When used to describe ancient metalwork, bronze is an alloy of copper and tin. Often other metals, particularly lead, are added as well. Modern usage has broadened the term to mean a copper alloy in which the major alloying element is one other than zinc or nickel. The term is now generally used with a modifier, as in 'tin bronze', 'aluminium bronze', or 'leaded phosphor bronze'. Whether a particular copper alloy containing both tin and zinc is a 'bronze' or a 'brass' is determined by the predominant alloying element. Melting point between 1010C and 1060C.