Monteponite Walmsley H Proceedings of the Physical Society of London 40 (1928) 7-13 The Structure of the Smoke Particles From a Cadmium Arc _cod_database_code 1011003 _database_code_amcsd 0017918 4.699 4.699 4.699 90 90 90 Fm3m atom x y z Cd1 0 0 0 O1 .5 .5 .5