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Name: Simpsonite RRUFF ID: R050629 Ideal Chemistry: Al4Ta3O13(OH) Locality: Equador, Rio Grande do Norte, Brazil Source: Gemological Center Owner: RRUFF Description: Yellow fragment Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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Quick search: [ All Simpsonite samples (2) ] |
CHEMISTRY | ||||||||
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RAMAN SPECTRUM | ||||||||||||
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INFRARED SPECTRUM (Attenuated Total Reflectance) | |||||||||||||
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POWDER DIFFRACTION | ||||||||
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RRUFF ID: | R050629.1 | |||||||
Sample Description: | Powder | |||||||
Cell Refinement Output: |
a: 7.3838(3)Å b: 7.3838(3)Å c: 4.5146(2)Å alpha: 90.° beta: 90.° gamma: 120.° Volume: 213.16(1)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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