Halite
Wang K, Reeber R R
Physics and Chemistry of Minerals 23 (1996) 354-360
Thermal expansion of alkali halides at high pressure: NaCl as an example
Sample: T = 500 K, Molar volume = 27.69 cc/mol
_database_code_amcsd 0007960
5.6869 5.6869 5.6869 90 90 90 Fm3m
atom  x  y  z
Na    0  0  0
Cl   .5 .5 .5