Metanor Resources MEAOD

economic grades

[cambus]

Economic gold extraction can be achieved from ore grades as little as 0.5g per tonne on average in large easily mined deposits. Typical ore grades in open-pit primary goldmines are 1-5g per tonne. Underground primary goldmines typically grade more than 3g per tonne. Since ore grades of 30g per tonne are usually needed before gold is visible to the naked eye, in most gold mines you will not see any gold. The average gold mining and extraction costs including depreciation, amortisation, reclamation and mine closure costs was US$339/ounce for 2005.


Trying to find how economic Barrie might be, I found this in an 2006 article-a time when gold prices were much lower than today.
Not being knowlegable re  mining I found this encouraging re Barrie.I also dont think MTO management would waste money drilling further on Barrie if they could not forsee profitability  there.