" But it also means that they will be running partially depleted stuff (~4g/t?) with ~20% of the gold removed rather than the original (~5g/t?). Maybe less time will be required and make up for the lower grade."
Hi Spiny,
So if my math is right, we should get another 20 to 25 grams per ton from the ore because only 15 to 25% was processed in the first place. Processing the ore again won't give as much yeild as processed new ore, but it might be more effecient and less expensive to do it this way, instead having to load and trucking new ore down the mountain. Besides that, pulling another 20 t0 25 grams of concentrate out of the ore isn't chicken feed and if it can be procecced faster than the first time thru, that could be another plus. JMHO
Go SFMI/GHDC