Supreme Quality Talc Powder in India by Earth MinChem http://www.earthminechem.com/talc/ Most people are familiar with the mineral talc. It can be crushed into a white powder that is widely known as "talcum powder." This powder has the ability to absorb moisture, absorb oils, absorb odor, serve as a lubricant, and produce an astringent effect with human skin. These properties make talcum powder an important ingredient in many baby powders, foot powders, first aid powders, and a variety of cosmetics. Talc is a hydrous magnesium silicate mineral with a chemical composition of Mg3Si4O10(OH)2.