Volcanic rock
ROCK FORMED FROM LAVA ERUPTED FROM A VOLCANO
Volcanic Rock; Lava rock; Effusive rock; Volcanite; Igneous volcanic rock; Axiolitic; Volcanic rocks; Lava stone; Volcanics; Black volcanic rock; Subalkaline igneous rocks; Subalkaline volcanic rock; Alkaline volcanic rock; Peralkaline volcanic rock
Volcanic rock (often shortened to volcanics in scientific contexts) is a rock formed from lava erupted from a volcano. In other words, it differs from other igneous rock by being of volcanic origin.