Iron ore - Wikipedia
Lower-grade sources of iron ore generally require beneficiation, using techniques like crushing, milling, gravity or heavy media separation, screening, and silica froth flotation to improve the concentration of the ore and remove impurities. The results, high-quality fine ore powders, are known as fines. Magnetite. Magnetite is magnetic, and hence easily separated from the gangue minerals and,Adding value to iron ore, at a cost: Australia’s magnetite,,Hematite DSO is what Australia's iron ore industry was built upon. Karara, which at the time was a 50:50 joint venture between Perth-based Gindalbie Metals and China's Ansteel, some 200 km from Geraldton, was an entirely different operation.,or iron ore or coal beneficiationNational Mineral Development Corporation - Wikipedia,NMDC Limited, (formerly National Mineral Development Corporation), is an Indian public sector mineral producer. It is 69.65% owned by the Government of India, under the administrative control of the Ministry of Steel.. It is involved in the exploration of iron ore, copper, rock phosphate, limestone, dolomite, gypsum, bentonite, magnesite, diamond, tin, tungsten, graphite, etc.