Talc or soap stone is quite a popular and familiar mineral. It is crushed into fine powder to prepare talcum powder. Bulk Density (gm/ml) 0.40 - 0.558 - 9Moisture 0.58Loss On Ignition 4 - 6Silica as SiO2 58 - 62Magnesia as MgO 28 - 32-It is used in making baby powder, first aid powder and various other cosmetics-It was used to make ornamental and practical objects-It is also used to make sculptures, bowls, hearths and many other useful objects-Chemical compositions of soap stone powder talc make it an important part of plastic, rubber and roofing materials as well.