Zirconium
      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 0011201

      CELL PARAMETERS:    3.2320   3.2320   5.1470   90.000   90.000  120.000
      SPACE GROUP: P6_3/mmc  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     46.562
      Density (g/cm3):      6.506
      MAX. ABS. INTENSITY / VOLUME**2:      262.4193155    
      RIR:     13.134
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                31.97         24.40        2.7990    1   0   0         6
                34.86         25.47        2.5735    0   0   2         2
                36.54        100.00        2.4589    1   0   1        12
                48.02         14.34        1.8944    1   0   2        12
                56.99         16.16        1.6160    1   1   0         6
                63.61         16.57        1.4627    1   0   3        12
                66.85          2.33        1.3995    2   0   0         6
                68.57         17.05        1.3686    1   1   2        12
                69.62         12.15        1.3505    2   0   1        12
                73.61          2.24        1.2867    0   0   4         2
                77.66          2.83        1.2295    2   0   2        12
                82.51          2.36        1.1691    1   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.