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Name: Crandallite RRUFF ID: R140429 Ideal Chemistry: CaAl3(PO4)(PO3OH)(OH)6 Locality: Savannah Pit, Tyrone mine, Grant County, New Mexico, USA Source: Ron Gibbs [view label] Owner: RRUFF Description: Colorless, hexagonal platy crystals Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
Mineral Groups: [ alunite (46) ] [ crandallite (14) ] |
RAMAN SPECTRUM | ||||||||||||
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BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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POWDER DIFFRACTION | |||||||
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RRUFF ID: | R140429.9 | ||||||
Sample Description: | Single crystal, powder profile is calculated | ||||||
Cell Refinement Output: |
a: 6.978(4)Å b: 6.978(4)Å c: 16.186(9)Å alpha: 90° beta: 90° gamma: 120° Volume: 682.5(1)Å3 Crystal System: hexagonal |
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REFERENCES for Crandallite | |
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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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Gordon S G (1917) New minerals, American Mineralogist, 2, 41-42 [view file] |
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Loughlin G F, Schaller W T (1917) Crandallite, a new mineral, American Journal of Science, 43, 69-74 [view file] |
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van Wambeke L (1971) The problem of cation deficiencies in some phosphates due to alteration processes, American Mineralogist, 56, 1366-1384 [view file] |
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Blount A M (1974) The crystal structure of crandallite, American Mineralogist, 59, 41-47 [view file] |
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Bermanec V, Šćavničar, Zebec V (1995) Childrenite and crandallite from the Stari Trg mine (Trepča), Kosovo: new data, Mineralogy and Petrology, 52, 197-208 |
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Jambor J L (1999) Nomenclature of the alunite supergroup, The Canadian Mineralogist, 37, 1323-1341 [view file] |
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Bayliss P, Kolitsch U, Nickel E H, Pring A (2010) Alunite supergroup: recommended nomenclature, Mineralogical Magazine, 74, 919-927 [view file] |
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Rossi M, Rizzi R, Vergara A, Capitelli F, Altomare A, Bellatreccia F, Saviano M, Ghiara R M (2017) Compositional variation of turquoise-group minerals from the historical collection of the Real Museo Mineralogico of the University of Naples, Mineralogical Magazine, 81, 1405-1429 |
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