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Name: Simpsonite RRUFF ID: R061059 Ideal Chemistry: Al4Ta3O13(OH) Locality: Mt. Vasin-Myl'k, Voron'ya Tundra, Russia Source: Michael Scott S100986 [view label] Owner: RRUFF Description: Subhedral off-white to pale yellowish gray crystal associated with spodumene, feldspar and quartz Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
Quick search: [ All Simpsonite samples (2) ] |
CHEMISTRY | ||||||
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RAMAN SPECTRUM | ||||||||||||
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BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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POWDER DIFFRACTION | |||||||
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RRUFF ID: | R061059.9 | ||||||
Sample Description: | Single crystal, powder profile is calculated | ||||||
Cell Refinement Output: |
a: 7.383(2)Å b: 7.383(2)Å c: 4.512(2)Å alpha: 90° beta: 90° gamma: 120° Volume: 213.2(3)Å3 Crystal System: hexagonal |
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REFERENCES for Simpsonite | |
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American Mineralogist Crystal Structure Database Record: [view record] |
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Anthony J W, Bideaux R A, Bladh K W, and Nichols M C (1990) Handbook of Mineralogy, Mineral Data Publishing, Tucson Arizona, USA, by permission of the Mineralogical Society of America. [view file] |
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Bowley H (1938) Simpsonite, Report of the Department of Mines Western Australia, 93, 88-88 [view file] |
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Taylor L E R (1939) X-ray studies of simpsonite, Journal of the Royal Society of Western Australia, 25, 93-97 [view file] |
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Foshag W F (1940) New mineral names, American Mineralogist, 25, 312-314 [view file] |
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Fleischer M (1945) New mineral names, American Mineralogist, 30, 548-550 [view file] |
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Kerr P F, Holmes R J (1945) X-ray study of the tantalum mineral simpsonite, Bulletin of the Geological Society of America, 56, 479-504 [view file] |
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Ercit T S, Černý P, Hawthorne F C (1992) The crystal chemistry of simpsonite, The Canadian Mineralogist, 30, 663-671 [view file] |
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