Is pyrophyllite a layered silicate mineral?

Pyrophyllite is a layered silicate mineral with chemical stability, low thermal expansion, low thermal insulation, low electrical conductivity, high insulation, high melting point, and good corrosion resistance. Pyrophyllite is an important production raw material for functional ceramics (superhard ceramics and ultrahigh voltage ceramics), new green refractory materials, high-performance glass fibers, superhard materials (artificial diamond), etc. Pyrophyllite is an important new energy (wind power and fan blade) material and new functional material.

High-quality pyrophyllite is mainly used in the production of high-strength glass fiber and superhard materials (synthetic diamond) in strategic emerging industries. It occupies an irreplaceable position especially in the field of superhard materials such as static ultrahigh-pressure synthetic diamond. Glass fiber is mainly made of pyrophyllite, quartz sand and limestone as raw materials, of which the pyrophyllite content ac s for more than 50%. FRP products produced from high-strength glass fiber are mostly used in emerging fields such as military industry, space, bulletproof armor, aviation, aerospace, and marine engineering.