goethite

goethite Definition

goe·thite (gʉ′t̸hīt′, gʉr′-; --tīt; also, gō′-)

noun

a hard, brownish, orthorhombic mineral, FeO(OH), an ore of iron; iron hydroxide

Etymology: Ger göthit, after Johann Wolfgang von Goethe, in honor of his studies in geology and mineralogy

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