RE:RE:RE:Firefly Reports More Spectacular Assay ResultThank you and your point is well made about differential mining costs when ROM ore is mined at the greater depths at shallow slopes.
Kidd for example has the same grades as a Ming with gold replacing zinc .
But, profitability is also a matter of grade.
Rambler could not make a sustained profit at 1.5% copper and 0.5 grams per ton gold.
My cursory analyses is that the copper grade needs to be 2% or more and the gold grade above 1 gram per ton .
This is why Firefly is drill defining locations/ depths with known grades much higher than 1 .5 % copper.
If they are successful....and their history has that trait..the Ming mine will regain sustained profitability..