Hercynite
      Waerenborgh J C, Figueiredo M O, Cabral J M P, Pereira L C J
      Physics and Chemistry of Minerals 21 (1994) 460-468
      Powder XRD structure refinements and 57Fe Mossbauer effect study
      of synthetic Zn1-xFexAl2O4 (o<x<=1) spinels annealed at different temperatures
      Sample: 0.6, annealed at 725 degrees C for 48 hours, then quenched
      _database_code_amcsd 0007892

      CELL PARAMETERS:    8.1288   8.1288   8.1288   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    537.130
      Density (g/cm3):      4.393
      MAX. ABS. INTENSITY / VOLUME**2:      48.38803911    
      RIR:      3.587
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.91          1.19        4.6932    1   1   1         8
                31.12         69.21        2.8740    2   2   0        12
                36.67        100.00        2.4509    3   1   1        24
                44.59          7.57        2.0322    4   0   0         6
                48.84          6.77        1.8649    3   3   1        24
                55.37         20.94        1.6593    4   2   2        24
                59.05          4.20        1.5644    3   3   3         8
                59.05         35.68        1.5644    5   1   1        24
                64.89         45.02        1.4370    4   4   0        12
                73.71          7.08        1.2853    6   2   0        24
                76.91          9.71        1.2396    5   3   3        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.