pyrrhotite
a common mineral, iron sulfide, approximately FeS but variable because of a partial absence of ferrous ions, occurring in massive and in crystal forms with a bronze color and metallic luster; magnetic pyrites: generally slightly magnetic.
Origin of pyrrhotite
1Words Nearby pyrrhotite
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How to use pyrrhotite in a sentence
pyrrhotite, or magnetic pyrites, is the source of about all the nickel of commerce.
The A B C of Mining | Charles A. BrambleSome of the nickel of commerce is derived from nickelliferous pyrrhotite.
The A B C of Mining | Charles A. BrambleThe pyritic ores of iron, including marcasite, pyrrhotite and mispickel, are often taken for gold by the inexperienced.
The A B C of Mining | Charles A. BrambleOne of the best-known localities is Bodenmais, in Bavaria, where it occurs with pyrrhotite in a granite matrix.
The copper deposits are mainly in well-marked fracture planes in serpentine; the ore is pyrrhotite, with or without chalcopyrite.
British Dictionary definitions for pyrrhotite
pyrrhotine (ˈpɪrəˌtiːn, -ˌtaɪn, -tɪn)
/ (ˈpɪrəˌtaɪt) /
a common bronze-coloured magnetic mineral consisting of ferrous sulphide in hexagonal crystalline form. Formula: FeS
Origin of pyrrhotite
1Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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