Gehlenite R060841

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Record 1528 of 4034  


Name: Gehlenite
RRUFF ID: R060841
Ideal Chemistry: Ca2Al(SiAl)O7
Locality: Monzoni, Tyrol, Italy
Source: Michael Scott S101000 [view label]
Owner: RRUFF
Description: Brown rectangular prism
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Mineral Group: [ Melilite (6) ]
Quick search: [ All Gehlenite samples (3) ]
CHEMISTRY 
RRUFF ID: R060841.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Ca1.92Na0.07K0.01)Σ=2(Al0.62Mg0.25Fe2+0.13)Σ=1(Si1.46Al0.54)O7 ; = lighter phase, and the darker phase is calcite
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Sample is oriented and mounted on a pin.
Pin ID: L00662
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: R060841
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
POWDER DIFFRACTION 
RRUFF ID: R060841.1
Sample Description: Powder
Cell Refinement Output: a: 7.7398(6)Å    b: 7.7398(6)Å    c: 5.0454(3)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 302.24(4)Å3    Crystal System: tetragonal
  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 Gehlenite

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]

Fuchs J N (1815) Ueber den gehlenit, ein neues mineral aus Tirol, Journal für Chemie und Physik, 15, 377-386   [view file]

Wright F E (1908) Three contact minerals, American Journal of Science, 156, 545-554   [view file]

Louisnathan S J (1971) Refinement of the crystal structure of a natural gehlenite, Ca2Al(Al,Si)2O7, The Canadian Mineralogist, 10, 822-837   [view file]

Sharma S K, Simons B, Yoder H S (1983) Raman study of anorthite, calcium Tschermak's pyroxene, and gehlenite in crystalline and glassy states, American Mineralogist, 68, 1113-1125   [view file]

Sharma S K, Yoder H S, Matson D W (1988) Raman study of some melilites in crystalline and glassy states, Geochimica et Cosmochimica Acta, 52, 1961-1967

Swainson I P, Dove M T, Schmahl W W, Putnis A (1992) Neutron powder diffraction study of the akermanite-gehlenite solid solution series, Physics and Chemistry of Minerals, 19, 185-195

Marincea S, Bilal E, Verkaeren J, Pascal M L, Fonteilles M (2001) Superposed parageneses in the spurrite-, tilleyite- and gehlenite-bearing skarns from Cornet Hill, Apuseni Mountains, Romania, The Canadian Mineralogist, 39, 1435-1453   [view file]

Shannon R D, Shannon R C, Medenbach O, Fischer R X (2002) Refractive index and dispersion of fluorides and oxides, Journal of Physical and Chemical Reference Data, 31, 931-970   [view file]

Gemmi M, Merlini M, Cruciani G, Artioli G (2007) Non-ideality and defectivity of the åkermanite-gehlenite solid solution: An X-ray diffraction and TEM study, American Mineralogist, 92, 1685-1694   [view file]

Merlini M, Gemmi M, Cruciani G, Artioli G (2008) High-temperature behaviour of melilite: in situ X-ray diffraction study of gehlenite-åkermanite-Na melilite solid solution, Physics and Chemistry of Minerals, 35, 147-155

Marincea Ş, Dumitraş D-G, Ghineț C, Fransolet A-M, Hatert F, Rondeaux M (2011) Gehlenite from three occurrences of high-temperature skarns, Romania: new mineralogical data, The Canadian Mineralogist, 49, 1001-1014   [view file]