simulants... Editors, Gem Trade Lab Notes Thomas M. Moses Ilene Reinitz Shane F. McClure Editors, Gem News Mary L |
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