Where Are Lava Rocks Made

Extrusive rocks are formed on the surface of the Earth from lava, which is magma that has emerged from underground. Intrusive rocks are formed from magma that cools and solidifies within the crust of the planet.

Where is lava stone found?

Basalt, or lava stone, is one of the most common rock forms found on land and oceans.

Are lava rocks actually lava?

Also, technically, they aren’t really lava. Lava is what we call the molten rock that flows from an active volcano, after it’s exposed to the air. Underground it is called magma. So, the lava rocks in your garden are really an igneous rock – meaning hardened lava.