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Iron Ore: Sedimentary Rock

Available world iron ore resourc Iron is the most abundant element on earth but not in the crust [citation needed] The extent of the accessible iron ore reserves is not known, though Lester Brown of the Worldwatch Institute suggested in 2006 that iron ore could run out within 64 years (that is, by 2070), based on 2% growth in demand per year...

Is iron a igneous or sedimentary rock

Iron, or Iron Ore, is a mineral that is found within rock It would be more likely to be found in igneous rocks as a vein or ore to be mined However, red sandstone has particles of iron ore ....

Metamorphic rock

Metamorphic rocks arise from the transformation of existing rock types, in a process called metamorphism, which means "change in form" The original rock is subjected to heat (temperatures greater than 150 to 200 °C) and pressure (100 megapascals (1,000 bar) or more), causing profound physical or chemical changeThe protolith may be a sedimentary, igneous, or existing metamorphic rock...

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