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 = 721 C
      _database_code_amcsd 0008568

      CELL PARAMETERS:    5.1131   5.1131  13.9964   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    316.895
      Density (g/cm3):      4.869
      MAX. ABS. INTENSITY / VOLUME**2:      48.16709697    
      RIR:      3.221
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.78         24.52        3.7419    0   1   2         6
                32.62        100.00        2.7454    1   0   4         6
                35.10         66.97        2.5566    1   1   0         6
                40.22          6.71        2.2420    2  -1   3         6
                40.22         12.56        2.2420    1   1   3         6
                42.84          1.26        2.1109    2   0   2         6
                48.67         34.26        1.8710    0   2   4         6
                53.15         18.78        1.7232    2  -1   6         6
                53.15         16.10        1.7232    1   1   6         6
                56.56          9.01        1.6271    0   1   8         6
                61.41         12.02        1.5098    2   1   4         6
                61.41         13.67        1.5098    3  -1   4         6
                62.97         24.14        1.4760    3   0   0         6
                68.33          2.98        1.3727    2   0   8         6
                70.57          7.36        1.3346    1   0  10         6
                70.93          1.10        1.3286    2  -1   9         6
                74.18          4.92        1.2783    2   2   0         6
                79.20          1.83        1.2094    1   2   8         6
                79.20          1.97        1.2094   -1   3   8         6
                81.33          3.45        1.1831    0   2  10         6
                83.40          2.74        1.1588   -1   4   4         6
                83.40          3.30        1.1588    1   3   4         6
                86.90          2.15        1.1210    4  -2   6         6
                86.90          2.43        1.1210    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.