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 = 707 K on heating cycle, MgAl2O4
      _database_code_amcsd 0002108

      CELL PARAMETERS:    8.1114   8.1114   8.1114   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    533.692
      Density (g/cm3):      3.541
      MAX. ABS. INTENSITY / VOLUME**2:      18.51472518    
      RIR:      1.703
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.95         30.65        4.6831    1   1   1         8
                31.19         32.70        2.8678    2   2   0        12
                36.75        100.00        2.4457    3   1   1        24
                38.44          1.15        2.3416    2   2   2         8
                44.69         56.26        2.0279    4   0   0         6
                55.50          9.14        1.6557    4   2   2        24
                59.19          3.26        1.5610    3   3   3         8
                59.19         41.29        1.5610    5   1   1        24
                65.05         70.04        1.4339    4   4   0        12
                68.43          3.01        1.3711    5   3   1        48
                73.90          2.84        1.2825    6   2   0        24
                77.10          9.68        1.2370    5   3   3        24
                82.37          6.51        1.1708    4   4   4         8
                85.49          2.50        1.1358    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.