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early gold ore mining methods in china

early gold ore mining methods in china

Mar 01, 2015· Following thedawn of metalin the third millennium BC in western China, placer gold mining was soon in practice, particularly during the Xia, Shang and Zhou dynasties. During 1096 AD, mining techniques were developed to dig underground tunnels and the earliest mineral processing technology was in place to pan gold from crushed rock ores.

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