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Name: Offretite RRUFF ID: R060767 Ideal Chemistry: KCaMg(Si13Al5)O36·15H2O Locality: Vinarice, Kladno, Czech Republic Source: Michael Scott S101247 [view label] Owner: RRUFF Description: Colorless elongated hexagonal prisms Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
Mineral Group: [ Not in a structural group (133) ] |
CHEMISTRY | ||||||||||
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RAMAN SPECTRUM | ||||||||||||
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BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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POWDER DIFFRACTION | |||||||
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RRUFF ID: | R060767.9 | ||||||
Sample Description: | Single crystal, powder profile is calculated | ||||||
Cell Refinement Output: |
a: 13.290(6)Å b: 13.290(6)Å c: 7.572(2)Å alpha: 90° beta: 90° gamma: 120° Volume: 1158.2(6)Å3 Crystal System: hexagonal |
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REFERENCES for Offretite | |
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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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Gonnard F (1890) Sur l'offrétite, espèce minérale nouvelle, Comptes Rendus de l'Académie des Sciences de Paris, 111, 1002-1003 [view file] |
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Fleischer M (1957) New mineral names, American Mineralogist, 42, 440-444 [view file] |
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Fleischer M (1967) New mineral names, American Mineralogist, 52, 1579-1589 [view file] |
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Sheppard R A, Gude A J (1969) Chemical composition and physical properties of the related zeolites offretite and erionite, American Mineralogist, 54, 875-886 [view file] |
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Coombs D S, Alberti A, Armbruster T, Artioli G, Colella C, Galli E, Grice J D, Liebau F, Mandarino J A, Minato H, Nickel E H, Passaglia E, Peacor D R, Quartieri S, Rinaldi R, Ross M, Sheppard R A, Tillmanns E, Vezzalini G, (1997) Recommended nomenclature for zeolite minerals: report of the Subcommittee on Zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names, The Canadian Mineralogist, 35, 1571-1606 [view file] |
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Gualtieri A, Artioli G, Passaglia E, Bigi S, Viani A, Hanson J C (1998) Crystal structure-crystal chemistry relationships in the zeolites erionite and offretite, American Mineralogist, 83, 590-606 [view file] |
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Passaglia E, Artioli G, Gualtieri A (1998) Crystal chemistry of the zeolites erionite and offretite, American Mineralogist, 83, 577-589 [view file] |
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Saini-Eidukat B, Triplett J W (2014) Erionite and offretite from the Killdeer Mountains, Dunn County, North Dakota, U.S.A., American Mineralogist, 99, 8-15 |
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