TlI Wyckoff R W G Crystal Structures 1 (1963) 85-237 Second edition. Interscience Publishers, New York, New York _database_code_amcsd 0011659 4.582 12.92 5.251 90 90 90 Cmcm atom x y z Tl 0 .392 .25 I 0 .1333 .25