(K.2Na.8)Cl
      Walker D, Verma P K, Cranswick L M D, Jones R L, Clark S M, Buhre S
      American Mineralogist 89 (2004) 204-210
      Halite-sylvite thermoelasticity
      Sample: r56385, T = 700 C, P = 27.2 kbar, cell volume = 186.49 ang**3
      _database_code_amcsd 0003391

      CELL PARAMETERS:    5.7133   5.7133   5.7133   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    186.492
      Density (g/cm3):      2.196
      MAX. ABS. INTENSITY / VOLUME**2:      32.31257603    
      RIR:      4.791
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                27.03          4.30        3.2986    1   1   1         8
                31.31        100.00        2.8567    2   0   0         6
                44.87         61.08        2.0200    2   2   0        12
                53.17          1.08        1.7226    3   1   1        24
                55.73         18.29        1.6493    2   2   2         8
                65.33          7.47        1.4283    4   0   0         6
                74.23         18.52        1.2775    4   2   0        24
                82.76         12.77        1.1662    4   2   2        24
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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.