BBC GCSE Bitesize: Methods of extracting metalsFor example, iron ore is used to make iron and steel. Copper is easily extracted, ... Methods of extracting metals. The Earth's crust [crust: ...M

The Metallurgy of Cyanide Gold Leaching – An IntroductionLeaching gold with a cyanide solution remains the most widely used hydrometallurgical process for the extraction of gold from ores and

Rock and Mineral Uses from RockmanThere is little we do that does not involve rocks and minerals and the metals we extract from them. Sadly, people seldom stop to think about them.Mining Wikipe

Tin mining WikipediaTin mining began early in the Bronze Age, as bronze is a copper-tin alloy. Tin is a relatively rare element in the Earth’s crust, with approximately 2 ppm (parts ...Africa