Corundum
      Finger L W, Hazen R M
      Journal of Applied Physics 49 (1978) 5823-5826
      Crystal structure and compression of ruby to 46 kbar
      P = 46 kbar
      _database_code_amcsd 0012926

      CELL PARAMETERS:    4.7352   4.7352  12.9176   90.000   90.000  120.000
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    250.836
      Density (g/cm3):      4.049
      MAX. ABS. INTENSITY / VOLUME**2:      12.04931613    
      RIR:      0.969
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                25.73         63.13        3.4620    0   1   2         6
                35.38        100.00        2.5371    1   0   4         6
                38.01         46.86        2.3676    1   1   0         6
                43.63         98.46        2.0747    1   1   3        12
                46.47          1.58        1.9543    2   0   2         6
                52.89         50.64        1.7310    0   2   4         6
                57.89         99.52        1.5929    1   1   6        12
                60.13          2.42        1.5389    2   1   1        12
                61.53          3.43        1.5072    1   2   2        12
                61.74          7.65        1.5024    0   1   8         6
                66.97         40.03        1.3973    2   1   4        12
                68.66         60.25        1.3669    3   0   0         6
                70.90          1.19        1.3291    1   2   5        12
                74.85          1.62        1.2686    2   0   8         6
                77.47         17.76        1.2321    1   0  10         6
                77.82          8.71        1.2274    1   1   9        12
                81.27          2.42        1.1838    2   2   0         6
                84.97          1.72        1.1414    2   2   3        12
                86.98          1.35        1.1201    3   1   2        12
                87.17          3.12        1.1182    1   2   8        12
                89.72          8.58        1.0929    0   2  10         6
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       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.