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 = 945 C
      _database_code_amcsd 0008593

      CELL PARAMETERS:    5.1353   5.1353  14.0372   90.000   90.000  120.000
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    320.585
      Density (g/cm3):      4.801
      MAX. ABS. INTENSITY / VOLUME**2:      45.64023269    
      RIR:      3.095
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.68         25.15        3.7566    0   1   2         6
                32.50        100.00        2.7549    1   0   4         6
                34.94         66.76        2.5677    1   1   0         6
                40.06         19.23        2.2510    1   1   3        12
                42.65          1.22        2.1198    2   0   2         6
                48.46         33.80        1.8783    0   2   4         6
                52.95         33.97        1.7293    1   1   6        12
                56.28          1.46        1.6347    1   2   2        12
                56.37          8.73        1.6322    0   1   8         6
                61.13         24.55        1.5160    2   1   4        12
                62.67         23.13        1.4824    3   0   0         6
                68.07          2.81        1.3775    2   0   8         6
                70.33          6.88        1.3386    1   0  10         6
                70.67          1.44        1.3330    1   1   9        12
                73.81          4.46        1.2838    2   2   0         6
                78.86          3.44        1.2138    1   2   8        12
                81.00          3.06        1.1870    0   2  10         6
                82.98          5.32        1.1637    1   3   4        12
                86.46          4.11        1.1255    2   2   6        12
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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.