Silver

Used in photography, jewelry, in electronics because of its very high conductivity, as currency - generally in some form of an alloy, in lining vats and other equipment for chemical reaction vessels, water distillation, etc., catalyst in manufacture of ethylene, mirrors, electric conductors, batteries, silver plating, table cutlery, dental, medical, and scientific equipment, electrical contacts, bearing metal, magnet windings, brazing alloys, solder. Silver is mined in approximately 56 countries. Nevada produces over one-third of the U.S. silver. Largest silver reserves are found in the U.S., Canada, Mexico, Peru, and China.