Nsutite is a manganese oxide mineral with formula: (Mn<sup>4+</sup><sub>1âÂÂx</sub>Mn<sup>2+</sup><sub>x</sub>O<sub>2-2x</sub>(OH)<sub>2x</sub> where x = 0.06âÂÂ0.07). It is found in most large manganese deposits and was first discovered in Nsuta, Ghana. Since then, it has been found worldwide. Nsutite is a dull mineral with a hardness of 6.5âÂÂ8.5 and an average specific gravity of 4.45. Nsutite has been used as a cathode in zincâÂÂcarbon batteries, but synthetic manganese oxide is gradually replacing it.