PbO Wyckoff R W G Crystal Structures 1 (1963) 85-237 Second edition. Interscience Publishers, New York, New York Sample known as red plumbous oxide _database_code_amcsd 0011633 3.975 3.975 5.023 90 90 90 P4/nmm atom x y z Pb 0 .5 .2385 O 0 0 0