Aenigmatite R061088

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Name: Aenigmatite
RRUFF ID: R061088
Ideal Chemistry: Na4[Fe2+10Ti2]O4[Si12O36]
Locality: Naujakasik, Greenland
Source: Michael Scott S103019 [view label]
Owner: RRUFF
Description: Black prismatic crystals
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Mineral Group: [ Sapphirine (12) ]
Quick search: [ All Aenigmatite samples (2) ]
CHEMISTRY 
RRUFF ID: R061088.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Na1.72Ca0.28)Σ=2(Fe2+4.90Mn0.08Mg0.02)Σ=5(Ti0.85Al0.14Fe3+0.01)Σ=1(Si5.87Al0.13)Σ=6O20
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Sample is oriented and mounted onto a pin.
Pin ID: L01392
Orientation: Laser parallel to  (1 0 1).     Fiducial mark perpendicular to laser is parallel to  b   [0 1 0].
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R061088
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
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Raman Data (RAW) View Graph
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R061088.1
Sample Description: Powder, cell parameters are from single crystal
Cell Refinement Output: a: 10.416(2)Å    b: 10.840(3)Å    c: 8.943(2)Å
alpha: 105.18(1)°    beta: 96.57(2)°    gamma: 125.38(1)°   Volume: 747.7(2)Å3    Crystal System: triclinic
  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.

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Cell Refinement Data
Cell Refinement Output Data
DIF File
X-ray Data (XY - RAW) View Graph
RRUFF File
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REFERENCES for Aenigmatite

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]

Breithaupt J F A (1865) Mineralogische Studien. 29. Kölbingit. Ainigmatit, Berg- und Hüttenmännische Zeitung, 24, 397-398   [view file]

Lorenzen J (1882) On some minerals from the sodalite-syenite in the Juliane-haab district, south Greenland, Mineralogical Magazine, 5, 49-70   [view file]

Fleischer M (1964) New mineral names, American Mineralogist, 49, 816-821   [view file]

Kelsey C H, McKie D (1964) The unit-cell of aenigmatite, Mineralogical Magazine, 33, 986-1001   [view file]

International Mineralogical Association (1967) Commission on new minerals and mineral names, Mineralogical Magazine, 36, 131-136   [view file]

Cannillo E, Mazzi F, Fang J H, Robinson P D, Ohya Y (1971) The crystal structure of aenigmatite, American Mineralogist, 56, 427-446   [view file]

Yagi K, Souther J G (1974) Aenigmatite from Mt. Edziza, British Columbia, Canada, American Mineralogist, 59, 820-829   [view file]

Leake B E (1978) Nomenclature of amphiboles, American Mineralogist, 63, 1023-1052   [view file]

Burt D M (1994) Vector representation of some mineral compositions in the aenigmatite group, with special reference to hogtuvaite, The Canadian Mineralogist, 32, 449-457   [view file]

Grauch R I, Lindahl I, Evans H T, Burt D M, Fitzpatrick J J, Foord E E, Graff P, Hysingjord J (1994) Høgtuvaite, a new beryllian member of the aenigmatite group from Norway, with new X-ray data on aenigmatite, The Canadian Mineralogist, 32, 439-448   [view file]

Jensen B B (1996) Solid solution among members of the aenigmatite group, Mineralogical Magazine, 60, 982-986   [view file]

Kunzmann T (1999) The aenigmatite-rhönite mineral group, European Journal of Mineralogy, 11, 743-756   [view file]

Grew E S, Hålenius U, Pasero M, Barbier J (2008) Recommended nomenclature for the sapphirine and surinamite group (sapphirine supergroup), Mineralogical Magazine, 72, 839-876   [view file]

Grew E S, Hålenius U, Pasero M (2008) The crystal-chemistry of aenigmatite revisited: electron microprobe data, structure refinement and Mössbauer spectroscopy of aenigmatite from Vesterøya (Norway), European Journal of Mineralogy, 20, 983-991

Redhammer G J, Roth G, Topa D, Amthauer G (2008) Synthetic aenigmatite analog Na2(Mn5.26Na0.74)Ge6O20: structure and crystal chemical considerations, Acta Crystallographica, C64, i21-i26