Corundum
      Ishizawa N, Miyata T, Minato I, Marumo F, Iwai S
      Acta Crystallographica B36 (1980) 228-230
      A structural investigation of alpha-Al2O3 at 2170 K
      T = 300 K
      _database_code_amcsd 0009699

      CELL PARAMETERS:    4.7540   4.7540  12.9900   90.000   90.000  120.000
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    254.248
      Density (g/cm3):      3.995
      MAX. ABS. INTENSITY / VOLUME**2:      12.16030185    
      RIR:      0.991
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                25.62         61.58        3.4773    0   1   2         6
                35.20         97.41        2.5498    1   0   4         6
                37.85         44.45        2.3770    1   1   0         6
                43.43        100.00        2.0837    1   1   3        12
                46.26          1.43        1.9623    2   0   2         6
                52.64         49.82        1.7387    0   2   4         6
                57.59         98.80        1.6006    1   1   6        12
                59.86          2.56        1.5451    2   1   1        12
                61.25          3.23        1.5133    1   2   2        12
                61.38          7.67        1.5105    0   1   8         6
                66.65         39.14        1.4033    2   1   4        12
                68.35         60.47        1.3724    3   0   0         6
                70.55          1.28        1.3350    1   2   5        12
                74.41          1.54        1.2749    2   0   8         6
                76.97         17.34        1.2388    1   0  10         6
                77.35          9.49        1.2337    1   1   9        12
                80.88          2.22        1.1885    2   2   0         6
                84.54          1.89        1.1461    2   2   3        12
                86.55          1.35        1.1246    3   1   2        12
                86.66          3.00        1.1235    1   2   8        12
                89.14          8.10        1.0986    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.