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 = 793 C
      _database_code_amcsd 0008571

      CELL PARAMETERS:    5.1184   5.1184  14.0031   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    317.707
      Density (g/cm3):      4.857
      MAX. ABS. INTENSITY / VOLUME**2:      47.38661985    
      RIR:      3.177
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.76         25.04        3.7452    0   1   2         6
                32.59        100.00        2.7473    1   0   4         6
                35.06         67.17        2.5592    1   1   0         6
                40.19          7.58        2.2440    2  -1   3         6
                40.19         11.60        2.2440    1   1   3         6
                42.80          1.30        2.1130    2   0   2         6
                48.62         34.04        1.8726    0   2   4         6
                53.11         18.38        1.7245    2  -1   6         6
                53.11         16.66        1.7245    1   1   6         6
                56.53          8.75        1.6281    0   1   8         6
                61.34         12.00        1.5112    2   1   4         6
                61.34         13.25        1.5112    3  -1   4         6
                62.90         23.87        1.4776    3   0   0         6
                68.28          2.88        1.3737    2   0   8         6
                70.53          7.27        1.3353    1   0  10         6
                70.88          1.09        1.3295    2  -1   9         6
                74.09          4.78        1.2796    2   2   0         6
                79.13          1.74        1.2103    1   2   8         6
                79.13          1.87        1.2103   -1   3   8         6
                81.27          3.35        1.1838    0   2  10         6
                83.30          3.11        1.1600    1   3   4         6
                83.30          2.69        1.1600   -1   4   4         6
                86.80          2.15        1.1220    4  -2   6         6
                86.80          2.33        1.1220    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.