The world's largest iron ore deposits formed when the ancient ... in eight banded iron formations — giant blocks of sedimentary rock that feature alternating layers of iron oxides, such as ...

A newly discovered iron ore deposit in Western Australia has been identified as the largest ever recorded, containing an astonishing 55 billion metric tons of high-quality iron ore. This massive find, ...

2,500 mya: Banded iron formations Banded iron formations (BIFs) are sedimentary rocks deposited extensively ... primary source of today's global iron ore supply. From the 600 trillion tons of ...

Visitors to the Museum can touch the wavy surface of the banded iron formation The waves of colourful rock within the specimen are made up of black and red bands of iron oxide (mostly haematite and ...