AM_Calomel Formula: Hg Cl Name: Calomel Unit cell: 4.4795 4.4795 10.9054 90.0 90.0 90.0 , V=218.83 Space group: I4/MMM (139)

Calos N J , Kennard C H L , Davis R L , Zeitschrift fur Kristallographie , 187 (1989) p.305-307, The structure of calomel, Hg2Cl2, derived from neutron powder data