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 = 497 C
      _database_code_amcsd 0008583

      CELL PARAMETERS:    5.0997   5.0997  13.9803   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    314.871
      Density (g/cm3):      4.888
      MAX. ABS. INTENSITY / VOLUME**2:      50.16179404    
      RIR:      3.341
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.83         21.26        3.7337    0   1   2         6
                32.67        100.00        2.7407    1   0   4         6
                35.20         65.15        2.5498    1   1   0         6
                40.32          5.36        2.2369    2  -1   3         6
                40.32         14.38        2.2369    1   1   3         6
                48.78         34.99        1.8668    0   2   4         6
                53.26         17.42        1.7201    2  -1   6         6
                53.26         14.03        1.7201    1   1   6         6
                56.64         10.42        1.6250    0   1   8         6
                61.57         12.14        1.5063    2   1   4         6
                61.57         14.62        1.5063    3  -1   4         6
                63.16         24.53        1.4722    3   0   0         6
                68.47          3.50        1.3703    2   0   8         6
                70.68          6.78        1.3328    1   0  10         6
                71.06          1.79        1.3266    2  -1   9         6
                74.41          5.10        1.2749    2   2   0         6
                79.39          2.42        1.2071   -1   3   8         6
                79.39          2.18        1.2071    1   2   8         6
                81.48          3.20        1.1812    0   2  10         6
                83.66          3.73        1.1560    1   3   4         6
                83.66          2.82        1.1560   -1   4   4         6
                87.15          1.99        1.1184    4  -2   6         6
                87.15          2.37        1.1184    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.