PrO2
      Wyckoff R W G
      Crystal Structures 1 (1963) 239-444
      Second edition. Interscience Publishers, New York, New York
      Fluorite structure
      _database_code_amcsd 0011709

      CELL PARAMETERS:    5.4694   5.4694   5.4694   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    163.613
      Density (g/cm3):      7.018
      MAX. ABS. INTENSITY / VOLUME**2:      346.0500827    
      RIR:     16.055
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                28.26        100.00        3.1578    1   1   1         8
                32.75         28.34        2.7347    2   0   0         6
                46.99         48.72        1.9337    2   2   0        12
                55.74         36.16        1.6491    3   1   1        24
                58.45          6.47        1.5789    2   2   2         8
                68.64          6.01        1.3673    4   0   0         6
                75.82         11.94        1.2548    3   3   1        24
                78.15          7.26        1.2230    4   2   0        24
                87.34         10.44        1.1164    4   2   2        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.