Gold extraction the purity of gold. The parting of gold from silver has been done since ancient times starting in Lydia in the 6th century BC. Various techniques have been practised; salt cementation from ancient times, parting using distilled mineral acids from medieval times, and in modern times using chlorination using the Miller process and electrolysis using the Wohlwill process. Gold extraction Gold 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
Are You What You Want to Be? Are You What You Want to Be? "Are You What You Want to Be?" is a song by American indie pop band Foster the People. It serves as the opening track on their second studio album, "Supermodel", and was released as the album's fourth single on September 8, 2014. An audio stream of "Are You What You Want to Be?" was uploaded by the band's Vevo account to YouTube on August 5, 2014 accompanied by its single cover. The song impacted contemporary hit radio in the United Kingdom on September 8, 2014 and modern rock radio in the United States