Silver


The main silver mineral is the argentite (Ag2S), which usually occurs associated to other sulfides as copper or lead sulfide. Other silver minerals are cerargirite (AgCl), proustite (3Ag2S.Ag2S3), pirargirite (3Ag2S.Sb2S3), stefanite (5Ag2S.Sb2S3) and native silver. The silver occurs in most of the lead and copper ores, and associated to cobalt and gold arsenide. Most of the produced silver is a by-product of the extraction process of these metals. However there are some mines specially devoted to the extraction of this element.

The largest world producers of silver are the USA, Canada, Mexico, Bolivia, former-USSR, Australia and Germany.