Spinel
      Nestola F, Boffa Ballaran T, Balic-Zunic T, Princivalle F, Secco L, Dal Negro A
      American Mineralogist 92 (2007) 1838-1843
      Comparative compressibility and structural behavior of spinel MgAl2O4 at high
      pressures: the independency on the degree of cation order
      Locality: Sri Lanka
      Sample: P = 2.92 GPa, ordered
      _database_code_amcsd 0004467

      CELL PARAMETERS:    8.0494   8.0494   8.0494   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    521.544
      Density (g/cm3):      3.623
      MAX. ABS. INTENSITY / VOLUME**2:      18.77280095    
      RIR:      1.687
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                19.10         35.83        4.6473    1   1   1         8
                31.43         34.37        2.8459    2   2   0        12
                37.04        100.00        2.4270    3   1   1        24
                38.75          1.05        2.3237    2   2   2         8
                45.05         56.77        2.0124    4   0   0         6
                55.96          9.13        1.6431    4   2   2        24
                59.69          2.80        1.5491    3   3   3         8
                59.69         45.38        1.5491    5   1   1        24
                65.61         71.46        1.4229    4   4   0        12
                69.03          3.45        1.3606    5   3   1        48
                74.56          2.71        1.2727    6   2   0        24
                77.81         10.17        1.2275    5   3   3        24
                78.88          1.03        1.2135    6   2   2        24
                83.14          6.66        1.1618    4   4   4         8
                86.31          3.14        1.1271    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.