With its high pressure resistance, high erosion resistance, chemical resistance, frost trength basalt is a volcanic type of the gabro group.
They are in black, fine grained, hard, dense, durable and dense batches form. In natüre they are found as block, veins and streams.
They are in glassy dough and scattered crystal because of quick cooling. One of the most interesting feature is they are formed as hexagonal columns. These colomns came from cooled and shrinked magma streams. As it is so hard and durable stone, it is used in every steps of the buildings, pavements, grounds, side covering, city roads, bridge building. Considering its physical and mercanincal propertiesbasalt stone can be used as aggregate in concrete.

Basalt is a rock type formed as a result of thousands of years of volcanic movements. It is found in nature as masses, veins or streams. The most distinctive feature of the volcanic movements occurring in the fourth geological phase is that the magma flows of a large amount of basalt stones are formed by cooling and hardening.
Properly creating large columns in hexagonal prisms.
Due to the large amount of magnetite in its structure, basalt stone is more difficult than granite known as black, dense, heavy and durable stone and is therefore very resistant to pressure.
In addition to construction stone, bridge construction, paving stone, parquet and sawdust, nowadays railway ballast material is also used as asphalt aggregate.
In recent years, natural stone and natural stones are not preferred as well as natural life and environmental consciousness of the people in the region. Due to the lack of free silica in its structure, basalt stone, silica and quartz sand have been used as an alternative and healthy raw material in many business lines in the past.