gold processing | BritannicaFeb 7, 2008 . Gold's chemical stability is based on the relative instability of the compounds that it forms with oxygen and water—a characteristic that allows.chemicals in gold processing,Gold extraction - WikipediaGold extraction refers to the processes required to extract gold from its ores. This may require a . Ores in which gold occurs in chemical composition with other elements are comparatively rare. They include calaverite, sylvanite, nagyagite,.