allanite
Al"lan*ite, n. Etym: [From T. Allan, who first distinguished it as a species.] (min.) Defn: A silicate containing a large amount of cerium. It is usually black in color, opaque, and is related to epidote in form and composition.
Al"lan*ite, n. Etym: [From T. Allan, who first distinguished it as a species.] (min.) Defn: A silicate containing a large amount of cerium. It is usually black in color, opaque, and is related to epidote in form and composition.