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 = 994 C
      _database_code_amcsd 0008594

      CELL PARAMETERS:    5.1393   5.1393  14.0457   90.000   90.000  120.000
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    321.275
      Density (g/cm3):      4.791
      MAX. ABS. INTENSITY / VOLUME**2:      45.60018168    
      RIR:      3.099
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.67         24.93        3.7594    0   1   2         6
                32.48        100.00        2.7568    1   0   4         6
                34.92         66.64        2.5696    1   1   0         6
                40.03         19.23        2.2527    1   1   3        12
                42.62          1.19        2.1214    2   0   2         6
                48.43         33.87        1.8797    0   2   4         6
                52.91         33.67        1.7305    1   1   6        12
                56.23          1.43        1.6359    1   2   2        12
                56.33          8.83        1.6332    0   1   8         6
                61.08         24.59        1.5171    2   1   4        12
                62.62         23.11        1.4836    3   0   0         6
                68.01          2.84        1.3784    2   0   8         6
                70.28          6.83        1.3395    1   0  10         6
                70.61          1.45        1.3339    1   1   9        12
                73.74          4.44        1.2848    2   2   0         6
                78.79          3.47        1.2147    1   2   8        12
                80.94          3.02        1.1878    0   2  10         6
                82.90          5.31        1.1645    1   3   4        12
                86.39          4.07        1.1263    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.