Ilmenite
      Wechsler B A, Prewitt C T
      American Mineralogist 69 (1984) 176-185
      Crystal structure of ilmenite (FeTiO3) at high temperature and high pressure
      P = 34.6 kbar
      _database_code_amcsd 0000933

      CELL PARAMETERS:    5.0635   5.0635  13.9518   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    309.786
      Density (g/cm3):      4.879
      MAX. ABS. INTENSITY / VOLUME**2:      45.42786732    
      RIR:      3.032
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.97         33.00        3.7125    0   1   2         6
                32.81        100.00        2.7297    1   0   4         6
                35.46         70.75        2.5317    1   1   0         6
                38.72          1.84        2.3253    0   0   6         2
                40.57          5.15        2.2236    2  -1   3         6
                40.57         18.34        2.2236    1   1   3         6
                41.70          1.59        2.1660    0   2   1         6
                43.25          1.78        2.0917    2   0   2         6
                49.08         37.05        1.8563    0   2   4         6
                53.51         28.21        1.7126    2  -1   6         6
                53.51         21.43        1.7126    1   1   6         6
                56.81          7.92        1.6205    0   1   8         6
                57.12          2.02        1.6125   -1   3   2         6
                61.99         12.45        1.4970    2   1   4         6
                61.99         17.29        1.4970    3  -1   4         6
                63.66         29.74        1.4617    3   0   0         6
                68.78          2.35        1.3649    2   0   8         6
                70.88         11.12        1.3295    1   0  10         6
                71.34          1.35        1.3221    1   1   9         6
                75.03          6.79        1.2659    2   2   0         6
                77.07          1.30        1.2375    0   3   6         6
                77.07          1.31        1.2375    3   0   6         6
                78.27          1.07        1.2214    4  -2   3         6
                79.83          2.10        1.2014   -1   3   8         6
                79.83          1.61        1.2014    1   2   8         6
                80.10          1.37        1.1981    3   1   2         6
                81.83          5.88        1.1771    0   2  10         6
                84.33          3.14        1.1484   -1   4   4         6
                84.33          5.16        1.1484    1   3   4         6
                87.80          3.61        1.1118    4  -2   6         6
                87.80          4.47        1.1118    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.