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 = 90 K Note: specimen IV _database_code_amcsd 0012172 5.616 5.616 5.616 90 90 90 Im3m atom x y z Rb 0 0 0