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 = 35 kbar
      _database_code_amcsd 0012925

      CELL PARAMETERS:    4.7406   4.7406  12.9326   90.000   90.000  120.000
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    251.700
      Density (g/cm3):      4.035
      MAX. ABS. INTENSITY / VOLUME**2:      12.05768375    
      RIR:      0.973
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                25.70         62.49        3.4659    0   1   2         6
                35.34        100.00        2.5401    1   0   4         6
                37.96         47.04        2.3703    1   1   0         6
                43.57         97.06        2.0770    1   1   3        12
                46.41          1.76        1.9565    2   0   2         6
                52.83         49.78        1.7330    0   2   4         6
                57.82         99.69        1.5947    1   1   6        12
                60.05          2.20        1.5407    2   1   1        12
                61.45          3.60        1.5089    1   2   2        12
                61.66          7.26        1.5042    0   1   8         6
                66.88         39.56        1.3989    2   1   4        12
                68.57         59.75        1.3685    3   0   0         6
                70.81          1.07        1.3306    1   2   5        12
                74.75          1.59        1.2700    2   0   8         6
                77.36         17.74        1.2335    1   0  10         6
                77.71          8.35        1.2288    1   1   9        12
                81.16          2.47        1.1852    2   2   0         6
                84.85          1.66        1.1428    2   2   3        12
                86.86          1.32        1.1214    3   1   2        12
                87.05          3.03        1.1195    1   2   8        12
                89.59          8.77        1.0942    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.