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 = 745 C
      _database_code_amcsd 0008569

      CELL PARAMETERS:    5.1149   5.1149  13.9982   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    317.162
      Density (g/cm3):      4.865
      MAX. ABS. INTENSITY / VOLUME**2:      47.82719102    
      RIR:      3.201
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.77         24.77        3.7430    0   1   2         6
                32.61        100.00        2.7460    1   0   4         6
                35.09         67.03        2.5575    1   1   0         6
                40.21          7.01        2.2427    2  -1   3         6
                40.21         12.25        2.2427    1   1   3         6
                42.83          1.27        2.1116    2   0   2         6
                48.65         34.18        1.8715    0   2   4         6
                53.14         18.60        1.7236    2  -1   6         6
                53.14         16.35        1.7236    1   1   6         6
                56.55          8.91        1.6274    0   1   8         6
                61.39         11.94        1.5103    2   1   4         6
                61.39         13.55        1.5103    3  -1   4         6
                62.95         24.01        1.4766    3   0   0         6
                68.32          2.93        1.3730    2   0   8         6
                70.56          7.32        1.3348    1   0  10         6
                70.92          1.07        1.3289    2  -1   9         6
                74.15          4.85        1.2787    2   2   0         6
                79.18          1.94        1.2097   -1   3   8         6
                79.18          1.78        1.2097    1   2   8         6
                81.31          3.40        1.1833    0   2  10         6
                83.37          3.24        1.1592    1   3   4         6
                83.37          2.69        1.1592   -1   4   4         6
                86.86          2.15        1.1213    4  -2   6         6
                86.86          2.38        1.1213    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.