Diabase

Definition:

• (n.) A basic, dark-colored, holocrystalline, igneous rock, consisting essentially of a triclinic feldspar and pyroxene with magnetic iron; -- often limited to rocks pretertiary in age. It includes part of what was early called greenstone.

Compare diabase with other words:

diabase vs. disbase

diabase vs. diapase

diabase vs. variolite

diabase vs. feldspar

diabase vs. pyroxene

diabase vs. rock

diabase vs. igneous

diabase vs. dolerite