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copper mine quarry for cement production
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copper mine quarry for cement production

copper mine quarry for cement production

In 1972, after 5 years of production, Callahan Mining closed its copper-zinc mining and milling operation at Harborside in Brooksville due to depletion of reserves. During this time the Callahan Mine had yielded 800,000 tons of ore grading 5.5% zinc, 1.25% copper, 0.5% lead, and 0.5 oz/ton silver.

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High and New Industrial Zone, Kexue Revenue, Zhengzhou, China

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