Sylvite
      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: msl515033, T = 200 C, P = 0.0 kbar, cell volume = 254.37 ang**3
      _database_code_amcsd 0003208

      CELL PARAMETERS:    6.3361   6.3361   6.3361   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    254.370
      Density (g/cm3):      1.946
      MAX. ABS. INTENSITY / VOLUME**2:      34.62762018    
      RIR:      5.793
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                28.17        100.00        3.1681    2   0   0         6
                40.26         63.79        2.2401    2   2   0        12
                49.86         19.65        1.8291    2   2   2         8
                58.25          8.16        1.5840    4   0   0         6
                65.93         20.32        1.4168    4   2   0        24
                73.18         13.83        1.2934    4   2   2        24
                86.99          3.97        1.1201    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.