Holmium Formula: Ho Name: Holmium Unit cell: 3.5773 3.5773 5.6158 90.0 90.0 120.0 , V=62.24 Space group: P63/MMC (194)
Wyckoff R W G , Crystal Structures , 1 (1963) p.7-83, Second edition. Interscience Publishers, New York, New York, Hexagonal closest packed, hcp, structure