d031b852_ध_रस_यन___क__स_च____व_क_प_ड_य___Source_and_description
[Chemical name] magnesium [Chemical formula] Mg [Common or alternative name] Fire starter [Source and description] 
Sold in solid blocks as a fire starter in many camping and outdoor stores.
सरलता से उपलब्ध रसायनों की सूची - विकिपीडिया