Basalt is igneous rock formed from the rapid cooling of basaltic lava exposed at or very near the surface of the earths crust. Basalt fiber is produced in a single process needing no alterations or elemental additives. The process consists only of melting ingenious rock containing a specific mineral content found in a few specific areas. Basalt Fiber, unlike glass is a one component fiber that does not need any other materials added for production. The Basalt rock is melted in a furnace at 1700 degrees Celsius for approximately 7-8 hours & formed by blowing fiber filament from it in the same way that glass fiber is made from silicate rock.