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Sunday, January 21, 2024 5:24:16 PM
To estimate the gold grade of the original ore, we should use the gold concentration rate, which compares the gold grade of the concentrate to that of the original ore. In your case, this is 40-fold, as calculated from the gold grades (117 oz/ton in the concentrate vs. 2.925 oz/ton in the original ore).
Using the mass reduction factor (800-fold) instead of the gold grade concentration factor (40-fold) for estimating the gold grade in the original ore would lead to a significant underestimation.
While the 800-fold mass reduction rate is correct for the concentration process, it's the 40-fold gold grade concentration rate that should be used to estimate the gold content in the original ore. I assure you man, you need to consult someone on this and realize that you're confused.
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