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What type of ores can be concentrated ...

What type of ores can be concentrated by magnetic separation method ?

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Ores which are magnetic in nature can be separated from the non - magnetic gangue particles by magnetic separation. For example, ores of iron such as haematite ` (Fe_2 O _ 3 ) ` , magnetic ` (Fe_3O _4) ` , siderite `(FeCO_3) ` and iron pyrites `(FeS_2) ` being magnetic can be separarted from non - magnetic silica and other impurities by magnetic separation method.
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