AM_Achavalite Formula: Fe Se Name: Achavalite Unit cell: 3.637 3.637 5.958 90.0 90.0 120.0 , V=68.25 Space group: P63MC (186)

Wyckoff R W G , Crystal Structures , 1 (1963) p.85-237, Second edition. Interscience Publishers, New York, New York, Note: ideal nickel arsenide structure