Earlier in this series, we made the case for copper being “the metal that built technology.” Some readers took issue with that statement, noting correctly that meteoric iron and gold were worked long ...

The gold smelting market presents opportunities in expanding refining capabilities, adopting low-emission technologies, and increasing recycling of precious metals. Rising jewelry and luxury goods ...

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THE work of revising the excellent treatise of the late Mr. W. G. McMillan has, on the whole, been admirably done by Mr. Cooper, although there still remain a few slight errors in the body of the work ...