According to the Minerals Education Coalition, most arsenic is obtained as a by-product in the treatment of gold, silver, copper and other metal ores. The majority of the world's arsenic comes from copper-gold deposits i... More »

Some different types of ores and their uses are bauxite, which contains aluminum; stibnite, which contains antimony; chromite, which supplies chromium; chalcopyrite, which provides copper and wolframite and scheelite, wh... More »

Examples of ores include aluminum, copper, clay and sodium. An ore is a naturally occurring mineral, rock or metal that can be mined in sufficient amounts to sell for a profit. Ores can also be a natural product that can... More »

Nickel is extracted from ores via the Mond process, in which nickel oxides are purified through multiple steps into pure nickel metal. It is placed with hydrogen and carbon monoxide gases at 122 degrees Fahrenheit, which... More »

Silver is usually obtained as a by-product of the process of purifying other metals such as copper, lead and zinc. Silver can also be collected from refining gold or from silver ores. It is usually separated from its ore... More »

Silver is found in pure metal deposits such as horn silver or argentite and can also be obtained together with deposits of ores comprised of copper, lead or gold. Silver has been used by humans for around 5,000 years and... More »

Metal extraction from ores occurs in many different ways involving physical, chemical and electrical means. Even ores of the same metal sometimes require different methods of separation depending on the concentration of ... More »