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Name: Asisite RRUFF ID: R070635 Ideal Chemistry: Pb7SiO8Cl2 Locality: Kombat mine, Kombat, Grootfontein District, Otjozondjupa Region, Namibia Source: Ausrox/Rob Sielicki [view label] Owner: RRUFF Description: Reddish-orange crystals with pronounced cleavage Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
Mineral Group: [ Asisite (1) ] |
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: | R070635.9 | ||||||
Sample Description: | Single crystal, powder profile is calculated | ||||||
Cell Refinement Output: |
a: 3.9498(4)Å b: 3.9498(4)Å c: 22.676(5)Å alpha: 90° beta: 90° gamma: 90° Volume: 353.8(1)Å3 Crystal System: tetragonal |
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REFERENCES for Asisite | |
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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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Rouse R C, Peacor D R, Dunn P J, Criddle A J, Stanley C J, Innes J (1988) Asisite, a silicon-bearing lead oxychloride from the Kombat mine, South West Africa (Namibia), American Mineralogist, 73, 643-650 [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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Welch M D (2004) Pb-Si ordering in sheet-oxychloride minerals: the super-structure of asisite, nominally Pb7SiO8Cl2, Mineralogical Magazine, 68, 247-254 [view file] |
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Jambor J L, Roberts A C (2005) New mineral names, American Mineralogist, 90, 271-275 [view file] |
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