Information om | Engelska ordet PENTLANDITE

Exempel på hur man kan använda PENTLANDITE i en mening

• Nickeline is formed by hydrothermal modification of ultramafic rocks and associated ore deposits, and may be formed by replacement of nickel-copper bearing sulfides (replacing pentlandite, and in association with copper arsenic sulfides), or via metasomatism of sulfide-free ultramafic rocks, where metasomatic fluids introduce sulfur, carbonate, and arsenic.
• It occurs with nickeline, gersdorffite, pentlandite, chalcopyrite, pyrrhotite, galena, tetrahedrite and dyscrasite in hydrothermal deposits.
• Pyrrhotite is associated and mined with other sulfide minerals like pentlandite, pyrite, chalcopyrite, and magnetite, and has been found globally.
• It is a rare secondary mineral formed by hydration or alteration of the primary nickel and iron bearing minerals, chromite, pentlandite, pyrrhotite, and millerite, during the serpentinization of ultramafic rocks.
• Violarite is produced at the expense of both pentlandite and pyrrhotite, via the following basic reaction;.
• Minerals in the Temagami area include aragonite, brochantite, calcite, Chalcopyrite, jasper, magnetite, molybdenite, pentlandite, pyrite, pyrrhotite, serpentine, and talc.
• Mackinawite occurs in serpentinized peridotites as a hydrothermal alteration product, in meteorites, and in association with chalcopyrite, cubanite, pentlandite, pyrrhotite, greigite, maucherite, and troilite.
• The mineralisation is essentially remobilised nickel sulphide (pentlandite mineral) and is of simple metallurgy, producing some of the world's highest-grade nickel sulphide concentrate.
• Cubanite occurs in high temperature hydrothermal mineral deposits with pyrrhotite and pentlandite as intergrowths with chalcopyrite.
• It occurs in association with native gold and magnetite in placers; with copper, heazlewoodite, pentlandite, violarite, chromite, and.
• Scheelite is accompanied by pyrrhotite, pyrite, chalcopyrite, molybdenite, apatite and beryl; less common are minerals of the tungstenite‐molybdenite solid solution, marcasite, galena, arsenopyrite, sphalerite, pentlandite, magnetite and hematite.
• Mooihoekite occurs in association with haycockite, magnetite, troilite, cuprian pentlandite, mackinawite, sphalerite, and moncheite in the Mooihoek mine and with haycockite, native copper, troilite, pentlandite, cubanite and magnetite in the Duluth complex.
• It occurs associated with spionkopite, sphalerite, tetrahedrite, chalcopyrite, malachite, azurite, brochantite, chrysocolla, cervantite, stibiconite, hemimorphite and calcite in the type locality; and with spionkopite, chalcopyrite, cobaltian pentlandite, magnetite, chromite, andradite, chlorite, diopside in the Eretria deposit.
• It is formed in this way by removal of sulfur from pentlandite or other nickeliferous sulfide minerals during metamorphism or metasomatism.
• It occurs in association with bornite, pyrite, chalcopyrite, chalcocite, digenite, idaite, stannite, stannoidite, pyrrhotite, pentlandite, tennantite, enargite, luzonite–famatinite, kiddcreekite, mohite, native bismuth, galena and sphalerite.
• Studies identified the presence of 25 different minerals, including enstatite, ferrosilite, serpentine group, barringerite, diopside, fayalite, ferrosilite, magnetite, pentlandite, pyrrhotite.

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