Creedite R050141

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Record 952 of 4043  


Name: Creedite
RRUFF ID: R050141
Ideal Chemistry: Ca3Al2(SO4)(OH)2F8·2H2O
Locality: Mina de Navidad, Rodeo, Durango, Mexico
Source: Dave Bunk Minerals
Owner: RRUFF
Description: Radiating group of bladed crystals
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
CHEMISTRY 
RRUFF ID: R050141.2
Sample Description: Microprobe Fragment
Measured Chemistry: Ca3.00Al2.00(S1.00O4)(OH)2(F7.31(OH)0.69)Σ=8·2H2O ; OH estimated by stoichiometry and charge balance OH=10-F
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Sample is oriented, mounted onto a pin and polished
Pin ID: L00255
Orientation: Laser parallel to  a*  (1 0 0).     Fiducial mark perpendicular to laser is parallel to  b   [0 1 0].
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Direction of polarization of laser relative to fiducial mark:
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R050141
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R050141.1
Sample Description: Powder
Instrument settings: SensIR Durascope on a Nicolet Magna 860 FTIR
Resolution:
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RRUFF ID: R050141.1
Sample Description: Powder
Instrument settings: PIKE GladiATR - Far-IR on a Nicolet Magna 860 FTIR
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POWDER DIFFRACTION 
RRUFF ID: R050141.1
Sample Description: Powder
Cell Refinement Output: a: 13.9533(6)Å    b: 8.6087(3)Å    c: 9.9874(3)Å
alpha: 90.°    beta: 94.355(4)°    gamma: 90.°   Volume: 1196.24(5)Å3    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 Creedite

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]

Gordon S G (1916) New species, American Mineralogist, 1, 86-88   [view file]

Larsen E S, Wells R C (1916) Some minerals from the fluorite-barite vein near Wagon Wheel Gap, Colorado, Proceedings of the National Academy of Sciences, 2, 360-365   [view file]

Fleischer M (1954) New mineral names, American Mineralogist, 39, 402-408   [view file]

Dunn P J, Grice J D, Fleischer M, Pabst A (1983) New mineral names, American Mineralogist, 68, 1038-1041   [view file]

Giuseppetti G, Tadini C (1983) Structural analysis and refinement of Bolivian creedite, Ca3Al2F8(OH)2(SO4)·2H2O. The role of the hydrogen atoms, Neues Jahrbuch für Mineralogie, Monatshefte, 1983, 69-78

Lane M D (2007) Mid-infrared emission spectroscopy of sulfate and sulfate-bearing minerals, American Mineralogist, 92, 1-18   [view file]

Ksenofontov D A, Kabalov Y K, Zubkova N V, Shiyapova R R (2011) Structure refinement and thermal stability of creedite (English), Neorganicheskie Materialy, 47, 1533-1536   [view file]