(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: r53049, T = 750 C, P = 17.2 kbar, cell volume = 207.85 ang**3
      _database_code_amcsd 0003347

      CELL PARAMETERS:    5.9236   5.9236   5.9236   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    207.853
      Density (g/cm3):      2.073
      MAX. ABS. INTENSITY / VOLUME**2:      32.14163545    
      RIR:      5.048
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                26.05          1.65        3.4200    1   1   1         8
                30.17        100.00        2.9618    2   0   0         6
                43.20         62.10        2.0943    2   2   0        12
                53.59         18.80        1.7100    2   2   2         8
                62.74          7.72        1.4809    4   0   0         6
                71.19         19.16        1.3246    4   2   0        24
                79.22         13.11        1.2091    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.