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 = 844 C
      _database_code_amcsd 0008573

      CELL PARAMETERS:    5.1219   5.1219  14.0077   90.000   90.000  120.000
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    318.240
      Density (g/cm3):      4.849
      MAX. ABS. INTENSITY / VOLUME**2:      46.66610707    
      RIR:      3.134
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.74         26.01        3.7474    0   1   2         6
                32.58        100.00        2.7486    1   0   4         6
                35.04         67.71        2.5609    1   1   0         6
                38.56          1.03        2.3346    0   0   6         2
                40.16         19.15        2.2454    1   1   3        12
                42.77          1.34        2.1144    2   0   2         6
                48.59         34.17        1.8737    0   2   4         6
                53.08         35.69        1.7253    1   1   6        12
                56.44          1.58        1.6305    1   2   2        12
                56.50          8.58        1.6287    0   1   8         6
                61.30         25.17        1.5122    2   1   4        12
                62.85         23.83        1.4786    3   0   0         6
                68.24          2.79        1.3743    2   0   8         6
                70.50          7.38        1.3357    1   0  10         6
                70.85          1.47        1.3300    1   1   9        12
                74.04          4.72        1.2805    2   2   0         6
                79.08          3.47        1.2109    1   2   8        12
                81.22          3.35        1.1843    0   2  10         6
                83.24          5.65        1.1607    1   3   4        12
                86.73          4.51        1.1227    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.