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The sulfides are made up of sulfur combined with another mineral, usually a metal. Many of the world’s primary metal ores belong to this group. The chart below lists some of these metal ores and the metal that is produced from them.
Sulfide Ores and Their Metals
|Cinnabar - This bright red mineral crystallizes around hot springs or hydrothermal veins. It contains up to 85% mercury and is the worlds primary source of the element.
|Galena is a coumpound of sulfur and lead. It contains about 10% lead.
|Calcocite is the richest of copper ores containing about 80% copper. It is a rare mineral and most of the known deposits have been mined out. Today chalcopyrite another sulfide is the primary ore of copper. Though it contains a smaller percentage of copper it is widely distributed.