Talc is a naturally occurring silicate mineral mined from rock deposits in the Earth’s crust. Manufacturers crush, dry and mill talc into a fine, soft, white powder called talcum powder. The powder serves as a lubricant and adds softness and shine to products. It prevents caking, absorbs moisture and makes products feel silky. This makes it a common ingredient in cosmetics, food additives and industrial products. Talcum powder has cosmetic and industrial uses.