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Updated: May 7, 2025
We find further that the total mines of the Erzgebirge-Kreis—“circle of ore mountains”—of which those of Freiberg form a portion, produce a total of seven hundred and twenty thousand ounces of silver every year; besides from four hundred to five hundred tons of lead, one hundred and forty tons of tin, about thirty tons of copper, from three thousand five hundred to four thousand tons of iron, and six hundred tons of cobalt.
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