bornite

Bornite, commonly known as "peacock ore," is a vibrant mineral with an iridescent, metallic surface displaying a range of colors like purple, blue, and gold. Chemically, it’s a copper iron sulfide (Cu₅FeS₄) and is an important ore of copper, meaning it’s a source for extracting this valuable metal. Bornite forms in the Earth’s crust through geological processes involving sulfide mineral deposits. Its striking appearance makes it popular among collectors, but it is primarily valued for its role in copper production. Typically found in copper-rich deposits, bornite can be mined and processed to obtain copper used in electrical wiring, plumbing, and various industrial applications.