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 = 399 C
      _database_code_amcsd 0008561

      CELL PARAMETERS:    5.0910   5.0910  13.9543   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    313.218
      Density (g/cm3):      4.927
      MAX. ABS. INTENSITY / VOLUME**2:      49.29831202    
      RIR:      3.258
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.87         26.32        3.7272    0   1   2         6
                32.73        100.00        2.7358    1   0   4         6
                35.26         68.15        2.5455    1   1   0         6
                38.72          1.14        2.3257    0   0   6         2
                40.39          7.64        2.2330    2  -1   3         6
                40.39         12.24        2.2330    1   1   3         6
                43.03          1.41        2.1020    2   0   2         6
                48.87         35.55        1.8636    0   2   4         6
                53.36         20.88        1.7170    2  -1   6         6
                53.36         18.16        1.7170    1   1   6         6
                56.76          8.98        1.6220    0   1   8         6
                56.80          1.17        1.6208   -1   3   2         6
                61.69         12.64        1.5037    2   1   4         6
                61.69         14.78        1.5037    3  -1   4         6
                63.28         26.35        1.4696    3   0   0         6
                68.61          2.97        1.3679    2   0   8         6
                70.83          8.57        1.3304    1   0  10         6
                71.21          1.07        1.3242    2  -1   9         6
                74.56          5.48        1.2728    2   2   0         6
                79.55          1.87        1.2049    1   2   8         6
                79.55          2.11        1.2049   -1   3   8         6
                81.66          4.13        1.1791    0   2  10         6
                83.83          3.82        1.1540    1   3   4         6
                83.83          3.01        1.1540   -1   4   4         6
                87.34          2.68        1.1165    4  -2   6         6
                87.34          3.01        1.1165    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.