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 = 592 C
      _database_code_amcsd 0008597

      CELL PARAMETERS:    5.1125   5.1125  14.0019   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    316.944
      Density (g/cm3):      4.856
      MAX. ABS. INTENSITY / VOLUME**2:      50.14462297    
      RIR:      3.362
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.78         20.57        3.7420    0   1   2         6
                32.61        100.00        2.7459    1   0   4         6
                35.11         65.07        2.5562    1   1   0         6
                40.22          4.96        2.2420    2  -1   3         6
                40.22         14.59        2.2420    1   1   3         6
                48.67         34.87        1.8710    0   2   4         6
                53.14         16.90        1.7235    2  -1   6         6
                53.14         13.80        1.7235    1   1   6         6
                56.54         10.51        1.6277    0   1   8         6
                61.41         12.15        1.5098    2   1   4         6
                61.41         14.59        1.5098    3  -1   4         6
                62.98         24.31        1.4758    3   0   0         6
                68.32          3.59        1.3730    2   0   8         6
                70.54          6.64        1.3350    1   0  10         6
                70.91          1.78        1.3290    2  -1   9         6
                74.19          5.16        1.2781    2   2   0         6
                79.19          2.49        1.2095   -1   3   8         6
                79.19          2.22        1.2095    1   2   8         6
                81.30          3.17        1.1834    0   2  10         6
                83.41          2.88        1.1587   -1   4   4         6
                83.41          3.76        1.1587    1   3   4         6
                86.90          1.95        1.1210    4  -2   6         6
                86.90          2.29        1.1210    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.