RHYS LEWIS & MINH TAN PHAM, AHS, DECD, UNISA / SCIENCE PHOTO LIBRARY RHYS LEWIS & MINH TAN PHAM, AHS, DECD, UNISA / SCIENCE PHOTO LIBRARY
Sample of the mineral chalcopyrite. This mineral consists of the chemical elements copper, iron and sulphur. These elements and their oxides give the surface of the mineral an iridescent sheen. Chalcopyrite is an important source of copper and iron. This very common mineral is one of the most important copper ores, yielding the by-products gold and silver. About 80 percent of the world's copper is derived from treatment of chalcopyrite ore.
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