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 = 697 C
      _database_code_amcsd 0008585

      CELL PARAMETERS:    5.1145   5.1145  14.0061   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    317.290
      Density (g/cm3):      4.851
      MAX. ABS. INTENSITY / VOLUME**2:      48.68110552    
      RIR:      3.268
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.77         22.15        3.7434    0   1   2         6
                32.60        100.00        2.7469    1   0   4         6
                35.09         65.42        2.5573    1   1   0         6
                40.21          5.66        2.2428    2  -1   3         6
                40.21         13.71        2.2428    1   1   3         6
                42.83          1.02        2.1116    2   0   2         6
                48.65         34.19        1.8717    0   2   4         6
                53.12         17.48        1.7241    2  -1   6         6
                53.12         14.43        1.7241    1   1   6         6
                56.52          9.77        1.6282    0   1   8         6
                61.38         11.74        1.5104    2   1   4         6
                61.38         13.93        1.5104    3  -1   4         6
                62.95         23.64        1.4764    3   0   0         6
                68.29          3.25        1.3734    2   0   8         6
                70.52          6.75        1.3354    1   0  10         6
                70.89          1.34        1.3294    2  -1   9         6
                74.16          4.85        1.2786    2   2   0         6
                79.16          1.97        1.2100    1   2   8         6
                79.16          2.20        1.2100   -1   3   8         6
                81.27          3.16        1.1837    0   2  10         6
                83.37          3.42        1.1592    1   3   4         6
                83.37          2.66        1.1592   -1   4   4         6
                86.86          1.92        1.1214    4  -2   6         6
                86.86          2.24        1.1214    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.