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: ilm65, T = 301 C
      _database_code_amcsd 0008581

      CELL PARAMETERS:    5.0876   5.0876  13.9485   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    312.662
      Density (g/cm3):      4.923
      MAX. ABS. INTENSITY / VOLUME**2:      50.21878383    
      RIR:      3.322
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.89         24.43        3.7249    0   1   2         6
                32.75        100.00        2.7343    1   0   4         6
                35.28         67.24        2.5438    1   1   0         6
                40.42          6.22        2.2316    2  -1   3         6
                40.42         13.94        2.2316    1   1   3         6
                43.06          1.23        2.1007    2   0   2         6
                48.90         35.93        1.8625    0   2   4         6
                53.39         20.26        1.7161    2  -1   6         6
                53.39         16.92        1.7161    1   1   6         6
                56.79          9.71        1.6212    0   1   8         6
                56.84          1.15        1.6198   -1   3   2         6
                61.73         12.75        1.5027    2   1   4         6
                61.73         15.36        1.5027    3  -1   4         6
                63.33         26.61        1.4686    3   0   0         6
                68.65          3.27        1.3672    2   0   8         6
                70.86          8.31        1.3298    1   0  10         6
                71.25          1.62        1.3235    2  -1   9         6
                74.62          5.68        1.2719    2   2   0         6
                79.61          2.38        1.2043   -1   3   8         6
                79.61          2.08        1.2043    1   2   8         6
                81.71          4.07        1.1785    0   2  10         6
                83.90          4.13        1.1532    1   3   4         6
                83.90          3.12        1.1532   -1   4   4         6
                87.40          3.01        1.1158    2   2   6         6
                87.40          2.60        1.1158    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.