Corundum R040096

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Record 2 of 34  

Name: Corundum
RRUFF ID: R040096
Ideal Chemistry: Al2O3
Locality: Sri Lanka
Source: University of Arizona Mineral Museum 11567 [view label]
Owner: RRUFF
Description: Pale purple hexagonal prism
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Mineral Group: [ Corundum (34) ]
Quick search: [ All Corundum samples (21) ]
CHEMISTRY 
RRUFF ID: R040096.2
Sample Description: Microprobe Fragment
Measured Chemistry: Al2.00O3
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Sample is oriented and mounted onto a pin.
Pin ID: L01198
Orientation: Laser parallel to  a*  (1 0 0).     Fiducial mark perpendicular to laser is parallel to  c   [0 0 1].
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Raman Mode Analysis
Direction of polarization of laser relative to fiducial mark:
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R040096
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R040096.1
Instrument settings: SensIR Durascope on a Nicolet Magna 860 FTIR
Resolution:
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POWDER DIFFRACTION 
RRUFF ID: R040096.1
Sample Description: Powder
Cell Refinement Output: a: 4.76016(8)Å    b: 4.76016(8)Å    c: 12.9946(3)Å
alpha: 90.°    beta: 90.°    gamma: 120.°   Volume: 254.999(9)Å3    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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REFERENCES for Corundum

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]

Gesner C (1565) Gemmis, quae erant in veste Aaronis, Liber Graecus, & e regione Latinus, Iola Hierotarantino interprete: cum Corollario Conradi Gesneri, in Sancti Patris Epiphanii Episcopi Cypri ad Diodorum Tyri episcopum, De XII 1-29   [view file]

Pauling L, Hendricks S B (1925) The crystal structures of hematite and corundum, Journal of the American Chemical Society, 47, 781-790   [view file]

Hutton C O (1950) Studies of heavy detrital minerals, Bulletin of the Geological Society of America, 61, 635-710   [view file]

Newnham R E, de Haan Y M (1962) Refinement of the α Al2O3, Ti2O3, V2O3 and Cr2O3 structures, Zeitschrift für Kristallographie, 117, 235-237   [view file]

Hayek E, Inama P, Schatz B (1963) Mischkristallbildung von As2O3 und Sb2O3, Monatshefte für Chemie, 94, 366-372

Moss S C, Newnham R E (1964) The chromium position in ruby, Zeitschrift für Kristallographie, 120, 359-363   [view file]

Yates B, Cooper R F, Pojur A F (1972) Thermal expansion at elevated temperatures: II. Aluminium oxide: experimental data between 100 and 800 K and their analysis, Journal of Physics C: Solid State Physics, 5, 1046-1058

Finger L W, Hazen R M (1978) Crystal structure and compression of ruby to 46 kbar, Journal of Applied Physics, 49, 5823-5826

Ishizawa N, Miyata T, Minato I, Marumo F, Iwai S I (1980) A structural investigation of α-Al2O3 at 2170 K, Acta Crystallographica, B36, 228-230

Lewis J, Schwarzenbach D (1982) Electric field gradients and charge density in corundum α-Al2O3, Acta Crystallographica, A38, 733-739

Kirfel A, Eichhorn K (1990) Accurate structure analysis with synchrotron radiation. The electron density in Al2O3 and Cu2O, Acta Crystallographica, A46, 271-284

Boettger J C (1997) High-precision, all-electron, full-potential calculation of the equation of state and elastic constants of corundum, Physical Review B, 55, 750-756

Catti M, Pavese A (1998) Equation of state of α-Al2O3 (corundum) from quasi-harmonic atomistic simulations, Acta Crystallographica, B54, 741-749

Bucher K, de Capitani C, Grapes R (2005) The development of a margarite-corundum blackwall by metasomatic alteration of a slice of mica schist in ultramafic rock, Kvesjöen, Norwegian Caledonides, The Canadian Mineralogist, 43, 129-156   [view file]

Gao R, Li H, Zhao J (2015) Dependence of R fluorescence lines of rubies on Cr3+ concentration at various temperatures, with implications for pressure calibrations in experimental apparatus, American Mineralogist, 100, 1554-1561

Sutherland F L, Coenraads R R, Abduriyim A, Meffre S, Hoskin P W O, Giuliani G, Beattie R, Wuhrer R, Sutherland G B (2015) Corundum (sapphire) and zircon relationships, Lava Plains gem fields, NE Australia: integrated mineralogy, geochemistry, age determination, genesis and geographical typing, Mineralogical Magazine, 79, 545-581

Sorokina E S, Hofmeister W, Häger T, Mertz-Kraus R, Buhre S, Saul J M (2016) Morphological and chemical evolution of corundum (ruby and sapphire): Crystal ontogeny reconstructed by EMPA, LA-ICP-MS, and Cr3+ Raman mapping, American Mineralogist, 101, 2716-2722

Wong J, Verdel C, Allen C M (2017) Trace-element compositions of sapphire and ruby from the eastern Australian gemstone belt, Mineralogical Magazine, 81, 1551-1576

Palke A C, Wong J, Verdel C, Ávila J N (2018) A common origin for Thai/Cambodian rubies and blue and violet sapphires from Yogo Gulch, Montana, U.S.A.?, American Mineralogist, 103, 469-479