Ilmenite
      Wechsler B A, Prewitt C T
      American Mineralogist 69 (1984) 176-185
      Crystal structure of ilmenite (FeTiO3) at high temperature and high pressure
      room temperature after heating
      _database_code_amcsd 0000930

      CELL PARAMETERS:    5.0889   5.0889  14.0933   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    316.076
      Density (g/cm3):      4.781
      MAX. ABS. INTENSITY / VOLUME**2:      45.11446291    
      RIR:      3.072
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.81         32.09        3.7365    0   1   2         6
                32.54        100.00        2.7520    1   0   4         6
                35.27         69.66        2.5445    1   1   0         6
                38.32          1.81        2.3489    0   0   6         2
                40.31          5.06        2.2373    2  -1   3         6
                40.31         18.36        2.2373    1   1   3         6
                41.48          1.63        2.1771    0   2   1         6
                43.01          1.75        2.1031    2   0   2         6
                48.74         36.87        1.8683    0   2   4         6
                53.06         28.47        1.7259    2  -1   6         6
                53.06         21.16        1.7259    1   1   6         6
                56.23          8.11        1.6358    0   1   8         6
                56.79          2.04        1.6211   -1   3   2         6
                61.58         12.38        1.5059    2   1   4         6
                61.58         17.39        1.5059    3  -1   4         6
                63.31         29.73        1.4690    3   0   0         6
                68.15          2.41        1.3760    2   0   8         6
                70.10         11.25        1.3424    1   0  10         6
                70.63          1.40        1.3336    1   1   9         6
                74.60          6.80        1.2722    2   2   0         6
                76.48          1.29        1.2455    0   3   6         6
                76.48          1.30        1.2455    3   0   6         6
                77.77          1.10        1.2280    4  -2   3         6
                79.13          2.17        1.2103   -1   3   8         6
                79.13          1.66        1.2103    1   2   8         6
                79.60          1.38        1.2043    3   1   2         6
                80.98          5.98        1.1873    0   2  10         6
                83.76          3.16        1.1548   -1   4   4         6
                83.76          5.25        1.1548    1   3   4         6
                87.12          3.57        1.1187    4  -2   6         6
                87.12          4.50        1.1187    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.