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 = 900 C
      _database_code_amcsd 0004041

      CELL PARAMETERS:    8.1727   8.1727   8.1727   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    545.879
      Density (g/cm3):      3.560
      MAX. ABS. INTENSITY / VOLUME**2:      19.58972158    
      RIR:      1.792
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.81         26.55        4.7185    1   1   1         8
                30.95         33.48        2.8895    2   2   0        12
                36.46        100.00        2.4642    3   1   1        24
                44.33         49.14        2.0432    4   0   0         6
                55.05          9.01        1.6682    4   2   2        24
                58.70          3.32        1.5728    3   3   3         8
                58.70         36.83        1.5728    5   1   1        24
                64.50         60.54        1.4447    4   4   0        12
                67.84          2.24        1.3814    5   3   1        48
                73.25          2.71        1.2922    6   2   0        24
                76.42          8.38        1.2463    5   3   3        24
                81.62          4.85        1.1796    4   4   4         8
                84.70          1.71        1.1444    5   5   1        24
                89.80          3.93        1.0921    6   4   2        48
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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.