| Iron and copper sulfides of this region are predominately pyrite, pyrrhotite, chalcopyrite, arsenopyrite, bornite, and marcasite. |
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| Lovering, Tweto, and Lovering noted small veinlets of tetrahedrite cutting interbanded chalcopyrite and bornite. |
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| Some of the best bornite specimens consist of plates of 5-mm blue-gray crystals upon which are perched large, complex chalcopyrite crystals. |
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| Fine specimens of silver associated with stromeyerite, bornite, and chalcopyrite have been recovered from the Silver King mine, Pinal County. |
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| Other minerals suggested as coloring agents are malachite, tenorite, and bornite. |
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| In the periphery of the oxidation, copper mineralization occurs as chalcopyrite, bornite, tennantite and mispickel. |
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| Minor zones of covelline and bornite have also been detected. |
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| When it rises through fractures in the surrounding solid rocks, these metals are precipitated, normally as the minerals chalcopyrite, bornite, and molybdenite. |
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| Preparations were underway to make the Bornite camp fully operational by mid-July with drilling activities expected to be completed by September. |
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| The opaque minerals in these rocks consist of chalcopyrite, bornite, malachite, azurite and Fe-oxide. |
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| The primary and supergene sulphide mineralised zone consists of chalcocite, pyrite, and bornite vein swarms which are silver rich. |
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| The intercept correlates with a zone of chalcopyrite and bornite mineralisation in the porphyry and surrounding metasediment. |
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| Mineralization consists of megascopic and microscopic molybdenite, pyrite, minor chalcopyrite and rare bornite. |
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| The transition zone is composed of chalcocite and bornite with malachite on fractures and a minor amount of chalcopyrite. |
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| Other minerals present in the upper zone include bornite, covellite, chalcocite, prousite, hematite, kaolin, and illite-smectite. |
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| Hypogene ore minerals are chalcopyrite, bornite, and chalcocite. |
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| Primary minerals, in the form of bornite and chalcopyrite, also occur in the underlying volcanic rocks comprising pyroclastics and rhyolitic lavas. |
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| Mineralization principally consists of copper oxides, malachite, azurite, chrysocolla, and atacamite and to lesser extent chalcopyrite and bornite. |
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