Sodium
      Wyckoff R W G
      Crystal Structures 1 (1963) 7-83
      Second edition. Interscience Publishers, New York, New York
      Sample at T = 5 K
      Body centered cubic, bcc, structure
      _database_code_amcsd 0011222

      CELL PARAMETERS:    4.2250   4.2250   4.2250   90.000   90.000   90.000
      SPACE GROUP: Im3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     75.419
      Density (g/cm3):      1.012
      MAX. ABS. INTENSITY / VOLUME**2:      16.29480734    
      RIR:      5.242
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                29.91        100.00        2.9875    1   1   0        12
                42.81         16.60        2.1125    2   0   0         6
                53.10         30.32        1.7248    2   1   1        24
                62.14          8.03        1.4938    2   2   0        12
                70.48          9.41        1.3361    3   1   0        24
                78.41          2.00        1.2197    2   2   2         8
                86.11          8.25        1.1292    3   2   1        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.