Mercury-Free Gold Extraction Using Borax for Small-Scale ... The commonly used way to extract gold by the miners is amalgamation, where the ability of mercury to amalgamate with gold is used to capture fine gold particles, whether from hard rock deposits or . ball mill gold mining extraction process Jul 19, 2018· The mechanical and chemical gold extraction process used at Charters Towers has . The recovery of gold from Charters Towers type ore requires a relatively simple . The plant layout was designed with provision for a second ball mill,. The gold extraction process at Arltunga - NT.GOV.AU gold from hard quartz deposits) replaced alluvial mining. Gold extraction centred around ... amalgamation and cyanidation. Mercury Amalgamation The ore obtained from the reefs was transported by horse and cart to a rock crusher, which would reduce large rocks into 50mm pieces.The rock was carried via ... The gold extraction process at Arltunga    Read More