Tungsten
      Dubrovinsky L S, Saxena S K
      Physics and Chemistry of Minerals 24 (1997) 547-550
      Thermal expansion of periclase (MgO) and tungsten (W)
      to melting temperatures
      Sample: T = 2032 K
      _database_code_amcsd 0008080

      CELL PARAMETERS:    3.1926   3.1926   3.1926   90.000   90.000   90.000
      SPACE GROUP: Im3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     32.541
      Density (g/cm3):     18.760
      MAX. ABS. INTENSITY / VOLUME**2:      2211.450726    
      RIR:     38.384
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                39.94        100.00        2.2575    1   1   0        12
                57.76         15.85        1.5963    2   0   0         6
                72.52         29.75        1.3034    2   1   1        24
                86.15          8.91        1.1288    2   2   0        12
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.