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 = 745 C
      _database_code_amcsd 0008586

      CELL PARAMETERS:    5.1190   5.1190  14.0135   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    318.011
      Density (g/cm3):      4.840
      MAX. ABS. INTENSITY / VOLUME**2:      48.43158446    
      RIR:      3.258
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.75         21.91        3.7463    0   1   2         6
                32.58        100.00        2.7487    1   0   4         6
                35.06         65.37        2.5595    1   1   0         6
                40.17          5.69        2.2446    2  -1   3         6
                40.17         13.64        2.2446    1   1   3         6
                48.61         34.15        1.8731    0   2   4         6
                53.08         16.98        1.7252    2  -1   6         6
                53.08         14.36        1.7252    1   1   6         6
                56.49          9.79        1.6291    0   1   8         6
                61.33         11.73        1.5116    2   1   4         6
                61.33         13.80        1.5116    3  -1   4         6
                62.89         23.45        1.4777    3   0   0         6
                68.24          3.26        1.3743    2   0   8         6
                70.47          6.57        1.3362    1   0  10         6
                70.84          1.48        1.3302    2  -1   9         6
                74.08          4.79        1.2797    2   2   0         6
                79.09          1.96        1.2108    1   2   8         6
                79.09          2.19        1.2108   -1   3   8         6
                81.21          3.04        1.1845    0   2  10         6
                83.29          2.64        1.1602   -1   4   4         6
                83.29          3.35        1.1602    1   3   4         6
                86.77          2.15        1.1223    2   2   6         6
                86.77          1.88        1.1223    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.