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 = 850 C for 1 day
      _database_code_amcsd 0002479

      CELL PARAMETERS:    8.0841   8.0841   8.0841   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    528.318
      Density (g/cm3):      3.577
      MAX. ABS. INTENSITY / VOLUME**2:      19.19348832    
      RIR:      1.747
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                19.01         29.08        4.6674    1   1   1         8
                31.30         34.14        2.8582    2   2   0        12
                36.88        100.00        2.4374    3   1   1        24
                38.58          1.20        2.3337    2   2   2         8
                44.85         54.39        2.0210    4   0   0         6
                55.70          9.78        1.6502    4   2   2        24
                59.41          3.27        1.5558    3   3   3         8
                59.41         43.28        1.5558    5   1   1        24
                65.29         72.01        1.4291    4   4   0        12
                68.69          2.92        1.3665    5   3   1        48
                74.19          3.09        1.2782    6   2   0        24
                77.41         10.36        1.2328    5   3   3        24
                82.71          6.63        1.1668    4   4   4         8
                85.85          2.67        1.1320    5   5   1        24
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.