Banded Iron Formations (BIF) is one of the unique and important rock types in the Archaean greenstone belts and Proterozoic metasedimentary series. They occupy a unique position in the sedimentation history of this time range, as they have no modern analogues. This virtual confinement of BIF in space and in time has made them extremely useful for the understanding of the Precambrian exogenic processes and the atmospheric - environmental changes that occurred during the early history of the earth. The BIF are described with different names in different parts of the world such as, Taconite -...