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 = 506 C
      _database_code_amcsd 0008563

      CELL PARAMETERS:    5.0969   5.0969  13.9709   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    314.315
      Density (g/cm3):      4.909
      MAX. ABS. INTENSITY / VOLUME**2:      49.52909456    
      RIR:      3.285
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.85         24.53        3.7315    0   1   2         6
                32.70        100.00        2.7390    1   0   4         6
                35.22         67.09        2.5484    1   1   0         6
                40.34          6.51        2.2356    2  -1   3         6
                40.34         13.08        2.2356    1   1   3         6
                42.98          1.21        2.1045    2   0   2         6
                48.81         35.19        1.8657    0   2   4         6
                53.29         19.61        1.7190    2  -1   6         6
                53.29         16.28        1.7190    1   1   6         6
                56.68          9.48        1.6239    0   1   8         6
                56.73          1.02        1.6227   -1   3   2         6
                61.61         12.41        1.5054    2   1   4         6
                61.61         14.53        1.5054    3  -1   4         6
                63.20         25.28        1.4713    3   0   0         6
                68.52          3.14        1.3695    2   0   8         6
                70.73          7.84        1.3320    1   0  10         6
                71.11          1.20        1.3257    2  -1   9         6
                74.46          5.27        1.2742    2   2   0         6
                79.44          2.16        1.2063   -1   3   8         6
                79.44          1.98        1.2063    1   2   8         6
                81.55          3.74        1.1805    0   2  10         6
                83.71          3.68        1.1553    1   3   4         6
                83.71          2.91        1.1553   -1   4   4         6
                87.21          2.34        1.1178    4  -2   6         6
                87.21          2.71        1.1178    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.