Ferro-gedrite R070531

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Record 1399 of 4216  

Name: Ferro-gedrite
RRUFF ID: R070531
Ideal Chemistry: ◻Fe2+2(Fe2+3Al2)(Si6Al2)O22(OH)2
Locality: Ludvika, Dalarna District, Kopparberg, Sweden
Source: James Shigley [view label]
Owner: RRUFF
Description: Flattened black prismatic crystals in semi-sheaflike aggregates, associated with quartz
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
Mineral Group: [ amphibole (107) ]
Quick search: [ All Ferro-gedrite samples (2) ]
RRUFF ID: R070531.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Na0.560.44)Σ=1(Fe2+1.94Mn0.05Ca0.01)Σ=2(Fe2+1.92Mg1.53Al1.52Fe3+0.02Ti0.01)Σ=5(Si5.88Al2.12)Σ=8O22(OH)2; = light phase, and the dark phase is quartz
Microprobe Data File: [ Download Excel File ]
Sample Description: Unoriented sample

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RRUFF ID: R070531
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
RRUFF ID: R070531.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 18.500(1)Å    b: 17.80(1)Å    c: 5.276(3)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 1738(3)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.

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REFERENCES for Ferro-gedrite

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]

Tilley C E (1939) Kyanite-gedrite parageneses, Geological Magazine, 76, 326-330   [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

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

Matsubara S, Kato A, Nomura M (1980) The occurence of ferro-gedrite from the Kawai Mine, Ena, Gifu Prefecture, Japan, Bulletin National Science Museum, Tokyo Series C, 6, 107-113

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]

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]

Burke E A J, Leake B E (2004) "Named amphiboles": a new category of amphiboles recognized by the International Mineralogical Association (IMA), and the proper order of prefixes to be used in amphibole names, The Canadian Mineralogist, 42, 1881-1883   [view file]

Hawthorne F C, Oberti R, Harlow G E, Maresch W V, Martin R F, Schumacher J C, Welch M D (2012) Nomenclature of the amphibole supergroup, American Mineralogist, 97, 2031-2048   [view file]