# How Is Gold Extracted from Ores?

Gold is extracted by first getting the gold ore from the mines. Then separating the impurities from the real gold and this is usually done using cyanide. The gold ore is placed into a tank that contains a weak cyanide solution, zinc is added and a chemical reaction which separates the gold from the ore. Pure gold is removed from the solution with a filter press.
Q&A Related to "How Is Gold Extracted from Ores"
 Gold is usually found alone or alloyed with mercury or silver, but can also be found in ores such as calaverite, sylvanite, nagyagite, petzite and krennerite. Most gold ore now comes http://www.ehow.com/how-does_5393434_gold-extracte...
 Gold is formed independently from rocks so unlike iron or copper there is no 'ore' to extract it from. In general gold is acquired by finding nuggets in rocks. The gold is simply http://wiki.answers.com/Q/How_do_you_extract_gold_...
 The cheapest way is cyanide leaching. A basic (pH) solution of cyanide is dripped over a pile of gold ore. The solution dissolves the gold out of the rocks and can then be separated http://answers.yahoo.com/question/index?qid=200811...
 Much of the world's iron ore is extracted through open pit mining in http://www.chacha.com/question/how-is-iron-ore-ext...