bornite
/ˈbɔrnaɪt/
noun
- A reddish-brown or purple copper ore that is an important source of copper.
- Miners extracted bornite from the old copper mine in the mountains.
- Bornite is often called 'peacock ore' because of its colorful, iridescent surface.
- The rock collector was thrilled to find a piece of bornite with a beautiful blue-purple sheen.