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Name: Perhamite RRUFF ID: R110142 Ideal Chemistry: Ca3Al7.7Si3P4O23.5(OH)14.1·8H2O Locality: Emmons quarry, Uncle Tom Mountain, Greenwood, Oxford County, Maine, USA Source: Donald Doell [view label] Owner: RRUFF Description: Parallel aggregates of tan colored hexagonal plates Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
Mineral Group: [ Perhamite (2) ] |
RAMAN SPECTRUM | ||||||||||||
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BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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POWDER DIFFRACTION | |||||||
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RRUFF ID: | R110142.9 | ||||||
Sample Description: | Single crystal, powder profile is calculated | ||||||
Cell Refinement Output: |
a: 6.985(2)Å b: 6.985(2)Å c: 20.162(8)Å alpha: 90° beta: 90° gamma: 120° Volume: 851.9(2)Å3 Crystal System: hexagonal |
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REFERENCES for Perhamite | |
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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, Appleman D E (1977) Perhamite, a new calcium aluminum silico-phosphate mineral, and a re-examination of viséite, Mineralogical Magazine, 41, 437-442 [view file] |
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Fleischer M, Pabst A, White J S (1978) New mineral names, American Mineralogist, 63, 793-796 [view file] |
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Locock A J, Ercit T S, Kjellman J, Piilonen C (2006) New mineral names, American Mineralogist, 91, 1945-1954 [view file] |
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Mills S, Mumme G, Grey I, Bordet P (2006) The crystal structure of perhamite, Mineralogical Magazine, 70, 201-209 [view file] |
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Ercit T S, Piilonen P C, Rowe R (2007) New mineral names, American Mineralogist, 92, 1539-1542 [view file] |
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