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Name: Poldervaartite RRUFF ID: R080080 Ideal Chemistry: Ca(Ca,Mn)(SiO3OH)(OH) Locality: Wessels mine, Hotazel, Kalahari manganese field, Cape Province, South Africa Source: William W. Pinch [view label] Owner: RRUFF Description: Colorless prismatic crystals Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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POWDER DIFFRACTION | |||||||
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RRUFF ID: | R080080.9 | ||||||
Sample Description: | Single crystal, powder profile is calculated | ||||||
Cell Refinement Output: |
a: 9.425(1)Å b: 9.161(1)Å c: 10.584(1)Å alpha: 90° beta: 90° gamma: 90° Volume: 913.8(3)Å3 Crystal System: orthorhombic |
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REFERENCES for Poldervaartite | |
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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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Dai Y S, Harlow G E, McGhie A R (1993) Poldervaartite, Ca(Ca0.5Mn0.5)(SiO3OH)(OH), a new acid nesosilicate from the Kalahari manganese field, South Africa: Crystal structure and description, American Mineralogist, 78, 1082-1087 [view file] |
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