AM_Helium_3
Formula: He
Name: Helium
Unit cell: 3.46 3.46 5.6 90.0 90.0 120.0 , V=58.06
Space group: P63/MMC (194)

Schuch A F , Grilly E R , Mills R L , Physical Review , 110 (1958) p.775-775, Structure of the alpha and beta forms of solid He, Locality: synthetic, Sample: at T = 3.3 K & P = .018 GPa, Note: structure known as the beta form