There are two basic methods of mining iron ore. These are • Surface mining or openpit mining The ore is mined from large open pits by progressive extraction .. the most energy and is the most energy intensive equipment in beneficiation.
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Openpit, opencast or open cut mining is a surface mining technique of extracting rock or minerals from the earth by their removal from an open pit or borrow. This form of mining differs from extractive methods that require tunneling into . Marble · Metal ores, such as copper, iron, gold, silver and molybdenum · Uranium