How gold is made - history, used, parts, procedure, industry .Background. Gold, recognizable by its yellowish cast, is one of the oldest metals used by humans. As far back as the Neolithic period, humans have collected.industrial process of gold,industrial process of gold,Gold extraction - WikipediaJohn Stewart MacArthur developed the cyanide process for gold . until the late 19th century, that an industrial process was developed.
industrial process of gold