(K.6Na.4)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: als12k60, T = 550 C, P = 0.0 kbar, cell volume = 240.18 ang**3
      _database_code_amcsd 0003283

      CELL PARAMETERS:    6.2160   6.2160   6.2160   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    240.178
      Density (g/cm3):      1.883
      MAX. ABS. INTENSITY / VOLUME**2:      30.66776147    
      RIR:      5.302
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                28.72        100.00        3.1080    2   0   0         6
                41.07         63.62        2.1977    2   2   0        12
                50.89         19.56        1.7944    2   2   2         8
                59.48          8.11        1.5540    4   0   0         6
                67.37         20.15        1.3899    4   2   0        24
                74.83         13.70        1.2688    4   2   2        24
                89.11          3.95        1.0988    4   4   0        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.