Helium Schuch A F, Mills R L Physical Review Letters 8 (1962) 469-470 Structure of the gamma form of solid He4 Locality: synthetic Sample: at T = 1.73 K & P = .003 GPa Note: structure known as gamma phase _database_code_amcsd 0015273 4.11 4.11 4.11 90 90 90 Im3m atom x y z He 0 0 0