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 = 594 C
      _database_code_amcsd 0008577

      CELL PARAMETERS:    5.1062   5.1062  13.9817   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    315.702
      Density (g/cm3):      4.888
      MAX. ABS. INTENSITY / VOLUME**2:      48.27210284    
      RIR:      3.216
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.81         24.20        3.7372    0   1   2         6
                32.66        100.00        2.7422    1   0   4         6
                35.15         66.78        2.5531    1   1   0         6
                40.28          5.96        2.2391    2  -1   3         6
                40.28         13.26        2.2391    1   1   3         6
                42.90          1.21        2.1081    2   0   2         6
                48.73         33.99        1.8686    0   2   4         6
                53.22         18.36        1.7211    2  -1   6         6
                53.22         15.54        1.7211    1   1   6         6
                56.63          9.04        1.6254    0   1   8         6
                61.50         11.74        1.5079    2   1   4         6
                61.50         13.58        1.5079    3  -1   4         6
                63.07         23.56        1.4740    3   0   0         6
                68.43          2.97        1.3711    2   0   8         6
                70.66          7.10        1.3331    1   0  10         6
                71.03          1.18        1.3271    2  -1   9         6
                74.30          4.83        1.2765    2   2   0         6
                79.32          1.97        1.2079   -1   3   8         6
                79.32          1.81        1.2079    1   2   8         6
                81.44          3.32        1.1817    0   2  10         6
                83.54          3.26        1.1573    1   3   4         6
                83.54          2.64        1.1573   -1   4   4         6
                87.04          2.03        1.1196    4  -2   6         6
                87.04          2.32        1.1196    2   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.