AM_Oldhamite
Formula: Ca S
Name: Oldhamite
Unit cell: 5.6903 5.6903 5.6903 90.0 90.0 90.0 , V=184.25
Space group: FM3M (225)

Wyckoff R W G , Crystal Structures , 1 (1963) p.85-237, Second edition. Interscience Publishers, New York, New York, rocksalt structure