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Name: Ephesite RRUFF ID: R060848 Ideal Chemistry: NaLiAl2(Si2Al2)O10(OH)2 Locality: Postmaasburg, South Africa Source: Michael Scott S100913 [view label] Owner: RRUFF Description: Pale pink hexagonal mica books, polytype 2M1 Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
| Mineral Group: [ mica (50) ] | ||
| 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: | R060848.1 | |||||||
| Sample Description: | Powder | |||||||
| Cell Refinement Output: |
a: 5.1261(8)Å b: 8.880(2)Å c: 19.3124(7)Å alpha: 89.946(6)° beta: 95.116(8)° gamma: 89.96(2)° Volume: 875.6(1)Å3 Crystal System: triclinic |
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| REFERENCES for Ephesite | |
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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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Smith J L (1851) Memoir on Emery - Second Part - On the minerals associated with emery: corundum, hydrargillite, diaspore, zinc spinel, pholerite, ephesite (a new species), emerylite (a new species), muscovite, chloritoid (a new variety), black tourmaline, chlorite, magnetic oxyd of iron, oligiste iron, hydrated oxyd of iron, iron pyrites, rutile, ilmenite and titaniferous iron, American Journal of Science, 11, 53-66 [view file] |
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Schaller W T, Carron M K, Fleischer M (1967) Ephesite, Na(LiAl2)(Al2Si2)O10(OH)2, a trioctahedral member of the margarite group, and related brittle micas, American Mineralogist, 52, 1689-1696 [view file] |
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Slade P G, Schultz P K, Dean C (1987) Refinement of the ephesite structure in C1 symmetry, Neues Jahrbuch für Mineralogie, Monatshefte, 1987, 275-287 |
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Rieder M, Cavazzini G, DYakonov Y S, Frank-Kamenetskii V A, Gottardt G, Guggenheim S, Koval P V, Muller G, Neiva A M R, Radoslovich E W, Robert J L, Sassi F P, Takeda H, Weiss Z, Wones D R (1998) Nomenclature of the micas, The Canadian Mineralogist, 36, 905-912 [view file] |
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