| Its compounds tend to be found with ores of other metals, such as lead, silver, gold, and cobalt. |
| Unlike aluminum, copper metal is fairly easy to obtain chemically from its ores. |
| The element is almost invariably found in conjunction with ores of zirconium, especially zircon and baddeleyite. |
| Bacterial redox reactions with minerals are already being exploited in mining low grade or inaccessible ores. |
| Typically, these ores have been milled and floated to produce a concentrate of higher metal grades. |
| The major export items are dominated by commodities, such as petroleum, metalliferous ores and scrap, coal, non-ferrous metal and gold. |
