Basalt is a good raw material for producing"cast stone".Cast stone"is a material made by melting,casting,crystallization,and annealing basalt.It is harder and more wear-resistant than alloy steel,and more corrosion-resistant than lead and rubber.
Due to the low viscosity and high fluidity of Xuanwu magma,it is easy to form large-scale lava flows and lava deposits when erupting on the surface,but there are also layered intrusive bodies such as rock beds.
Lava plateaus with an area of thousands to hundreds of thousands of square kilometers are often formed in high-altitude areas,which some people call highland basalt,such as the Deccan highland basalt in India.
In the ocean,it forms ridges and volcanic islands.Related minerals include copper,cobalt,sulfur,ice rock,gemstones,etc.,which can also be used as acid resistant cast stone raw materials.
Columnar joints in basalt-In basalt lava flows,vertical condensation surfaces often develop into regular hexagonal columnar joints.
The above introduction is about the mineral characteristics of basalt,hoping to be helpful to you.