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 = 818 C
      _database_code_amcsd 0008588

      CELL PARAMETERS:    5.1254   5.1254  14.0237   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    319.041
      Density (g/cm3):      4.824
      MAX. ABS. INTENSITY / VOLUME**2:      47.56489162    
      RIR:      3.210
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.72         22.79        3.7504    0   1   2         6
                32.55        100.00        2.7512    1   0   4         6
                35.01         65.74        2.5627    1   1   0         6
                40.13          6.28        2.2472    2  -1   3         6
                40.13         12.94        2.2472    1   1   3         6
                42.73          1.07        2.1159    2   0   2         6
                48.55         33.96        1.8752    0   2   4         6
                53.03         17.20        1.7269    2  -1   6         6
                53.03         14.86        1.7269    1   1   6         6
                56.44          9.44        1.6304    0   1   8         6
                61.25         11.64        1.5133    2   1   4         6
                61.25         13.52        1.5133    3  -1   4         6
                62.80         23.27        1.4796    3   0   0         6
                68.17          3.11        1.3756    2   0   8         6
                70.41          6.65        1.3372    1   0  10         6
                70.76          1.32        1.3314    2  -1   9         6
                73.98          4.69        1.2813    2   2   0         6
                79.00          1.86        1.2120    1   2   8         6
                79.00          2.07        1.2120   -1   3   8         6
                81.12          3.05        1.1855    0   2  10         6
                83.17          2.57        1.1615   -1   4   4         6
                83.17          3.21        1.1615    1   3   4         6
                86.65          2.14        1.1236    2   2   6         6
                86.65          1.90        1.1236    4  -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.