Lanthanum
      Wyckoff R W G
      Crystal Structures 1 (1963) 7-83
      Second edition. Interscience Publishers, New York, New York
      Hexagonal closest packed, hcp, structure
      _database_code_amcsd 0011180

      CELL PARAMETERS:    3.7500   3.7500   6.0700   90.000   90.000  120.000
      SPACE GROUP: P6_3/mmc  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     73.923
      Density (g/cm3):      6.240
      MAX. ABS. INTENSITY / VOLUME**2:      327.6988726    
      RIR:     17.101
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                27.46         23.72        3.2476    1   0   0         6
                29.43         26.22        3.0350    0   0   2         2
                31.24        100.00        2.8635    1   0   1        12
                40.69         15.20        2.2174    1   0   2        12
                48.56         17.06        1.8750    1   1   0         6
                53.35         18.49        1.7173    1   0   3        12
                56.69          2.49        1.6238    2   0   0         6
                57.80         18.56        1.5951    1   1   2        12
                58.87         13.03        1.5686    2   0   1        12
                61.06          2.54        1.5175    0   0   4         2
                65.16          3.01        1.4318    2   0   2        12
                68.21          2.55        1.3748    1   0   4        12
                75.00          5.48        1.2664    2   0   3        12
                79.70          2.98        1.2031    2   1   1        24
                81.62          5.51        1.1796    1   1   4        12
                85.37          3.60        1.1371    1   0   5        12
                88.11          1.10        1.1087    2   0   4        12
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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.