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The RRUFF Project (rruff.info) 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.
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Name: Gedrite RRUFF ID: R050339 Ideal Chemistry: ◻Mg2(Mg3Al2)(Si6Al2)O22(OH)2 Locality: Bamble, Telemark, Norway Source: California Institute of Technology W-203 Owner: RRUFF Description: Dark gray cleavage fragment Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
Mineral Group: [ amphibole (107) ] |
CHEMISTRY | ||||||||
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RAMAN SPECTRUM | ||||||||||||
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BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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INFRARED SPECTRUM (Attenuated Total Reflectance) | |||||||||||||
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POWDER DIFFRACTION | ||||||||
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RRUFF ID: | R050339.1 | |||||||
Sample Description: | Powder | |||||||
Cell Refinement Output: |
a: 18.5639(9)Å b: 17.8341(8)Å c: 5.2750(3)Å alpha: 90.° beta: 90.° gamma: 90.° Volume: 1746.4(1)Å3 Crystal System: orthorhombic |
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REFERENCES for Gedrite | |
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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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Dufrénoy A (1836) Description de la gédrite, nouvelle espèce minérale, Annales des Mines, 10, 582-584 [view file] |
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Seki Y, Yamasaki M (1957) Aluminian ferroanthophyllite from the Kitakami Mountainland, Northeastern Japan, American Mineralogist, 42, 506-520 |
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Milton D J, Ito J (1961) Gedrite from Oxford County, Maine, American Mineralogist, 46, 734-740 |
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Kamineni D C, Wong A S (1973) Gedrite from the Yellowknife-Beaulieu region, District of Mackenzie, N.W.T., The Canadian Mineralogist, 11, 1012-1015 [view file] |
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Leake B E (1978) Nomenclature of amphiboles, American Mineralogist, 63, 1023-1052 [view file] |
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Spear F S (1982) Phase equilibria of amphibolites from the post pond volcanics, Mt. cube quadrangle, Vermont, Journal of Petrology, 23, 383-426 |
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Leake B E, Woolley A R, Arps C E S, Birch W D, Gilbert M C, Grice J D, Hawthorne F C, Kato A, Kisch H J, Krivovichev V G, Linthout K, Laird J, Mandarino J A, Maresch W V, Nickel E H, Rock N M S, Schumacher J C, Smith D C, Stephenson N C N, Ungaretti L, Whittaker E J W, Youzhi G (1997) Nomenclature of amphiboles: report of the Subcommittee on Amphiboles of the International Mineralogical Association, Commission on New Minerals and Mineral Names, The Canadian Mineralogist, 35, 219-246 [view file] |
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Peck W H, Valley J W (2000) Genesis of cordieritegedrite gneisses, Central Metasedimentary Belt boundary thrust zone, Grenville Province, Ontario, Canada, The Canadian Mineralogist, 38, 511-524 [view file] |
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Leake B E, Woolley A R, Birch W D, Burke E A J, Ferraris G, Grice J D, Hawthorne F C, Kisch H J, Krivovichev V G, Schumacher J C, Stephenson N C N, Whittaker E J W (2003) Nomenclature of amphiboles: additions and revisions to the International Mineralogical Associations 1997 recommendations, The Canadian Mineralogist, 41, 1355-1362 [view file] |
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Hinchey A M, Carr S D (2007) Protolith composition of cordieritegedrite basement rocks and garnet amphibolite of the Bearpaw Lake area of the ThorOdin dome, Monashee Complex, British Columbia, Canada, The Canadian Mineralogist, 45, 607-629 [view file] |
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Nestola F, Pasqual D, Welch M D, Oberti R (2012) The effects of composition upon the high-pressure behaviour of amphiboles: compression of gedrite to 7 GPa and a comparison with anthophyllite and proto-amphibole, Mineralogical Magazine, 76, 987-995 [view file] |
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Tribaudino M, Hovis G L, Almer C, Leaman A (2022) Thermal expansion of minerals in the amphibole supergroup, American Mineralogist, 107, 1302-1312 |
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