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Name: Johninnesite RRUFF ID: R060249 Ideal Chemistry: Na2Mn2+9Mg7(AsO4)2(Si6O17)2(OH)8 Locality: Kombat mine, Kombat, Grootfontein District, Otjozondjupa Region, Namibia Source: William W. Pinch [view label] Owner: RRUFF Description: Colorless to tan aggregate of bladed crystals associated with rhodonite Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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: | R060249.9 | ||||||
Sample Description: | Single crystal, powder profile is calculated | ||||||
Cell Refinement Output: |
a: 10.463(3)Å b: 11.037(4)Å c: 9.624(2)Å alpha: 107.10(1)° beta: 81.11(1)° gamma: 111.81(1)° Volume: 984.9(4)Å3 Crystal System: triclinic |
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REFERENCES for Johninnesite | |
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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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Dunn P J, Peacor D R, Su S C, Nelen J A, von Knorring O (1986) Johninnesite, a new sodium manganese arsenosilicate from the Kombat Mine, Namibia, Mineralogical Magazine, 50, 667-670 [view file] |
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Jambor J L, Bladh K W, Ercit T S, Grice J D, Grew E S (1988) New mineral names, American Mineralogist, 73, 927-935 [view file] |
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Dunn P J (1991) Rare minerals of the Kombat mine, The Mineralogical Record, 22, 421-425 |
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Grice J D, Dunn P J (1994) Johninnesite: Crystal-structure determination and its relationship to other arsenosilicates, American Mineralogist, 79, 991-995 [view file] |
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