haematite
/ˈhiːmətaɪt/
noun
- A reddish-black mineral consisting of iron oxide, which is an important ore of iron.
- The jeweler polished a piece of haematite to make a dark, shiny ring.
- Haematite is mined in many parts of the world for its iron content.
- Ancient people used haematite as a pigment for cave paintings.
Synonyms