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Mineral Processing Wastes - Material Description - User…
Waste rock generally consists of coarse, crushed, or blocky material covering a range of .... Finally, some iron ore waste rock may contain traces of residual iron, which could ... The hardness of the waste rock is determined by the rock type.

How iron is made - material, manufacture, making,…
Iron ore is converted into various types of iron through several processes. ... were not understood; in particular, the importance of carbon to the metal's hardness. ... these refining methods are called beneficiation and include further crushing,...
