Spinel
      Martignago F, Andreozzi G B, Dal Negro A
      American Mineralogist 91 (2006) 306-312
      Thermodynamics and kinetics of cation ordering in natural and synthetic
      Mg(Al,Fe3+)2O4 spinels from in situ high-temperature X-ray diffraction
      Locality: synthetic
      Sample: MgFe14, T = 550 C
      _database_code_amcsd 0004036

      CELL PARAMETERS:    8.1447   8.1447   8.1447   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    540.288
      Density (g/cm3):      3.597
      MAX. ABS. INTENSITY / VOLUME**2:      20.34449705    
      RIR:      1.842
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.87         26.77        4.7023    1   1   1         8
                31.06         33.74        2.8796    2   2   0        12
                36.59        100.00        2.4557    3   1   1        24
                44.50         49.71        2.0362    4   0   0         6
                55.25          9.37        1.6625    4   2   2        24
                58.92          3.35        1.5674    3   3   3         8
                58.92         39.25        1.5674    5   1   1        24
                64.75         64.29        1.4398    4   4   0        12
                68.11          2.43        1.3767    5   3   1        48
                73.54          2.91        1.2878    6   2   0        24
                76.73          9.20        1.2421    5   3   3        24
                77.78          1.01        1.2279    6   2   2        24
                81.96          5.37        1.1756    4   4   4         8
                85.06          2.01        1.1405    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.