AM_Rubidium_1 Formula: Rb Name: Rubidium Unit cell: 5.605 5.605 5.605 90.0 90.0 90.0 , V=176.09 Space group: IM3M (229)

Barrett C S , Acta Crystallographica , 9 (1956) p.671-677, X-ray study of the alkali metals at low temperatures, Locality: synthetic, Sample: at T = 78 K, Note: lattice parameters are average of 2 values