AM_Helium_2 Formula: He Name: Helium Unit cell: 4.01 4.01 4.01 90.0 90.0 90.0 , V=64.48 Space group: IM3M (229)

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 = 1.9 K & P = .01 GPa, Note: structure known as the alpha form