Copper is found both in the free metallic state in nature (native copper) and being part of minerals such as chalcopyrite, chalcocite, cuprite, malachite and azurite. Its name is derived from the Latin word "cuprum", which in turn evolved from "aes cyprium" meaning the “metal of Cyprus”, since this island had a copper mine that supplied this metal for the Roman Empire. Copper is also present in the human beings playing a determinant role on the action mechanism of a great variety of enzymes like ceruloplasmin.
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