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bornite |
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borniteCommon copper-ore mineral, copper and iron sulfide (Cu5FeS4). Typical occurrences are found in Mount Lyell, Tasmania; Chile; Peru; and Butte, Mont. Bornite may form isometric crystals but occurs most commonly as irregular masses. Under appropriate geologic conditions, it alters to chalcocite and other copper minerals. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Acid base accounting studies of the bornite, chalcocite and magnetite mineralization demonstrate the mineralization is environmentally benign and very highly unlikely to produce acid mine drainage. Copper, with grades shown in Table 2, is mainly contained in chalcopyrite, bornite, chalcocite, and copper carbonates in the oxide zone. Copper and molybdenum mineralization on the Junin project occurs primarily as bornite, chalcopyrite and molybdenite associated with multiple staged stock work veining and breccias. |
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