Plutonium Wyckoff R W G Crystal Structures 1 (1963) 7-83 Second edition. Interscience Publishers, New York, New York Sample at T = 320 C Cubic closest packed, ccp, structure _database_code_amcsd 0011158 4.6370 4.6370 4.6370 90 90 90 Fm3m atom x y z Pu 0 0 0