(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: r57152, T = 450 C, P = 15.9 kbar, cell volume = 203.69 ang**3
      _database_code_amcsd 0003313

      CELL PARAMETERS:    5.8838   5.8838   5.8838   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    203.692
      Density (g/cm3):      2.116
      MAX. ABS. INTENSITY / VOLUME**2:      32.77987536    
      RIR:      5.045
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                26.23          1.64        3.3970    1   1   1         8
                30.38        100.00        2.9419    2   0   0         6
                43.50         61.84        2.0802    2   2   0        12
                53.99         18.67        1.6985    2   2   2         8
                63.21          7.66        1.4710    4   0   0         6
                71.74         19.01        1.3157    4   2   0        24
                79.86         13.03        1.2010    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.