The "'Bornite Range "'is a subrange of the Bulkley Ranges, located just northeast of Terrace on the north side of Kleanza Creek in northern British Columbia, Canada.
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When viewed under a microscope in plane polarized light, skaergaardite appears to be bright creamy white ( in the presence of bornite or chalcopyrite ) or bright white ( in the presence of digenite or chalcocite ).
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The supergene sulfide zone is present from about 35 to 65 m in depth and has significant copper enrichment, with predominantly chalcocite, and lesser digenite, covellite, and bornite, along with pyrite, minor pyrrhotite, anglesite, and gangue minerals.
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Associated copper minerals include the sulfides bornite ( Cu 5 FeS 4 ), chalcocite ( Cu 2 S ), covellite ( CuS ), digenite ( Cu 9 S 5 ); carbonates such as malachite and azurite, and rarely oxides such as cuprite ( Cu 2 O ).
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As an example the Palabora complex of South Africa has produced significant copper ( as chalcopyrite, bornite and chalcocite ), apatite, vermiculte along with lesser magnetite, linnaeite ( cobalt ), baddeleyite ( zirconium-hafnium ), and by-product gold, silver, nickel and platinum.
