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 = 818 C
      _database_code_amcsd 0008572

      CELL PARAMETERS:    5.1205   5.1205  14.0057   90.000   90.000  120.000
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    318.023
      Density (g/cm3):      4.852
      MAX. ABS. INTENSITY / VOLUME**2:      45.43102935    
      RIR:      3.049
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.75         26.08        3.7465    0   1   2         6
                32.58        100.00        2.7481    1   0   4         6
                35.05         67.19        2.5602    1   1   0         6
                38.57          1.01        2.3343    0   0   6         2
                40.17         18.80        2.2448    1   1   3        12
                42.78          1.33        2.1138    2   0   2         6
                48.60         32.83        1.8732    0   2   4         6
                53.09         33.90        1.7250    1   1   6        12
                56.45          1.50        1.6300    1   2   2        12
                56.51          8.08        1.6284    0   1   8         6
                61.32         23.36        1.5118    2   1   4        12
                62.87         22.05        1.4782    3   0   0         6
                68.26          2.56        1.3740    2   0   8         6
                70.51          6.65        1.3355    1   0  10         6
                70.86          1.32        1.3298    1   1   9        12
                74.06          4.22        1.2801    2   2   0         6
                79.10          3.06        1.2107    1   2   8        12
                81.24          2.93        1.1841    0   2  10         6
                83.27          4.92        1.1604    1   3   4        12
                86.76          3.85        1.1224    2   2   6        12
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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.