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Re: Aqua-FX post# 3140

Friday, 12/04/2015 8:05:50 AM

Friday, December 04, 2015 8:05:50 AM

Post# of 47639
"The average for the 16 holes was .392 Au ppm and 1.676 Ag ppm"

Since ppm divided by 2200 x 2000 = grams per ton and grams divided by 31.1 = troy ounces, that means that the averages are:

.392 * 22/20 = .4312 gm/ton or 0.0138649517684887 oz/ton of gold
1.676 * 22/20 = 1.8436 gm/ton or 0.0592797427652733 oz/ton of silver.

So,at US$1060/oz, what is a reasonable cut-off grade for heap leaching? Evidently Argonaut thinks that ~$800/oz isn't worth the effort or that they can renegotiate a more favorable contract.

Dino