Talc is Hydrated Magnesium Silicate, it is a versatile material, also know as steatite or soapstone with the chemical formulation of Mg3 Si4 O10 (OH)2.Uses :
An ornamental and heat, acid and electrically-resistant stone (soapstone) used as counter tops, electrical switchboards, carvings etc, used as an ingredient in paints, rubber, roofing materials, ceramics and insecticides. Most commonly known as the primary ingredient in talcum powder. Talc is an important industrial mineral. Its resistance to heat, electricity and acids make it an ideal surface for lab counter tops and electrical switchboards. Talcum powder is also an important filler material for paints, rubber and insecticides. Even with all these uses, most people only know talc as the primary ingredient in talcum powder.
Physical Characteristics: Colour is snow white to almost silver.Luster is dull to pearly or greasy.Transparency crystals are translucent and masses are opaque.Crystal System is monoclinic; 2/m.Hardness is 1 (can leave mark on paper)Specific Gravity is 2.7 - 2.8 (average)