diorite
Di"o*rite, n. Etym: [Cf. F. diorite. See Diorism.] (Min.) Defn: An igneous, crystalline in structure, consisting essentially of a triclinic feldspar and hornblende. It includes part of what was called greenstone.
Di"o*rite, n. Etym: [Cf. F. diorite. See Diorism.] (Min.) Defn: An igneous, crystalline in structure, consisting essentially of a triclinic feldspar and hornblende. It includes part of what was called greenstone.