Spinel
      Carbonin S, Martignago F, Menegazzo G, Dal Negro A
      Physics and Chemistry of Minerals 29 (2002) 503-514
      X-ray single-crystal study of spinels: in situ heating
      Sample: NAT, Heating, 4th run, T = 900 C
      _database_code_amcsd 0008674

      CELL PARAMETERS:    8.1592   8.1592   8.1592   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    543.179
      Density (g/cm3):      3.522
      MAX. ABS. INTENSITY / VOLUME**2:      18.14348324    
      RIR:      1.678
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.84         31.22        4.7107    1   1   1         8
                31.00         32.10        2.8847    2   2   0        12
                36.52        100.00        2.4601    3   1   1        24
                44.41         54.04        2.0398    4   0   0         6
                55.15          8.44        1.6655    4   2   2        24
                58.81          3.16        1.5702    3   3   3         8
                58.81         37.31        1.5702    5   1   1        24
                64.62         62.31        1.4424    4   4   0        12
                67.97          2.68        1.3792    5   3   1        48
                73.39          2.48        1.2901    6   2   0        24
                76.57          8.26        1.2443    5   3   3        24
                81.78          5.34        1.1777    4   4   4         8
                84.87          1.96        1.1425    5   5   1        24
                89.99          3.66        1.0903    6   4   2        48
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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.