(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: b&w, T = 23 C, P = 0.0 kbar, cell volume = 236.48 ang**3
_database_code_amcsd 0003233
6.1839 6.1839 6.1839 90 90 90 Fm3m
atom  x  y  z occ
K     0  0  0  .8
Na    0  0  0  .2
Cl   .5 .5 .5