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Tellurium Ingot A minor metal is a widely-used term in the metal industry that generally refers to primary metals not traded on the London Metal Exchange (LME).
In chemistry, the term base metal is used informally to refer to a metal that oxidizes or corrodes relatively easily and reacts variably with diluted hydrochloric acid (HCL) to form hydrogen. Examples include iron, nickel, lead and zinc. Copper is also considered a base metal because it oxidizes relatively easily, although it does not react with HCL.
