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general::
noun ADJ. molten | beaten | unalloyed | burnished Her hair shone like burnished copper. VERB + COPPER mine | produce | be alloyed with silver alloyed with copper COPPER + VERB be alloyed with sth copper alloyed with arsenic COPPER + NOUN mine | miner | mining, smelting | deposit, ore | alloy, sulphate | coin, ingot, pipe, plate, wire | engraving PREP. in ~ (= using copper) She works mainly in copper. PHRASES an alloy of copper and/with sth Brass is an alloy of copper and zinc.
Oxford Collocations Dictionary