Hercynite
      Andreozzi G B, Lucchesi S
      American Mineralogist 87 (2002) 1113-1120
      Intersite distribution of Fe2+ and Mg in the spinel (sensu stricto) -
      hercynite series by single-crystal X-ray diffraction
      Sample: He4a/c
      _database_code_amcsd 0002875

      CELL PARAMETERS:    8.1006   8.1006   8.1006   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    531.559
      Density (g/cm3):      3.707
      MAX. ABS. INTENSITY / VOLUME**2:      22.95597881    
      RIR:      2.016
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.98         15.07        4.6769    1   1   1         8
                31.23         41.32        2.8640    2   2   0        12
                36.80        100.00        2.4424    3   1   1        24
                44.75         39.82        2.0252    4   0   0         6
                55.58         11.81        1.6535    4   2   2        24
                59.27          3.41        1.5590    3   3   3         8
                59.27         41.46        1.5590    5   1   1        24
                65.14         64.70        1.4320    4   4   0        12
                68.53          1.39        1.3693    5   3   1        48
                74.01          3.80        1.2808    6   2   0        24
                77.23         10.12        1.2353    5   3   3        24
                82.50          4.62        1.1692    4   4   4         8
                85.63          1.70        1.1343    5   5   1        24
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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.