The specific magnetization coefficient of the manganese ore is up to 250×10 – 6cm 3 /g, the tungsten manganese iron ore is 66×10 – 6 cm 3 /g, and the manganese carbonate ore is 125×10 – 6 cm 3 /g. Most of the gangue minerals are aluminosilicates, which are nonmagnetic. Therefore, manganese ore enrichment can be achieved by strong ...