Basalt is a durable and stable dark stone even in hostile atmosphere.
Basalt is an effusive volcanic rock of dark color. Basalt originates from a fast cooling of magma which comes in contact with the atmosphere; as it has not been subjected to crystallization, it has a strongly compact structure. Its properties are appreciated for building construction, because this material shows mechanical properties even at high temperatures, furthermore it is very chemically stable. It also has great resistance to erosion, climate and time. This material is hence used for the architectural design of internal and external environments and coverings. Basalt is also used as an element to produce asphalt, steps and sub-steps, road edges and statues.