Copper is a chemical element with symbol Cu, atomic number 29, and possesses a reddish-orange metallic luster appearance. Copper is mainly found in copper ore such as chalcopyrite, bornite, and malachite, but small amounts are occasionally found as native copper. It is a metal which can be applied to additive manufacturing & 3D printing, chemical manufacturing, jewelry & fashion, pigments & coatings, textiles & fabrics, aerospace, defense, metals, research & laboratory, thin film deposition, automotive, high purity metals, nuclear energy, and space.