(ˌmiːərəʊˈlɪtɪk) adj (Geological Science) (of an igneous rock) having irregular cavities into which crystals protrude
miarolitic
miarolitic
[¦mē·ə·rō¦lid·ik] (petrology) Of igneous rock, characterized by small irregular cavities into which well-formed crystals of the rock-forming mineral protrude.