Found 1 items, similar to Dolerite.
English → English (gcide) Definition: Dolerite Dolerite \Dol"er*ite\, n. [Gr. dolero`s deceptive, because it was easily confounded with diorite.] (Petrography) (a) A dark, crystalline, igneous rock, chiefly pyroxene with labradorite. (b) Coarse-grained basalt. (c) Diabase. (d) Any dark, igneous rock composed chiefly of silicates of iron and magnesium with some feldspar. -- Dol`er*it"ic, a. [Webster 1913 Suppl.]