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 = 25.4 kbar
      _database_code_amcsd 0000932

      CELL PARAMETERS:    5.0691   5.0691  13.9849   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    311.209
      Density (g/cm3):      4.856
      MAX. ABS. INTENSITY / VOLUME**2:      45.28490716    
      RIR:      3.036
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.93         32.56        3.7180    0   1   2         6
                32.75        100.00        2.7349    1   0   4         6
                35.42         70.31        2.5345    1   1   0         6
                38.63          1.71        2.3308    0   0   6         2
                40.51          5.23        2.2267    2  -1   3         6
                40.51         18.14        2.2267    1   1   3         6
                41.65          1.61        2.1684    0   2   1         6
                43.20          1.67        2.0942    2   0   2         6
                49.00         37.20        1.8590    0   2   4         6
                53.40         27.60        1.7156    2  -1   6         6
                53.40         21.11        1.7156    1   1   6         6
                56.68          8.19        1.6241    0   1   8         6
                57.05          1.95        1.6144   -1   3   2         6
                61.90         12.43        1.4990    2   1   4         6
                61.90         17.28        1.4990    3  -1   4         6
                63.58         29.44        1.4633    3   0   0         6
                68.63          2.41        1.3674    2   0   8         6
                70.70         10.96        1.3325    1   0  10         6
                71.17          1.40        1.3247    1   1   9         6
                74.94          6.69        1.2673    2   2   0         6
                76.93          1.23        1.2393    0   3   6         6
                76.93          1.24        1.2393    3   0   6         6
                78.16          1.04        1.2229    4  -2   3         6
                79.67          2.15        1.2035   -1   3   8         6
                79.67          1.64        1.2035    1   2   8         6
                79.99          1.36        1.1995    3   1   2         6
                81.63          5.71        1.1794    0   2  10         6
                84.21          3.07        1.1498   -1   4   4         6
                84.21          5.10        1.1498    1   3   4         6
                87.65          3.51        1.1134    4  -2   6         6
                87.65          4.32        1.1134    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.