COVERALL STONE INC
Basalt is a volcanic rock and one of the most common types of rock in the world. Although it is common, it is rare to find the long solid columns of basalt that we use in our products. The skin or crust on the outside of the columns will have a patina that ranges from beige to red to black and will often contain a multitude of colors. The inside of basalt is black and polishes up to a rich luster.