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chalcopyrite |
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chalcopyriteCopper iron sulphide mineral, CuFeS2, the most common ore of copper. It is brassy yellow in colour and may have an iridescent surface tarnish. It occurs in many different types of mineral vein, in rocks ranging from basalt to limestone. |
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The partners expect the annual production of electrolytic copper to be approximately 70,000 tons from the new facilities, and it will replace an expected decline in Morenci's heap leach output later this decade with the increased ration of chalcopyrite ores which are difficult to be processed at the existing complex. Highly anomalous numbers of chalcopyrite grains, an important ore mineral for copper, were recovered from samples collected on one of the major rivers in the Coral Rapids area. Scientists prepare extremely thin films of chalcopyrite and layer them to build semiconductors. |
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