need the recovery numbers. I believe the mill has been improved a great deal and it was last at around 68% recovery, but i recall just the improved spirals pumped that to 75%. so if we assume thats correct...
its tonnage X grade X recovery in this case = around 7 tonnes of tin concentrate.
$70 grande profit.... not bad for 3 days work
Ann: Mining of First Ore Block at Granville Tin Project, page-10
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