This picture is of dry cobbing 1”minus crushed ore – note the material flying off the head pulley and moving to the right – that is the reject tails having no magnetite while the material dropping vertically off the drum is the magnetite bearing crude ore – this is the first stage of concentrating.  This specific test rejected 30+% of the total ore feed while the magnetite loss was less than 1% - at this point there is no question about whether or not the Bending Lake ore responds well to dry cobbing.  

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