Spinel
      Peterson R C, Lager G A, Hitterman R L
      American Mineralogist 76 (1991) 1455-1458
      A time-of-flight neutron powder diffraction study of MgAl2O4 at temperatures
      up to 1273 K
      sample W, T = 1273 K
      _database_code_amcsd 0001410

      CELL PARAMETERS:    8.1541   8.1541   8.1541   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    542.159
      Density (g/cm3):      3.485
      MAX. ABS. INTENSITY / VOLUME**2:      17.11652102    
      RIR:      1.599
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.85         28.91        4.7078    1   1   1         8
                31.02         33.93        2.8829    2   2   0        12
                36.55        100.00        2.4586    3   1   1        24
                38.24          1.63        2.3539    2   2   2         8
                44.44         54.07        2.0385    4   0   0         6
                55.18          9.05        1.6644    4   2   2        24
                58.85          2.99        1.5693    3   3   3         8
                58.85         37.13        1.5693    5   1   1        24
                64.66         62.87        1.4415    4   4   0        12
                68.02          2.01        1.3783    5   3   1        48
                73.45          2.71        1.2893    6   2   0        24
                76.63          7.91        1.2435    5   3   3        24
                81.84          4.94        1.1769    4   4   4         8
                84.94          1.63        1.1418    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.