Studies on Suitability of High Grade Manganese Ore of Bahadurgatta area, Chitradurga District, Karnataka in the manufacture of Electrolytic Manganese Dioxide

Manganese is one of the most widely distributed elements in the earth's crust. Manganese does not occur in nature in metallic form, but only in combination, usually in the form oxide, hydroxide, carbonate and silicate. Besides, it is important raw material in iron and steel industry, finds use in the manufacture of chem-icals and dry cells in the form of manganese dioxide. The Indian manganese dioxide ores are reported to be mostly of pyrolusite and cryptomelane and devoid of gamma or delta form