Calomel Calos N J, Kennard C H L, Davis R L Zeitschrift fur Kristallographie 187 (1989) 305-307 The structure of calomel, Hg2Cl2, derived from neutron powder data _database_code_amcsd 0010993 4.4795 4.4795 10.9054 90 90 90 I4/mmm atom x y z B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Hg 0 0 .119 .0001 .0001 .071 0 0 0 Cl 0 0 .3356 .056 .056 -.004 0 0 0