Plutonium
      Wyckoff R W G
      Crystal Structures 1 (1963) 7-83
      Second edition. Interscience Publishers, New York, New York
      Sample at T = 320 C
      Cubic closest packed, ccp, structure
      _database_code_amcsd 0011158

      CELL PARAMETERS:    4.6370   4.6370   4.6370   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     99.704
      Density (g/cm3):     16.253
      MAX. ABS. INTENSITY / VOLUME**2:      1607.528683    
      RIR:     32.206
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                33.47        100.00        2.6772    1   1   1         8
                38.84         48.88        2.3185    2   0   0         6
                56.10         29.92        1.6394    2   2   0        12
                66.93         32.25        1.3981    3   1   1        24
                70.33          9.04        1.3386    2   2   2         8
                83.37          3.88        1.1593    4   0   0         6
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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.