SCALES OF RESPONSIBLE GOLD MINING University of Vermont
The future of artisanal and small scale gold mining in Southern Ecuador remains uncertain as gold Mercury and cyanide use in processing . Other minerals and material mined include: clays, tin, tungsten, limestone, sulphur, lithium.
Gold cyanidation is a hydrometallurgical technique for extracting gold from low grade ore by converting the gold to a water soluble coordination complex. It is the most commonly used leaching process for gold extraction. . nature of cyanide, the process may be considered controversial and its usage is banned in a small.