Basalt - Types and properties

Basalt, a fine-grained extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava).

More than 90% of all volcanic rock on Earth is basalt.

Check out some of the famous basalts we stock. Basalt types around the world, for your home and any commercial or residential project. Long expertise since 1981.