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Updated: April 30, 2025
This batch of material goes back for another crushing, so that everything is subjected to an equality of refining. We are now in sight of the real 'concentrates, which are conveyed to dryer No. 2 for drying again, and are then delivered to the fifty-mesh screens. Whatever is fine enough goes through to the eight-inch magnets, and the remainder goes back for recrushing.
In other words, he went over the same ground again with a sampling-pick and a bundle of canvas bags. Where his theories or experience advised, he broke off quantities of rock from the ledges, which he crushed and mixed in the half of an old blanket; dividing, and recrushing again and again, until an "average" was obtained in small compass.
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