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pyrrhotite

pyrrhotite

pyrrhotite Sentence Examples

  • Crystals were first found in Cornwall (at Wheal Jane, near Truro, associated with pyrrhotite) by J.

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  • PYRRHOTITE, a mineral species consisting of iron sulphide and crystallizing in the hexagonal system.

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  • Prospect, at the base of which there is a vein of pyrrhotite, with small quantities of nickel and copper.

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  • Magnetic pyrites or pyrrhotite has a composition varying between Fe7S8 and Fe8S9, i.e.

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  • Pyrrhotite >>

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  • In the Bay Complex narrow zones of bleached rock are rich in calcite, chlorite and pyrite and contain minor chalcopyrite and pyrrhotite.

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  • Other minerals present include diopside, pargasite, spinel, phlogopite, apatite, graphite, pyrrhotite and zircon (Davidson 1943 ).

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  • The sulfide minerals recorded from the lodes comprise pyrite, pyrrhotite, chalcopyrite, galena, sphalerite and arsenopyrite.

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  • Crystals were first found in Cornwall (at Wheal Jane, near Truro, associated with pyrrhotite) by J.

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  • PYRRHOTITE, a mineral species consisting of iron sulphide and crystallizing in the hexagonal system.

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  • The copper deposits are mainly in well-marked fracture planes in serpentine; the ore is pyrrhotite, with or without chalcopyrite.

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  • Prospect, at the base of which there is a vein of pyrrhotite, with small quantities of nickel and copper.

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  • Newfoundland yields cupreous pyrites, worked at Pilley's Island, whilst the nickeliferous pyrites of Sudbury in Ontario is partly magnetic (see Pyrrhotite).

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  • Magnetic pyrites or pyrrhotite has a composition varying between Fe7S8 and Fe8S9, i.e.

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  • The sulfide minerals recorded from the lodes comprise pyrite, pyrrhotite, chalcopyrite, galena, sphalerite and arsenopyrite.

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