goethite

goethite [goh-thahyt, gœ-tahyt] Word Origin noun

1. a very common mineral, iron hydroxide, HFeO2, occurring in crystals, but more commonly in yellow or brown earthy masses: an ore of iron.

Origin of goethite 1815–25; named after Goethe; see -ite1 British Dictionary definitions for goethite goethite gthite noun

1. a black, brown, or yellow mineral consisting of hydrated iron oxide in the form of orthorhombic crystals or fibrous masses. Formula: FeO(OH)

Word Origin for goethite C19: named after Goethe