Gold mining - WikipediaThe zinc is removed with sulfuric acid, leaving a silver or gold . associated with this extraction method, largely due to the high.gold ore mining and processing ways,Gold extraction - WikipediaGold extraction refers to the processes required to extract gold from its ores. This may require a combination of comminution, mineral processing, hydrometallurgical, and pyrometallurgical processes to be performed on the ore. Gold mining from alluvium ores was once achieved by techniques . A technique known to Pliny the Elder was extraction by way of crushing,.
gold ore mining and processing ways