Spinel
      Redfern S A T, Harrison R J, O'Neill H St C, Wood D R R
      American Mineralogist 84 (1999) 299-310
      Thermodynamics and kinetics of cation ordering in MgAl2O4 spinel up to 1600 C
      from in situ neutron diffraction
      Data collected at IPNS, Argonne National Laboratory,
      T = 299 K on heating cycle, MgAl2O4
      _database_code_amcsd 0002106

      CELL PARAMETERS:    8.0836   8.0836   8.0836   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    528.220
      Density (g/cm3):      3.577
      MAX. ABS. INTENSITY / VOLUME**2:      19.28176542    
      RIR:      1.755
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                19.02         29.72        4.6671    1   1   1         8
                31.30         32.78        2.8580    2   2   0        12
                36.88        100.00        2.4373    3   1   1        24
                38.58          1.16        2.3335    2   2   2         8
                44.85         56.10        2.0209    4   0   0         6
                55.71          9.66        1.6501    4   2   2        24
                59.41         43.08        1.5557    5   1   1        24
                59.41          3.40        1.5557    3   3   3         8
                65.30         73.49        1.4290    4   4   0        12
                68.69          2.97        1.3664    5   3   1        48
                74.19          3.19        1.2781    6   2   0        24
                77.42         10.56        1.2327    5   3   3        24
                82.71          6.86        1.1668    4   4   4         8
                85.85          2.62        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.