Gold processing . Britannica
Gold processing, preparation of the ore for use in various products. . By 2000 bc the process of purifying gold silver alloys with salt to remove the silver was developed. . The largest gold find in history is in the Witwatersrand of South Africa.
Mineral dressing (= Ore beneficiation)
called ore preparation, milling, and ore dressing or . Ore dressing is a process of mechanically separating the grains of .. Cyanide in the beneficiation of gold.Get Price