AM_Na2S
Formula: Na2 S
Name: Na2S
Unit cell: 6.526 6.526 6.526 90.0 90.0 90.0 , V=277.93
Space group: FM3M (225)

Wyckoff R W G , Crystal Structures , 1 (1963) p.239-444, Second edition. Interscience Publishers, New York, New York, Anti-fluorite structure