Lava Stone, (also known as Lava Rock) is an igneous volcanic rock. It has solidified from molten lava, after conditions of intense heat and pressure. Lava Rocks are considered a stone of rebirth. If ever you find yourself drawn to a Lava Rock, you can assure that it has chosen you, instead of the other way around. Lava Rock tends to absorb Oils rather nicely and will do just fine holding a scent for long periods of time.