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 = 293 K
      _database_code_amcsd 0001398

      CELL PARAMETERS:    8.0843   8.0843   8.0843   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    528.367
      Density (g/cm3):      3.576
      MAX. ABS. INTENSITY / VOLUME**2:      18.92226182    
      RIR:      1.723
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                19.01         28.48        4.6675    1   1   1         8
                31.29         33.56        2.8582    2   2   0        12
                36.88        100.00        2.4375    3   1   1        24
                38.58          1.51        2.3338    2   2   2         8
                44.85         55.12        2.0211    4   0   0         6
                55.70          9.96        1.6502    4   2   2        24
                59.41          3.28        1.5558    3   3   3         8
                59.41         41.81        1.5558    5   1   1        24
                65.29         71.72        1.4291    4   4   0        12
                68.69          2.31        1.3665    5   3   1        48
                74.19          3.33        1.2782    6   2   0        24
                77.41          9.91        1.2329    5   3   3        24
                82.70          6.13        1.1669    4   4   4         8
                85.84          2.14        1.1320    5   5   1        24
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.