Osmium
      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 0011188

      CELL PARAMETERS:    2.7352   2.7352   4.3190   90.000   90.000  120.000
      SPACE GROUP: P6_3/mmc  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     27.983
      Density (g/cm3):     22.574
      MAX. ABS. INTENSITY / VOLUME**2:      1724.856153    
      RIR:     24.880
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                37.99         25.28        2.3688    1   0   0         6
                41.83         25.22        2.1595    0   0   2         2
                43.58        100.00        2.0769    1   0   1        12
                57.77         13.11        1.5959    1   0   2        12
                68.62         14.28        1.3676    1   1   0         6
                77.60         14.00        1.2303    1   0   3        12
                81.22          2.01        1.1844    2   0   0         6
                83.71         14.66        1.1554    1   1   2        12
                84.90         10.54        1.1422    2   0   1        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.