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Name: Tiragalloite RRUFF ID: R130101 Ideal Chemistry: Mn2+4As5+Si3O12(OH) Locality: Molinello mine, Near Lavagna, Geona, Graveglia Valley, Italy Source: Rock Currier [view label] Owner: RRUFF Description: Orange granular filling a crack Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
RAMAN SPECTRUM | ||||||||||||
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BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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POWDER DIFFRACTION | |||||||
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RRUFF ID: | R130101.9 | ||||||
Sample Description: | Single crystal, powder profile is calculated | ||||||
Cell Refinement Output: |
a: 6.677(1)Å b: 19.957(4)Å c: 7.592(2)Å alpha: 90° beta: 95.51(1)° gamma: 90° Volume: 1006.9(3)Å3 Crystal System: monoclinic |
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REFERENCES for Tiragalloite | |
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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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Gramaccioli C M, Pilati T, Liborio G (1979) Structure of a manganese(II) arsenatotrisilicate, Mn4[AsSi3O12(OH)]: The presence of a new tetrapolyphosphate-like anion, Acta Crystallographica, B35, 2287-2291 |
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Gramaccioli C M, Griffin W L, Mottana A (1980) Tiragalloite, Mn4[AsSi3O12(OH)], a new mineral and the first example of arsenatotrisilicate, American Mineralogist, 65, 947-952 [view file] |
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Nagashima M, Armbruster T (2010) Ardennite, tiragalloite and medaite: structural control of (As5+,V5+,Si4+)O4 tetrahedra in silicates, Mineralogical Magazine, 74, 55-71 [view file] |
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