Scoria
Scoria is an igneous rock that contains abundant vesicles. Scoria is formed when magma rich in dissolved gases is erupted at the earth's surface. At the surface the magma is under less pressure and the gases escape to form bubbles, which are trapped as the magma cools and solidifies.
Vesicles: - small holes formed in a volcanic rock by gas bubbles present when the lava cooled and solidified
Magma: - molten rock material consisting of silicates and dissolved gases such as steam and CO2. It may also contain suspended crystals, or rock fragments from the surrounding rocks. Magma is generated deep in the earth's crust where temperatures are high, and is the source of igneous rocks
The scoria Blue Pacific Minerals processes has application as a media in BBQ’s as a hot rock bed.