Enstatite R050644

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Record 8 of 17  

Name: Enstatite
RRUFF ID: R050644
Ideal Chemistry: Mg2Si2O6
Locality: Morogoro, Tanzania
Source: Jibamitra Ganguly
Owner: RRUFF
Description: Light brown crystal fragment
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Mineral Group: [ pyroxene (81) ]
Quick search: [ All Enstatite samples (17) ]
CHEMISTRY 
RRUFF ID: R050644.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Mg0.90Fe0.10)SiO3
Reference File: [ View PDF ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Sample is oriented, mounted onto a pin and polished
Pin ID: L01041
Orientation: Laser parallel to  -a*  (-1 0 0).     Fiducial mark perpendicular to laser is parallel to  -b   [0 -1 0].
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Raman Mode Analysis
Direction of polarization of laser relative to fiducial mark:
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R050644
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R050644.1
Instrument settings: SensIR Durascope on a Nicolet Magna 860 FTIR
Resolution:
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POWDER DIFFRACTION 
RRUFF ID: R050644.1
Sample Description: Powder
Cell Refinement Output: a: 18.240(4)Å    b: 8.8359(9)Å    c: 5.189(1)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 836.3(2)Å3    Crystal System: orthorhombic
  File Type Information Close
Calculated diffraction file.

  File Type Information Close
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 Enstatite

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]

Kenngott A (1855) Mineralogische Notizen, betreffend die bekannten Species: Karstenit, Dolomit, Millerit, Turmalin, Galaktit, Wasser, Plagionit, Diopsid, Zinkit, Calcit und Felsöbanyt, sowie zwei neue: den Enstatit im Geschlechte der Augit-Spathe und den Pseudophit im Geschlechte der Serpentin-Steatite, Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften, 16, 152-179   [view file]

Warren B E, Modell D I (1930) The structure of enstatite MgSiO3, Zeitschrift für Kristallographie, 75, 1-14   [view file]

Kuno H (1954) Study of orthopyroxenes from volcanic rocks, American Mineralogist, 39, 30-46

Howie R A (1963) Cell parameters of orthopyroxenes, Mineralogical Society of America: Special Papers, 1, 213-222   [view file]

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Ohashi, Y. (1984) Polysynthetically-twinned structures of enstatite and wollastonite, Physics and Chemistry of Minerals, 10, 217-229

Ghose S, Schomaker V, Mcmullan R K (1986) Enstatite, Mg2Si2O6 - a neutron-diffraction refincement of the crystal structure and a rigid-body analysis of the thermal variation, Zeitschrift für Kristallographie, 176, 159-175   [view file]

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Jiang D, Fujino K, Tomioka N, Hosoya T, Das K (2002) High temperature X-ray diffraction study of enstatite up to the melting point, Journal of Mineralogical and Petrological Sciences, 97, 20-31   [view file]

Tribaudino M, Nestola F (2002) Average and local structure in P21/c clinopyroxenes along the join diopside-enstatite (CaMgSi2O6-Mg2Si2O6), European Journal of Mineralogy, 14, 549-555

Lin C C (2003) Pressure-induced metastable phase transition in orthoenstatite (MgSiO3) at room temperature: a Raman spectroscopic study, Journal of Solid State Chemistry, 174, 403-411

Nestola F, Tribaudino M (2003) The structure of Pbca orthopyroxenes along the join diopside-enstatite (CaMgSi2O6-Mg2Si2O6), European Journal of Mineralogy, 15, 365-371

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