(K.4Na.6)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: r54474, T = 700 C, P = 22.1 kbar, cell volume = 201.80 ang**3
      _database_code_amcsd 0003345

      CELL PARAMETERS:    5.8655   5.8655   5.8655   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    201.797
      Density (g/cm3):      2.135
      MAX. ABS. INTENSITY / VOLUME**2:      33.07827120    
      RIR:      5.044
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                26.32          1.64        3.3864    1   1   1         8
                30.48        100.00        2.9327    2   0   0         6
                43.65         61.72        2.0738    2   2   0        12
                54.17         18.62        1.6932    2   2   2         8
                63.43          7.63        1.4664    4   0   0         6
                72.00         18.94        1.3116    4   2   0        24
                80.16         13.00        1.1973    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.