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Name: Osumilite RRUFF ID: R060385 Ideal Chemistry: KFe2(Al5Si10)O30 Locality: Funtanafigu Quarry, Monte Arci, near Oristano, Sardinia Source: Michael Scott S100097 [view label] Owner: RRUFF Description: Black tabular distorted hexagonal crystals associated with colorless tridymite Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
Mineral Group: [ Milarite (18) ] |
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: | R060385.9 | ||||||
Sample Description: | Single crystal, powder profile is calculated | ||||||
Cell Refinement Output: |
a: 10.141(1)Å b: 10.141(1)Å c: 14.303(1)Å alpha: 90° beta: 90° gamma: 120° Volume: 1273.8(3)Å3 Crystal System: hexagonal |
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REFERENCES for Osumilite | |
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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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Miyashiro A (1953) Osumilite, a new mineral, and cordierite in volcanic rocks, Proceedings of the Japan Academy, 29, 321-323 [view file] |
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Fleischer M (1954) New mineral names, American Mineralogist, 39, 690-692 [view file] |
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Miyashiro A (1956) Osumilite, a new silicate mineral, and its crystal structure, American Mineralogist, 41, 104-116 [view file] |
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Chinner G A, Dixon P D (1973) Irish osumilite, Mineralogical Magazine, 39, 189-192 [view file] |
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Hesse K F, Seifert F (1982) Site occupancy refinement of osumilite, Zeitschrift für Kristallographie, 160, 179-182 [view file] |
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Armbruster T, Oberhänsli R (1988) Crystal chemistry of double-ring silicates: structural, chemical, and optical variation in osumilites, American Mineralogist, 73, 585-594 [view file] |
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Seryotkin Y V, Sokol E V, Bakakin V V, Likhacheva A Y (2008) Pyrometamorphic osumilite: occurrence, paragenesis, and crystal structure as compared to cordierite, European Journal of Mineralogy, 20, 191-198 |
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Gagné O C, Hawthorne F C (2016) Chemographic exploration of the milarite-type structure, The Canadian Mineralogist, 54, 1229-1247 |
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