Spinel
      Martignago F, Dal Negro A, Carbonin S
      Physics and Chemistry of Minerals 30 (2003) 401-408
      How Cr3+ and Fe3+ affect Mg-Al order-disorder transformation at high temperature
      in natural spinels
      Sample: L-Fe, 1st run, T = 25 C
      _database_code_amcsd 0008815

      CELL PARAMETERS:    8.0987   8.0987   8.0987   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    531.185
      Density (g/cm3):      3.608
      MAX. ABS. INTENSITY / VOLUME**2:      19.67517232    
      RIR:      1.776
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.98         37.61        4.6758    1   1   1         8
                31.24         32.33        2.8633    2   2   0        12
                36.81        100.00        2.4418    3   1   1        24
                44.76         57.53        2.0247    4   0   0         6
                55.59          8.85        1.6531    4   2   2        24
                59.29          2.94        1.5586    3   3   3         8
                59.29         45.46        1.5586    5   1   1        24
                65.16         72.56        1.4317    4   4   0        12
                68.55          3.79        1.3689    5   3   1        48
                74.03          2.70        1.2805    6   2   0        24
                77.25         10.47        1.2350    5   3   3        24
                78.31          1.19        1.2209    6   2   2        24
                82.52          7.05        1.1689    4   4   4         8
                85.66          3.31        1.1340    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.