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Golden Minerals is a junior silver producer with a strong growth profile, listed on both the NYSE Amex and TSX.

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Message: Bit of gog news

At first glance this news release looked very good, but the low grades present some problems. For the given dimensions of this bulk deposit of 130m x 200m x 300m, the total volumn is 7,800,000 cubic meters. At a density of 2.5 tons per cubic meter, the total weight is about 20,000,000 tons. In order to process this much ore a mill of about 5,000 tpd would be needed and would take 11 years to process the ore. This is a large mill. The average silver grade in the news release is about 2 oz per ton and the gold and base metals add another 2 oz per ton to give a total grade of about 4 oz per ton silver equivalent. I recall that the copper in the ore presented some problems with the oxide mill processing and caused reduced gold recoveries. I think ECU solved some of this and do not know if it would be a problem with this ore. If 60% average recoveries of this ore are achieved, then saleable metal would be about 2.4 oz per tonne silver. At $30 silver total sales would be $1.44 billion. This is $131 million per year. By comparison, Golden Minerals will probably be able to generate this much sales with a mill of 2,000 tpd or less using their high grade vein ore. If you look at the depth of this Gog ore, the depth is 700 to 1000 meters and would require an expensive shaft as well.

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