It is/was HCCA, Furlong, and NMC that are inane in calling the tailings "ore concentrates" You do know who put it there, what they did with it, and what they got out of it, do you not? And how long the pits have been there, mostly untouched? And how much Au was recovered?
If they are concentrates, I wonder where the other processed material went?
This is a scam, period.