noun
- A brown or yellow iron oxide mineral, hydrated ferric oxide, used as an ore of iron and as a pigment.
Usage: geology; mineralogy
Examples
- Limonite deposits are commonly found in weathered iron-rich rocks.
- The artist mixed limonite pigment into the paint to achieve a warm brown tone.
- Geologists identified limonite as the primary iron ore in the region.
- Limonite forms when iron minerals oxidize and hydrate near the Earth's surface.
- The rust-colored soil contained significant amounts of limonite.