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 = 600 C
      _database_code_amcsd 0000927

      CELL PARAMETERS:    5.1182   5.1182  14.1566   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    321.162
      Density (g/cm3):      4.706
      MAX. ABS. INTENSITY / VOLUME**2:      42.62778327    
      RIR:      2.950
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.68         31.22        3.7567    0   1   2         6
                32.37        100.00        2.7657    1   0   4         6
                35.06         68.16        2.5591    1   1   0         6
                38.14          1.57        2.3594    0   0   6         2
                40.08          5.46        2.2496    2  -1   3         6
                40.08         16.91        2.2496    1   1   3         6
                41.23          1.61        2.1896    0   2   1         6
                42.75          1.60        2.1150    2   0   2         6
                48.46         34.57        1.8784    0   2   4         6
                52.77         25.61        1.7347    2  -1   6         6
                52.77         18.86        1.7347    1   1   6         6
                55.95          7.64        1.6434    0   1   8         6
                56.44          1.85        1.6303   -1   3   2         6
                61.21         15.47        1.5142    3  -1   4         6
                61.21         10.86        1.5142    2   1   4         6
                62.90         26.10        1.4775    3   0   0         6
                67.76          2.17        1.3828    2   0   8         6
                69.73          9.21        1.3486    1   0  10         6
                70.24          1.58        1.3401    1   1   9         6
                74.10          5.56        1.2795    2   2   0         6
                78.64          1.84        1.2166   -1   3   8         6
                78.64          1.38        1.2166    1   2   8         6
                79.06          1.09        1.2112    3   1   2         6
                80.51          4.63        1.1930    0   2  10         6
                83.19          2.46        1.1613   -1   4   4         6
                83.19          4.16        1.1613    1   3   4         6
                86.53          2.65        1.1248    4  -2   6         6
                86.53          3.38        1.1248    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.