limonite
/ˈlaɪmənaɪt/
noun
- A brownish-yellow iron ore used as a source of iron and as a pigment.
- Artists sometimes grind limonite into a powder to make yellow ochre paint.
- Limonite is not as rich in iron as hematite, but it is still mined commercially.
- The old mine was full of limonite, which gave the rocks a rusty color.
Synonyms