Ilmenite
      Harrison R J, Redfern S A T
      Physics and Chemistry of Minerals 28 (2001) 399-412
      Short- and long-range ordering in the ilmenite-hematite solid solution
      Sample: ilm60, T = 769 C
      _database_code_amcsd 0008570

      CELL PARAMETERS:    5.1167   5.1167  14.0008   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    317.438
      Density (g/cm3):      4.861
      MAX. ABS. INTENSITY / VOLUME**2:      47.60725293    
      RIR:      3.189
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.76         25.14        3.7441    0   1   2         6
                32.60        100.00        2.7467    1   0   4         6
                35.08         67.24        2.5583    1   1   0         6
                40.20          7.37        2.2434    2  -1   3         6
                40.20         11.87        2.2434    1   1   3         6
                42.81          1.31        2.1123    2   0   2         6
                48.64         34.19        1.8721    0   2   4         6
                53.12         18.79        1.7240    2  -1   6         6
                53.12         16.62        1.7240    1   1   6         6
                56.54          8.80        1.6277    0   1   8         6
                61.36         12.04        1.5108    2   1   4         6
                61.36         13.44        1.5108    3  -1   4         6
                62.92         24.09        1.4771    3   0   0         6
                68.30          2.90        1.3733    2   0   8         6
                70.54          7.41        1.3350    1   0  10         6
                74.12          4.85        1.2792    2   2   0         6
                79.15          1.90        1.2100   -1   3   8         6
                79.15          1.77        1.2100    1   2   8         6
                81.29          3.44        1.1836    0   2  10         6
                83.34          2.72        1.1596   -1   4   4         6
                83.34          3.19        1.1596    1   3   4         6
                86.83          2.41        1.1217    2   2   6         6
                86.83          2.18        1.1217    4  -2   6         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.