Gedrite R050339

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Record 302 of 552  

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) ]
RRUFF ID: R050339.2
Sample Description: Microprobe Fragment
Measured Chemistry: (◻0.61Na0.39)(Mg4.55Fe2+1.40Al0.91Ti0.07Ca0.07)Σ7(Si6.56Al1.44)Σ8O22(OH)2
Sample Description: Unoriented sample

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RRUFF ID: R050339
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R050339.1
Instrument settings: SensIR Durascope on a Nicolet Magna 860 FTIR
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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
  File Type Information Close
Calculated diffraction file.

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Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

  File Type Information Close
Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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REFERENCES for Gedrite

American Mineralogist Crystal Structure Database Record: [view record]

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]

Dufrénoy A (1836) Description de la gédrite, nouvelle espèce minérale, Annales des Mines, 10, 582-584   [view file]

Seki Y, Yamasaki M (1957) Aluminian ferroanthophyllite from the Kitakami Mountainland, Northeastern Japan, American Mineralogist, 42, 506-520

Milton D J, Ito J (1961) Gedrite from Oxford County, Maine, American Mineralogist, 46, 734-740

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]

Leake B E (1978) Nomenclature of amphiboles, American Mineralogist, 63, 1023-1052   [view file]

Spear F S (1982) Phase equilibria of amphibolites from the post pond volcanics, Mt. cube quadrangle, Vermont, Journal of Petrology, 23, 383-426

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]

Peck W H, Valley J W (2000) Genesis of cordierite—gedrite gneisses, Central Metasedimentary Belt boundary thrust zone, Grenville Province, Ontario, Canada, The Canadian Mineralogist, 38, 511-524   [view file]

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 Association’s 1997 recommendations, The Canadian Mineralogist, 41, 1355-1362   [view file]

Hinchey A M, Carr S D (2007) Protolith composition of cordierite—gedrite basement rocks and garnet amphibolite of the Bearpaw Lake area of the Thor—Odin dome, Monashee Complex, British Columbia, Canada, The Canadian Mineralogist, 45, 607-629   [view file]

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]

Tribaudino M, Hovis G L, Almer C, Leaman A (2022) Thermal expansion of minerals in the amphibole supergroup, American Mineralogist, 107, 1302-1312