Sorry, I should have been a bit more specific in my post: The work done in Sudbury/Timmins has not yet resulted in actual plant. I was referring to the work completed by my chief Met. in Timmins a few years ago (as a Falco employee). The concept was not a sucess - as a result of the mineralogy...
I know of a fair bit of work done in Timmins/Sudbury (ON). You do not have to crush to 6mm unless the mineralogy dictates this - you would typically run 1/4" - 1/2" in which case it would be hoisted. You may be thinking of the fines (-2mm) which typically carries sufficient grade to be...