Copper element

An orange-red, highly conductive, soft, easily worked metal, melting at a lower temperature than iron. Green when oxidized.

Getty AAT: Pure metallic element having the symbol Cu and atomic number 29; a reddish brown, ductile metal that is present in the earth's crust, occurring as a native metal and as ores of sulfide, sulfate and carbonate (azurite, malachite, etc.). (AAT 300011020)