Spinel
Diffraction data computed using the structure from the paper listed below,
along with the cell parameters refined from the powder pattern for R050392
      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

      CELL PARAMETERS:   8.091119   8.091119   8.091119   90.00000   90.00000   90.00000
      ALTERNATE SETTING FOR SPACE GROUP: Fd3m
      X-RAY WAVELENGTH:     1.541838
               2-THETA      INTENSITY    D-SPACING   H   K   L
                18.95         28.48        4.6714    1   1   1
                31.21         33.56        2.8606    2   2   0
                36.78        100.00        2.4396    3   1   1
                38.48          1.51        2.3357    2   2   2
                44.73         55.12        2.0228    4   0   0
                55.57          9.96        1.6516    4   2   2
                59.26          3.28        1.5571    3   3   3
                59.26         41.81        1.5571    5   1   1
                65.13         71.72        1.4303    4   4   0
                68.52          2.31        1.3676    5   3   1
                74.01          3.33        1.2793    6   2   0
                77.22          9.91        1.2339    5   3   3
                82.50          6.13        1.1679    4   4   4
                85.63          2.14        1.1330    5   5   1
                85.63          2.14        1.1330    5   5   1
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.