Gahnite
      Popovic J, Tkalcec E, Grzeta B, Kurajica S, Rakvin B
      American Mineralogist 94 (2009) 771-776
      Inverse spinel structure of Co-doped gahnite
      Note: Sample S1, inversion parameter = .037, (Zn.96Co.04)Al2O4
      _database_code_amcsd 0004940

      CELL PARAMETERS:    8.0863   8.0863   8.0863   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    528.749
      Density (g/cm3):      4.600
      MAX. ABS. INTENSITY / VOLUME**2:      55.38958749    
      RIR:      3.921
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                19.01          3.68        4.6686    1   1   1         8
                31.29         74.56        2.8589    2   2   0        12
                36.87        100.00        2.4381    3   1   1        24
                44.83          5.25        2.0216    4   0   0         6
                49.11          8.23        1.8551    3   3   1        24
                55.69         22.22        1.6506    4   2   2        24
                59.39          4.17        1.5562    3   3   3         8
                59.39         34.55        1.5562    5   1   1        24
                65.27         42.80        1.4295    4   4   0        12
                74.16          7.26        1.2786    6   2   0        24
                77.39          9.24        1.2331    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.