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 = 19.9 GPa
      _database_code_amcsd 0008620

      CELL PARAMETERS:    7.8909   7.8909   7.8909   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    491.337
      Density (g/cm3):      4.957
      MAX. ABS. INTENSITY / VOLUME**2:      60.48934446    
      RIR:      3.973
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                19.48          4.65        4.5558    1   1   1         8
                32.08         78.86        2.7899    2   2   0        12
                37.81        100.00        2.3792    3   1   1        24
                46.01          3.60        1.9727    4   0   0         6
                50.41          9.57        1.8103    3   3   1        24
                57.19         23.32        1.6107    4   2   2        24
                61.01         34.24        1.5186    5   1   1        24
                61.01          4.18        1.5186    3   3   3         8
                67.10         39.60        1.3949    4   4   0        12
                70.62          1.21        1.3338    5   3   1        48
                76.32          7.77        1.2477    6   2   0        24
                79.68          9.32        1.2034    5   3   3        24
                88.49          1.17        1.1049    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.