(K.8Na.2)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: r55373, T = 550 C, P = 16.0 kbar, cell volume = 230.89 ang**3
      _database_code_amcsd 0003251

      CELL PARAMETERS:    6.1348   6.1348   6.1348   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    230.888
      Density (g/cm3):      2.052
      MAX. ABS. INTENSITY / VOLUME**2:      34.93206677    
      RIR:      5.544
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                29.11        100.00        3.0674    2   0   0         6
                41.64         62.81        2.1690    2   2   0        12
                51.61         19.16        1.7710    2   2   2         8
                60.35          7.91        1.5337    4   0   0         6
                68.39         19.67        1.3718    4   2   0        24
                75.99         13.43        1.2523    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.