LAWRENCE LAWRY / SCIENCE PHOTO LIBRARY LAWRENCE LAWRY / SCIENCE PHOTO LIBRARY
Native copper. Copper which is found naturally in a pure (chemically uncombined) state is termed "native copper". Native copper deposits are now almost depleted and most mining concentrates on copper-containing minerals. Copper is a soft, dense, ductile, malleable, pinkish-red metal. It is an excellent conductor of heat and electricity, and is used in electrical cables and wires and in alloys such as brass and bronze.
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