Hercynite
      Harrison R J, Redfern S A T, O'Neill H St C
      American Mineralogist 83 (1998) 1092-1099
      The temperature dependence of the cation distribution in synthetic hercynite
      (FeAl2O4) from in-situ neutron structure refinements
      Sample at T = 823 K
      _database_code_amcsd 0002036

      CELL PARAMETERS:    8.1802   8.1802   8.1802   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    547.386
      Density (g/cm3):      4.217
      MAX. ABS. INTENSITY / VOLUME**2:      39.72786967    
      RIR:      3.067
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                30.92         62.40        2.8921    2   2   0        12
                36.43        100.00        2.4664    3   1   1        24
                44.29         12.53        2.0451    4   0   0         6
                48.51          4.11        1.8767    3   3   1        24
                54.99         16.33        1.6698    4   2   2        24
                58.64          3.58        1.5743    3   3   3         8
                58.64         34.11        1.5743    5   1   1        24
                64.43         43.38        1.4461    4   4   0        12
                73.17          4.80        1.2934    6   2   0        24
                76.34          8.22        1.2475    5   3   3        24
                81.53          1.21        1.1807    4   4   4         8
                89.70          6.49        1.0931    6   4   2        48
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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.