Wollastonite-2M R040008


Name: Wollastonite-2M
RRUFF ID: R040008
Ideal Chemistry: CaSiO3
Locality: Lake Baikal, Siberia, Russia
Source: University of Arizona Mineral Museum 4220 [view label]
Owner: RRUFF
Description: Colorless parallel acicular crystals
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
CHEMISTRY 
RRUFF ID: R040008.2
Sample Description: Microprobe Fragment
Measured Chemistry: Ca1.00Si1.00O3; trace amounts of Fe and Mn
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R040008
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R040008.1
Sample Description: Powder
Instrument settings: SensIR Durascope on a Nicolet Magna 860 FTIR
Resolution:
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POWDER DIFFRACTION 
RRUFF ID: R040008.1
Sample Description: Powder
Cell Refinement Output: a: 15.4141(8)Å    b: 7.317(1)Å    c: 7.0649(5)Å
alpha: 90.°    beta: 95.389(5)°    gamma: 90.°   Volume: 793.3(1)    Crystal System: monoclinic
  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 Wollastonite-2M

American Mineralogist Crystal Structure Database Record: [view record]

Bowen N L (1922) Two corrections to new data, American Mineralogist, 7, 64-66   [view file]

International Mineralogical Association (1962) International Mineralogical Association: Commission on new minerals and mineral names, Mineralogical Magazine, 33, 260-263   [view file]

Bailey S W (1977) Report of the I.M.A-I.U.Cr. Joint Committee on Nomenclature, American Mineralogist, 62, 411-415   [view file]

Henmi C, Kawahara A, Henmi K, Kusachi I, Takéuchi Y (1983) The 3T, 4T and 5T polytypes of wollastonite from Kushiro, Hiroshima Prefecture, Japan, American Mineralogist, 68, 156-163   [view file]

Hesse K F (1984) Refinement of the crystal structure of wollastonite-2M (parawollastonite), Zeitschrift für Kristallographie, 168, 93-98   [view file]

Nickel E H (1994) Standardisation of polytype suffixes, Mineralogy and Petrology, 50, issue 4 293-294

Swamy V, Dubrovinsky L S (1997) Thermodynamic data for the phases in the CaSiO3 system, Geochimica et Cosmochimica Acta, 61, issue 6 1181-1191

Joswig W, Paulus E F, Winkler B, Milman V (2003) The crystal structure of CaSiO3-walstromite, a special isomorph of wollastonite-II, Zeitschrift für Kristallographie, 218, 811-818