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High Grade in USA is 0.20 OPT and higher.
Low grade is 1/3 gram, 0.01 OPT and higher.
Canadian miners cite 3-4-5 g/tn as high.
So I see much variance. Comstock grades far exceed many well touted Canadian mines cited in Northern Miner and Mining Report.
Scheqky 2 years ago
It would be interesting to hear what they term high and low grade gold means!!!
Specify %%%ssss
Xti3012 2 years ago