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 = 400 C
      _database_code_amcsd 0000926

      CELL PARAMETERS:    5.1080   5.1080  14.1287   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    319.253
      Density (g/cm3):      4.734
      MAX. ABS. INTENSITY / VOLUME**2:      43.41439202    
      RIR:      2.986
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.73         31.83        3.7492    0   1   2         6
                32.44        100.00        2.7602    1   0   4         6
                35.14         68.96        2.5540    1   1   0         6
                38.22          1.67        2.3548    0   0   6         2
                40.17          5.28        2.2451    2  -1   3         6
                40.17         17.44        2.2451    1   1   3         6
                41.32          1.64        2.1852    0   2   1         6
                42.84          1.64        2.1108    2   0   2         6
                48.57         35.50        1.8746    0   2   4         6
                52.89         26.68        1.7312    2  -1   6         6
                52.89         19.71        1.7312    1   1   6         6
                56.07          7.81        1.6402    0   1   8         6
                56.56          1.92        1.6270   -1   3   2         6
                61.34         11.40        1.5112    2   1   4         6
                61.34         16.20        1.5112    3  -1   4         6
                63.04         27.36        1.4746    3   0   0         6
                67.92          2.24        1.3801    2   0   8         6
                69.89          9.94        1.3459    1   0  10         6
                70.40          1.50        1.3374    1   1   9         6
                74.27          6.01        1.2770    2   2   0         6
                76.17          1.09        1.2497    0   3   6         6
                76.17          1.10        1.2497    3   0   6         6
                78.83          1.95        1.2142   -1   3   8         6
                78.83          1.47        1.2142    1   2   8         6
                79.25          1.20        1.2088    3   1   2         6
                80.70          5.09        1.1907    0   2  10         6
                83.39          2.69        1.1590   -1   4   4         6
                83.39          4.54        1.1590    1   3   4         6
                86.75          2.96        1.1226    4  -2   6         6
                86.75          3.75        1.1226    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.