Microbial Beneficiation Of Salem Iron Ore Using
The world's resources are dominated by low grade ore, though current world production of iron ore is largely by supply from deposits of high grade ore composed of either rocks of massive hematite or pisolitic goethite. World iron ore production in 2013 was 2.95 billion tonne, with the major producers being China, Australia, and Brazil.Six types of goethite morphology have been distinguished in the Orissa iron ore samples. These are botryoidal, nodular, spheroidal, platy, stalactitic, and ﬂ aky ( Fig. 1 ). These morphotypes have been established on electron microscopy. The characteristics of individual morpho types in iron ore of Orissa are described in T able 1 .