d031b852_ध_रस_यन___क__स_च____व_क_प_ड_य___Source_and_description
[Chemical name] magnesium silicate [Chemical formula] Mg3Si4O10(OH)2 [Common or alternative name] Talc [Source and description] 
Talcum powder comes from talc, the softest of all minerals, and is used as a dusting powder for babies. It is available in the body care section of the drug store.
सरलता से उपलब्ध रसायनों की सूची - विकिपीडिया