Important Update News
The RRUFF Project is being updated to improve its interface and content. The beta version of the update is accessible to the public at RRUFF.net. New data is only being added to the beta site. Please note that it is in development, and some components are not functional. Existing RRUFF.info links will resolve to the new site after RRUFF.net is officially released.
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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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