Talc prices vary depending on the quality and the method of processing used. It is used commonly because of its fragrance retention ability, luster, purity, softness and whiteness. Other commercially important properties of talc are its chemical inertness, high dielectric strength, and high thermal conductivity. Major markets for talc are ceramics, paint, paper and plastics. Pyrophyllite is a hydrous aluminium silicate with a structure similar to talc. Talcum powder is mainly preferred for babies and also by some adults. Talc prices are in the range of $100 to $400 per kg.