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 = 597 C
      _database_code_amcsd 0008584

      CELL PARAMETERS:    5.1067   5.1067  13.9928   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    316.019
      Density (g/cm3):      4.870
      MAX. ABS. INTENSITY / VOLUME**2:      49.46687940    
      RIR:      3.307
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.80         21.99        3.7383    0   1   2         6
                32.64        100.00        2.7436    1   0   4         6
                35.15         65.54        2.5533    1   1   0         6
                40.27          5.48        2.2397    2  -1   3         6
                40.27         14.05        2.2397    1   1   3         6
                42.89          1.01        2.1085    2   0   2         6
                48.72         34.66        1.8691    0   2   4         6
                53.19         17.80        1.7220    2  -1   6         6
                53.19         14.41        1.7220    1   1   6         6
                56.58         10.02        1.6265    0   1   8         6
                61.48         12.04        1.5082    2   1   4         6
                61.48         14.33        1.5082    3  -1   4         6
                63.06         24.24        1.4742    3   0   0         6
                68.38          3.37        1.3718    2   0   8         6
                70.60          6.93        1.3341    1   0  10         6
                70.98          1.50        1.3279    2  -1   9         6
                74.29          5.06        1.2767    2   2   0         6
                79.28          2.30        1.2085   -1   3   8         6
                79.28          2.09        1.2085    1   2   8         6
                81.38          3.29        1.1824    0   2  10         6
                83.52          2.80        1.1575   -1   4   4         6
                83.52          3.61        1.1575    1   3   4         6
                87.01          2.00        1.1199    4  -2   6         6
                87.01          2.37        1.1199    2   2   6         6
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.