(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: r54835, T = 650 C, P = 19.6 kbar, cell volume = 216.45 ang**3
      _database_code_amcsd 0003300

      CELL PARAMETERS:    6.0042   6.0042   6.0042   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    216.454
      Density (g/cm3):      2.090
      MAX. ABS. INTENSITY / VOLUME**2:      33.97859704    
      RIR:      5.295
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                29.76        100.00        3.0021    2   0   0         6
                42.59         62.28        2.1228    2   2   0        12
                52.82         18.90        1.7333    2   2   2         8
                61.81          7.78        1.5010    4   0   0         6
                70.09         19.32        1.3426    4   2   0        24
                77.95         13.21        1.2256    4   2   2        24
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.