Category:Staurolite

Stau"ro*lite, n. Etym: [gr. -lite.] (min.)

Defn: a mineral of a brown to black color occurring in prismatic Crystals, often twinned so as to form groups resembling a cross. It Is a silicate of aluminia and iron, and is generally found imbedded In mica schist. Called also granatite, and grenatite.