Basalt is the most well-known, most common volcanic rock. It is known for its characteristic forms of separation: near the surface it shows a plated, deeper benched, on the seabed it shows an ellipsoid or spherical form of cooling, while on land it is characterized by columnar separation.

Basalt is hard to machine, very hard, high-strength rock, but it is well split and polished. Its crushing strength can sometimes reach 5,000 kg/cm2, which is the highest value among all rocks. It is often used as a crushed stone in road and railway constructions, but it can also be used as pavement in the form of cube stones. 

What do we use basalt for most often?

Basalt has long been used for paving roads due to its hardness, the most well-known variety is un. cobblestone. It can be cube-shaped if it is carved and can be hexagonal; if it is broken down from the so-called basalt organ.

In addition to andesite, basalt is also suitable for crushing, as a crushed stone for the construction of a railway bed, as well as for the construction of concrete pavement and asphalt pavement, where the crushes provide the frame of the structure, and cement and bitumen are the binders.

When re-melted, basalt wool consisting of fine fibers is produced from basalt, which is an excellent heat and soundproofing material.

One possible use of basalt is carbon storage: an experiment in Iceland found that the rock can bind and convert most of the CO2 dissolved in water into carbonate in about two years. [1] Converting carbon dioxide into solid, carbonated rock is a safe way to reduce greenhouse gases in the atmosphere, as there is no possibility of leakage after the transformation.

Application of basalt


Along railway tracks

BBasalt wool for insulation