Used as a reinforcing filler in plastics, rubber, and paints to improve strength, stiffness, and resistance to heat and chemicals. Provides a barrier effect in coatings, enhancing corrosion protection and water resistance. Commonly used in cosmetics for its reflective and pearlescent properties, adding shimmer and smooth texture to products like eyeshadows, foundations, and lipsticks. Acts as a friction reducer in lubricants and greases. Applied in construction materials to improve crack resistance and durability in cement and wallboard. Used in electrical insulation due to its dielectric properties and thermal stability. Also utilized in ceramics and refractories for high-temperature resistance and improved product stability during firing.