The world's biggest iron ore mines - Mining TechnologyFeb 19, 2014 . Brazil hosts five of the world's biggest iron ore mines, while the remaining six are located . The mine contained an estimated 4.84 billion tonnes of iron ore . The mine was estimated to hold 1.89 billion tonnes of proven iron.estimated remaining iron ore,Australia's Iron Ore Product Quality - Australian Mines Atlasdue to 'direct shipping grade reserves' estimates of about 260 Million tonne (Mt). . ores has remained relatively constant since the 1970's other iron ore product.
estimated remaining iron ore