Gahnite
      Levy D, Pavese A, Sani A, Pischedda V
      Physics and Chemistry of Minerals 28 (2001) 612-618
      Structure and compressibility of synthetic ZnAl2O4 (gahnite) under
      high-pressure conditions, from synchrotron X-ray powder diffraction
      Sample: P = 17.7 GPa
      _database_code_amcsd 0008618

      CELL PARAMETERS:    7.9090   7.9090   7.9090   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    494.726
      Density (g/cm3):      4.923
      MAX. ABS. INTENSITY / VOLUME**2:      60.11656235    
      RIR:      3.976
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                19.44          4.69        4.5663    1   1   1         8
                32.01         78.71        2.7963    2   2   0        12
                37.72        100.00        2.3847    3   1   1        24
                45.90          3.62        1.9772    4   0   0         6
                50.29          9.55        1.8144    3   3   1        24
                57.05         23.35        1.6144    4   2   2        24
                60.86         34.23        1.5221    5   1   1        24
                60.86          4.19        1.5221    3   3   3         8
                66.93         39.72        1.3981    4   4   0        12
                70.43          1.22        1.3369    5   3   1        48
                76.12          7.79        1.2505    6   2   0        24
                79.46          9.33        1.2061    5   3   3        24
                88.23          1.17        1.1075    7   1   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.