(3) Bentonite deposits are found in Pakur sub-division of Sahibganj district of Jharkhand. Bentonite is Hydrous Aluminium Silicate {Al4 [Si6Al2O20](OH)4}nH2O}. It caters to a wide range of industries, from traditional usage areas such as metal casting, iron ore pelletizing, civil engineering, oil & water drilling, to specialty application areas such as paper, paint, detergents, cosmetics etc.