Spinel
      Andreozzi G B, Princivalle F, Skogby H, Della Giusta A
      American Mineralogist 85 (2000) 1164-1171
      Cation ordering and structural variations with temperature in
      MgAl2O4 spinel: An X-ray single crystal study
      Sample: quenched from T = 1000 C for 1 day
      _database_code_amcsd 0002482

      CELL PARAMETERS:    8.0835   8.0835   8.0835   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    528.200
      Density (g/cm3):      3.579
      MAX. ABS. INTENSITY / VOLUME**2:      19.34001201    
      RIR:      1.759
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                19.02         27.78        4.6670    1   1   1         8
                31.30         33.81        2.8579    2   2   0        12
                36.88        100.00        2.4373    3   1   1        24
                38.58          1.21        2.3335    2   2   2         8
                44.85         54.03        2.0209    4   0   0         6
                55.71          9.85        1.6500    4   2   2        24
                59.41          3.40        1.5557    3   3   3         8
                59.41         42.45        1.5557    5   1   1        24
                65.30         71.86        1.4290    4   4   0        12
                68.70          2.80        1.3664    5   3   1        48
                74.19          3.17        1.2781    6   2   0        24
                77.42         10.34        1.2327    5   3   3        24
                82.71          6.61        1.1668    4   4   4         8
                85.86          2.53        1.1319    5   5   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.