Ilmenite
      Wechsler B A, Prewitt C T
      American Mineralogist 69 (1984) 176-185
      Crystal structure of ilmenite (FeTiO3) at high temperature and high pressure
      T = 1050 C
      _database_code_amcsd 0000929

      CELL PARAMETERS:    5.1412   5.1412  14.2250   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    325.621
      Density (g/cm3):      4.641
      MAX. ABS. INTENSITY / VOLUME**2:      40.32836562    
      RIR:      2.829
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.57         31.26        3.7739    0   1   2         6
                32.21        100.00        2.7787    1   0   4         6
                34.90         67.37        2.5706    1   1   0         6
                37.95          1.44        2.3708    0   0   6         2
                39.89          5.85        2.2599    2  -1   3         6
                39.89         15.64        2.2599    1   1   3         6
                41.04          1.57        2.1994    0   2   1         6
                42.55          1.48        2.1246    2   0   2         6
                48.23         32.92        1.8870    0   2   4         6
                52.51         23.63        1.7428    2  -1   6         6
                52.51         17.32        1.7428    1   1   6         6
                55.66          7.20        1.6513    0   1   8         6
                56.17          1.69        1.6376   -1   3   2         6
                60.90          9.78        1.5211    2   1   4         6
                60.90         14.04        1.5211    3  -1   4         6
                62.59         23.35        1.4841    3   0   0         6
                67.40          1.93        1.3893    2   0   8         6
                69.35          7.87        1.3550    1   0  10         6
                69.86          1.69        1.3464    1   1   9         6
                73.71          4.73        1.2853    2   2   0         6
                78.21          1.16        1.2223    1   2   8         6
                78.21          1.56        1.2223   -1   3   8         6
                80.05          3.74        1.1987    0   2  10         6
                82.73          1.98        1.1665   -1   4   4         6
                82.73          3.40        1.1665    1   3   4         6
                86.04          2.09        1.1299    4  -2   6         6
                86.04          2.66        1.1299    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.