Kosmochlor R120015

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Record 68 of 79  

Name: Kosmochlor
RRUFF ID: R120015
Ideal Chemistry: NaCr3+Si2O6
Locality: Synthetic
Source: George Harlow
Owner: RRUFF
Description: Green fragments. Sample was synthesized by Harlow (1997) and used in the Origlieri et al (2003) study
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
Mineral Group: [ pyroxene (79) ]
CHEMISTRY 
RRUFF ID: R120015.2
Sample Description: Microprobe Fragment
Measured Chemistry: Na1.00(Cr0.99Fe3+0.01)Si2.00O6 ;after normalization to four total cations, using data of Harlow (1997).
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample; 780 nm spectrum is overwhelmed by fluorescence.
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R120015
Wavelength:
Sample Description: Unoriented sample; 780 nm spectrum is overwhelmed by fluorescence.
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
POWDER DIFFRACTION 
RRUFF ID: R120015.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 9.5720(3)Å    b: 8.7094(2)Å    c: 5.2678(2)Å
alpha: 90°    beta: 107.498(3)°    gamma: 90°   Volume: 418.84(3)Å3    Crystal System: monoclinic
  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 Kosmochlor

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]

Laspeyres H (1897) Die steinigen Gemengtheile in Meteoreisen von Toluca in Mexico. Kosmochlor, ein neues kosmisches Mineral, Zeitschrift für Krystallographie und Mineralogie, 27, 586-600   [view file]

Fleischer M (1965) New mineral names, American Mineralogist, 50, 2096-2111   [view file]

Frondel C, Klein C (1965) Ureyite, NaCrSi2O6: A new meteoritic pyroxene, Science, 149, 742-744

Fleischer M (1968) New mineral names, American Mineralogist, 53, 507-511   [view file]

Clark J R, Appleman D E, Papike J J (1969) Crystal-chemical characterization of clinopyroxenes based on eight new structure refinements, Mineralogical Society of America Special Paper, 2, 31-50   [view file]

Cameron M, Sueno S, Prewitt C T, Papike J J (1973) High-temperature crystal chemistry of acmite, diopside, hedenbergite, jadeite, spodumene, and ureyite, American Mineralogist, 58, 594-618   [view file]

Yang C M O (1984) A terrestrial source of ureyite, American Mineralogist, 69, 1180-1183   [view file]

Nickel E H, Mandarino J A (1987) Procedures involving the IMA Commission on New Minerals and Mineral Names and guidelines on mineral nomenclature, American Mineralogist, 72, 1031-1042   [view file]

Morimoto N (1988) Nomenclature of pyroxenes, Mineralogical Magazine, 52, 535-550   [view file]

Origlieri M J, Downs R T, Thompson R M, Pommier C J S, Denton M B, Harlow G E (2003) High-pressure crystal structure of kosmochlor, NaCrSi2O6, and systematics of anisotropic compression in pyroxenes, American Mineralogist, 88, 1025-1032   [view file]

Zozulya D R, Gavrilenko B V, Savchenko Y E (2003) Kosmochlor (NaCrSi2O6) from coastal sediments of Tersky coast in the White sea, Kola peninsula, Zapiski Vserossijskogo Mineralogicheskogo Obshchestva, 132, issue 3 101-108   [view file]

Boffa Ballaran T, Nestola F, Tribaudino M, Ohashi H (2009) Bulk modulus variations along the diopside-kosmochlor solid solution, European Journal of Mineralogy, 21, 591-597

Posner E S, Dera P, Downs R T, Lazarz J D, Irmen P (2014) High-pressure single-crystal X-ray diffraction study of jadeite and kosmochlor, Physics and Chemistry of Minerals, 41, 695-707   [view file]

Schultze D J, Flemming R L, Shepherd P H M, Helmstaedt H (2014) Mantle-derived guyanaite in a Cr-omphacite xenolith from Moses Rock diatreme, Utah, American Mineralogist, 99, 1277-1283

Nespolo M, Aroyo M I (2016) The modular structure of pyroxenes, European Journal of Mineralogy, 28, 189-203