Continuous fibers drawn from natural basalt. These fibers are produced by melting basalt at temperatures ranging from 1450℃ to 1500℃ and then rapidly drawing them through a platinum-rhodium alloy wire drawing die. The color of pure basalt fibers is typically brown. Basalt fibers are a new type of inorganic, environmentally friendly, high-performance fiber material, composed of oxides such as silicon dioxide, aluminum oxide, calcium oxide, magnesium oxide, iron oxide, and titanium dioxide. Basalt continuous fibers are not only high in strength but also possess excellent properties such as electrical insulation, corrosion resistance, and high-temperature resistance. Moreover, the production process of basalt fibers ensures minimal waste and low environmental pollution. The waste can be directly decomposed in the environment without any harm, making it an authentic green and environmentally friendly material. China has listed basalt fibers as one of the four key fibers for development (carbon fibers, aramid, ultra-high molecular weight polyethylene, and basalt fibers), achieving industrial production. Basalt continuous fibers have found wide applications in various fields, including fiber-reinforced composites, friction materials, shipbuilding materials, thermal insulation materials, the automotive industry, high-temperature filter fabrics, and protective applications.