gothite
/ˈɡoʊtaɪt/
noun
- A brown or yellowish mineral that is an ore of iron, often found in soil and rocks.
- The hiker noticed a reddish-brown streak of gothite on the cliff face.
- The soil in this region is rich in gothite, giving it a rusty color.
- Miners extracted gothite from the hillside to use in making iron.