(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: r55493, T = 450 C, P = 19.0 kbar, cell volume = 224.28 ang**3
      _database_code_amcsd 0003240

      CELL PARAMETERS:    6.0757   6.0757   6.0757   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    224.279
      Density (g/cm3):      2.112
      MAX. ABS. INTENSITY / VOLUME**2:      35.94273681    
      RIR:      5.541
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                29.40        100.00        3.0378    2   0   0         6
                42.06         62.44        2.1481    2   2   0        12
                52.15         18.98        1.7539    2   2   2         8
                61.00          7.82        1.5189    4   0   0         6
                69.15         19.44        1.3586    4   2   0        24
                76.87         13.30        1.2402    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.