 | | Book (volume) | | greater variety of minerals are found in Oxford County, alone, than anywhere else on Earth of comparable...than Maine's, as well. An area smaller than Oxford County in Murmansk Ob last, Kola Peninsula, Russia, has...clear to slightly blue topazes. However, San Diego County, California, is arguably the most important gem-pegmatite...Pennsylvania Amherst College Library, Amherst, Massachusetts Gail and Victor Blomquist library, Dresden,...Museum Archives, Harvard University, Cambridge, Massachusetts Richard P. Hauck library, Bloomfield, New Jersey |  | | Book (volume) | | Duane L. Leavitt The Bennett Pegmatite, Oxford County, Maine . ........................................of Geology at Smith College in Northampton, Massachusetts. He began teaching there in 1931 and he retired...permanent photographic exhibits in the northeastern USA. The Shaubs have been active in ornithological research...tourmalinebearing Himalaya pegmatite at Mesa Grande, San Diego County, California. Most recently, Gene was gratified...Maine's treasure chest; Gems and minerals of Oxford County, second edition: Quicksilver Publications, West |  | | Book | | Department of Geology University of California, Davis, CA USA DAVID T. WRIGHT Department of Geology University...Estuarine Environment, Willapa Bay, Washington, USA: Palaeogeographic Implications and Estuarine Evolution...Heavy-Mineral Sands of the Atlantic and Gulf Coastal Plains, USA. . . . . . . . . . . Fredric L. Pirkle, William A...G.L. BYNUM 761 Towhee Court, Fremont, CA 94539, USA (U.S. Geological Survey, retired) J. CASCALHO Centro... UC Davis, One Shields Avenue, Davis, CA 95616, USA G. DURN University of Zagreb, Faculty of Mining, |  | | Book (edition) | | 1 National Aeronautics and Space Administration, USA 2.5.2 Roscosmos State Corporation for Space Activities...jewelry Occurs as hornblende, tremolite of igneous or metamorphic origin Hornblende as semiprecious gems...purity ranging between 22 carat (India) and 14 carat (USA) for common uses. The gold has versatile applications...feldspar and ferromagnesian minerals (biotite, hornblende, and pyroxene) Intrusive igneous rock intermediate...of plagioclase feldspar with quartz, biotite, hornblende, augite 6 enstatite Felsic extrusive rock with |
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