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: He8a/h
      _database_code_amcsd 0002880

      CELL PARAMETERS:    8.1406   8.1406   8.1406   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    539.472
      Density (g/cm3):      4.088
      MAX. ABS. INTENSITY / VOLUME**2:      35.88770123    
      RIR:      2.858
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.88          1.37        4.7000    1   1   1         8
                31.07         55.13        2.8781    2   2   0        12
                36.61        100.00        2.4545    3   1   1        24
                44.52         18.29        2.0352    4   0   0         6
                48.76          3.02        1.8676    3   3   1        24
                55.28         15.92        1.6617    4   2   2        24
                58.95          3.81        1.5667    3   3   3         8
                58.95         37.81        1.5667    5   1   1        24
                64.78         51.89        1.4391    4   4   0        12
                73.59          5.19        1.2871    6   2   0        24
                76.78          9.78        1.2414    5   3   3        24
                82.01          1.99        1.1750    4   4   4         8
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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.