pyrite

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Mineralisation comprises pervasively disseminated chalcopyrite and pyrite, along with native copper, fine-grained molybdenite, and minor galena, sphalerite and magnetite.

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Definitions (4)

Toggle American Heritage definitions American Heritage Dictionary (1)

  1. noun A brass-colored mineral, FeS2, occurring widely and used as an iron ore and in producing sulfur dioxide for sulfuric acid. Also called fool's gold, iron pyrites.

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Toggle GNU Webster definitions GNU Webster's 1913 (1)

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Examples (50)

  • I don't think so Had bony Johnny, the accomplished actor, heard this, he would have bowed his head in shame and decided to give up the pursuit of excitement and go back to teaching the youth of the United States that a pyrite is a native compound rock containing metals, and not a fellow with a cutlass in his teeth Johnny thought he was in the company of a Tant outlaw. —  048 - The Derrick Devil
  • Gold at the Prince of Wales showings is associated with massive to disseminated sulphides, including arsenopyrite, pyrite, pyrrhotite and chalcopyrite in silicified zones spatially associated with a diorite - sediment contact within Late Paleozoic Knob Hill Group rocks. —  Marketwire - Breaking News Releases
  • The state spent two years and $83 million digging up more than one million cubic yards of the pyrite-laden rock and created a lined landfill next to the highway, mixing a larger-than-normal amount of limestone in to neutralize it and then covering it over with more fill. —  Libertarian Blog Place
  • To that end, Wadia and his colleagues found that iron pyrite-better known as fool's gold-was several orders of magnitude better than any of the alternatives, based on both cost and abundance.
  • No detectable quantities (≈ 1 wt\%) of pyrite or oxidized forms of sulphur were found in this coal. —  CiteULike: Everyone's library
 

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Etymologies (2)

Toggle American Heritage etymologies American Heritage Dictionary (1)

  1. Middle English perides, pirite, from Old French pirite, from Latin pyrītēs, flint; see pyrites.

Toggle Century etymologies Century Dictionary (1)

  1. Formerly also pyrit; from Latin pyrites, from Greek πυρίτης, a flint, millstone, pyrite, properly adjective, pertaining to fire (πυρίτης λίθος, a mineral which strikes fire), from πῦρ, fire: see pyre. Cf. pyrites.
 

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/ˈpaɪraɪt/
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