Explanatory notes
… classified in this heading are : (a) Argentite, silver sulphide. (b) Calaverite, telluride of gold and silver. … silver), silver chlorides and iodides. (d) Polybasite, sulphide of silver and antimony. (e) Proustite, sulphide … (f) Pyrargyrite, sulphide of silver and antimony. (g) Stephanite, sulphide of silver and antimony. (h) Gold and …