FIBERS FROM BASALT ROCK
The fiber rebar is made from the basalt rock which is a type of rock formed by volcanic activity, the fiber rebar is harmless and eco-friendly. The fiber rebar is now used in construction projects, and it is available in different lengths and thicknesses. It is also used as an insulator, support, and reinforcement material.

It was in 1984 when the first commercial continuous basalt fiber (CBF) operations were established as a factory located near Kiev, Ukraine. Thereafter the technology was declassified and released to the world after being one of the top kept military secrets.
Web Link: https://arabbasaltfiber.com/