Nsutite is a manganese oxide mineral with formula: (Mn⁴⁺_1−xMn²⁺_xO_2-2x(OH)_2x where x = 0.06–0.07).^[4] 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 6.5–8.5 and an average specific gravity of 4.45.^[4] Nustite is used as a cathode in zinc–carbon batteries, but synthetic manganese oxide is gradually replacing it.

Nsutite
Earthy manganese or wad
General
Category	Oxide minerals
Formula (repeating unit)	Mn4+1−xMn2+xO2-2x(OH)2x where x = 0.06–0.07
IMA symbol	Nsu[1]
Strunz classification	4.DB.15c
Crystal system	Hexagonal Unknown space group
Identification
References	[2][3][4]