Ankerite R050197

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Record 2 of 4  


Name: Ankerite
RRUFF ID: R050197
Ideal Chemistry: CaFe2+(CO3)2
Locality: Brownley Hill mine, Nenthead, Cumbria, England
Source: Marcus Origlieri
Owner: RRUFF
Description: Curved saddle-shaped rhombohedral crystals
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Quick search: [ All Ankerite samples (4) ]
CHEMISTRY 
RRUFF ID: R050197.2
Sample Description: Microprobe Fragment
Measured Chemistry: Ca1.00(Fe2+0.52Mg0.35Ca0.08Mn2+0.05)Σ=1(CO3)2 where C was not measured but estimated by difference and stoichiometry
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Sample is oriented, mounted onto a pin.
Pin ID: M00092
Orientation: Laser parallel to  a*  (1 0 0).     Fiducial mark perpendicular to laser is parallel to  c   [0 0 1].
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Direction of polarization of laser relative to fiducial mark:
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R050197
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
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Raman Data (Processed)
RRUFF File
Raman Data (RAW) View Graph
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R050197.1
Sample Description: Powder
Cell Refinement Output: a: 4.8328(2)Å    b: 4.8328(2)Å    c: 16.209(1)Å
alpha: 90.°    beta: 90.°    gamma: 120.°   Volume: 327.86(2)    Crystal System: hexagonal
  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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Cell Refinement Data
Cell Refinement Output Data
DIF File
X-ray Data (XY - Processed)
RRUFF File
X-ray Data (XY - RAW) View Graph
RRUFF File
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REFERENCES for Ankerite

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]

Mohs F (1825) Paratomous lime-haloide, in Treatise on Mineralogy Vol II, translated by Haidinger Archibald and Co. Edinburgh 100-101   [view file]

Luboldt R (1857) Ueber den Ankerit, Annalen der Physik, 178, 435-437   [view file]

Beran A, Zemann J (1977) Refinement and comparison of the crystal structures of a dolomite and of an Fe-rich ankerite, Tschermaks Mineralogische und Petrographische Mitteilungen, 24, 279-286

Mozley P S, Hoernle K (1990) Geochemistry of carbonate cements in the Sag River and Shublik Formation (Triassic/Jurassic), North Slope, Alaska: implications for the geochemical evolution of formation waters, Sedimentology, 37, 817-836

Ondruš P, Veselovský F, Gabašová A, Hloušek J, Šrein V, Vavrín I, Skála R, Sejkora J, Drábek M (2003) Primary minerals of the Jáchymov ore district, Journal of the Czech Geological Society, 48, 19-147   [view file]

Rividi N, van Zuilen M, Philippot P, Ménez B, Godard G, Poidatz E (2010) Calibration of carbonate composition using micro-Raman analysis: Application to planetary surface exploration, Astrobiology, 10, 293-309