(K.5Na.5)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: als4k50, T = 500 C, P = 0.0 kbar, cell volume = 229.92 ang**3
_database_code_amcsd 0003306
6.1262 6.1262 6.1262 90 90 90 Fm3m
atom  x  y  z occ
K     0  0  0  .5
Na    0  0  0  .5
Cl   .5 .5 .5