Calomel
Havighurst R
Journal of the American Chemical Society 48 (1926) 2113-2130
Parameters in crystal structure. The mercurous halides
_cod_database_code 1011076
_database_code_amcsd 0017974
4.47 4.47 10.89 90 90 90 I4/mmm
atom x y    z
Hg1  0 0 .116
Cl1  0 0 .347