Europium
      Spedding F H, Daane A H, Herrmann K W
      Acta Crystallographica 9 (1956) 559-563
      The crystal structures and lattice parameters of high-purity scandium,
      yttrium and the rare earth metals
      Locality: synthetic
      Note: sample 98-99% pure
      _database_code_amcsd 0009172

      CELL PARAMETERS:    4.6060   4.6060   4.6060   90.000   90.000   90.000
      SPACE GROUP: Im3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     97.717
      Density (g/cm3):      5.164
      MAX. ABS. INTENSITY / VOLUME**2:      464.9254375    
      RIR:     29.315
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                27.38        100.00        3.2569    1   1   0        12
                39.11         18.30        2.3030    2   0   0         6
                48.41         36.94        1.8804    2   1   1        24
                56.51         10.78        1.6285    2   2   0        12
                63.91         13.80        1.4565    3   1   0        24
                70.87          3.16        1.3296    2   2   2         8
                77.55         13.79        1.2310    3   2   1        48
                84.06          1.33        1.1515    4   0   0         6
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.