Rubidium Kelly F M, Pearson W B Canadian Journal of Physics 33 (1955) 17-24 The rubidium transition at ~180 K Locality: synthetic Sample: at T = 77 K Note: specimen III _database_code_amcsd 0012168 5.612 5.612 5.612 90 90 90 Im3m atom x y z Rb 0 0 0