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: H-Cr, 1st run, T = 25 C
      _database_code_amcsd 0008800

      CELL PARAMETERS:    8.1085   8.1085   8.1085   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    533.116
      Density (g/cm3):      3.654
      MAX. ABS. INTENSITY / VOLUME**2:      20.69824105    
      RIR:      1.844
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.96         40.31        4.6814    1   1   1         8
                31.20         30.56        2.8668    2   2   0        12
                36.76        100.00        2.4448    3   1   1        24
                44.70         57.28        2.0271    4   0   0         6
                55.52          8.33        1.6551    4   2   2        24
                59.21          3.01        1.5605    3   3   3         8
                59.21         44.41        1.5605    5   1   1        24
                65.07         70.53        1.4334    4   4   0        12
                68.45          4.10        1.3706    5   3   1        48
                73.93          2.52        1.2821    6   2   0        24
                77.14         10.30        1.2365    5   3   3        24
                78.20          1.48        1.2224    6   2   2        24
                82.40          7.01        1.1704    4   4   4         8
                85.53          3.34        1.1354    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.