AM_Helium_5
Formula: He
Name: Helium
Unit cell: 3.046 3.046 4.986 90.0 90.0 120.0 , V=40.06
Space group: P63/MMC (194)

Schuch A F , Mills R L , Physical Review Letters , 6 (1961) p.596-597, New allotropic form of He3, Locality: synthetic, Sample: at T = 15.98 K & P = .136 GPa