Thenardite Zachariasen W, Ziegler G Zeitschrift fur Kristallographie 81 (1932) 92-101 The crystal structure of anhydrous sodium sulfate Na2 S O4 _cod_database_code 1011184 _database_code_amcsd 0018059 5.85 12.29 9.75 90 90 90 *Fddd .125 .125 .125 atom x y z S1 .125 .125 .125 Na1 .125 .125 .436 O1 -.022 .056 .214