Ilmenite
      Harrison R J, Redfern S A T
      Physics and Chemistry of Minerals 28 (2001) 399-412
      Short- and long-range ordering in the ilmenite-hematite solid solution
      Sample: ilm60, T = 999 C
      _database_code_amcsd 0008575

      CELL PARAMETERS:    5.1322   5.1322  14.0326   90.000   90.000  120.000
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    320.092
      Density (g/cm3):      4.821
      MAX. ABS. INTENSITY / VOLUME**2:      45.88740596    
      RIR:      3.099
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.70         25.64        3.7547    0   1   2         6
                32.52        100.00        2.7537    1   0   4         6
                34.97         67.20        2.5661    1   1   0         6
                40.08         19.06        2.2498    1   1   3        12
                42.68          1.26        2.1186    2   0   2         6
                48.49         33.70        1.8773    0   2   4         6
                52.97         34.30        1.7285    1   1   6        12
                56.31          1.49        1.6337    1   2   2        12
                56.39          8.55        1.6316    0   1   8         6
                61.17         24.40        1.5151    2   1   4        12
                62.71         22.99        1.4815    3   0   0         6
                68.10          2.73        1.3769    2   0   8         6
                70.35          6.93        1.3382    1   0  10         6
                70.70          1.42        1.3325    1   1   9        12
                73.86          4.44        1.2830    2   2   0         6
                78.90          3.34        1.2132    1   2   8        12
                81.04          3.07        1.1865    0   2  10         6
                83.04          5.26        1.1630    1   3   4        12
                86.52          4.11        1.1249    2   2   6        12
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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.