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 = 1073 K
      _database_code_amcsd 0001405

      CELL PARAMETERS:    8.1393   8.1393   8.1393   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    539.208
      Density (g/cm3):      3.505
      MAX. ABS. INTENSITY / VOLUME**2:      17.34120934    
      RIR:      1.611
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.88         31.18        4.6992    1   1   1         8
                31.08         33.98        2.8777    2   2   0        12
                36.62        100.00        2.4541    3   1   1        24
                38.31          1.55        2.3496    2   2   2         8
                44.53         55.34        2.0348    4   0   0         6
                55.29          8.98        1.6614    4   2   2        24
                58.97          2.88        1.5664    3   3   3         8
                58.97         39.12        1.5664    5   1   1        24
                64.80         65.10        1.4388    4   4   0        12
                68.16          2.37        1.3758    5   3   1        48
                73.60          2.65        1.2869    6   2   0        24
                76.79          8.31        1.2412    5   3   3        24
                82.02          5.40        1.1748    4   4   4         8
                85.13          2.00        1.1397    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.