Important Update News
The RRUFF Project is being updated to improve its interface and content. The beta version of the update is accessible to the public at RRUFF.net. New data is only being added to the beta site. Please note that it is in development, and some components are not functional. Existing RRUFF.info links will resolve to the new site after RRUFF.net is officially released.
We are grateful to NASA for the funding of this effort.
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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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