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pyrites

   Also found in: Encyclopedia, Wikipedia, Hutchinson 0.04 sec.
py·ri·tes  (p-rtz, prts)
n. pl. pyrites
Any of various natural metallic sulfide minerals, especially of iron.
[Latin pyrts, from Greek purts (lithos), fire (stone), flint, from pr, fire; see paw in Indo-European roots.]
pyrites [pie-rite-eez]
Noun
pl -tes
1. same as pyrite
2. a disulphide of a metal, esp. of copper and tin
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.pyrites - any of various metallic-looking sulfides (of which pyrite is the commonest)
sulfide, sulphide - a compound of sulphur and some other element that is more electropositive
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My host says that the two principal improvements introduced by foreigners have been, first, reducing by previous roasting the copper pyrites -- which, being the common ore in Cornwall, the English miners were astounded on their arrival to find thrown away as useless: secondly, stamping and washing the scoriae from the old furnaces -- by which process particles of metal are recovered in abundance.
The Voyage of the Beagle by Darwin, Charles View in context
Straight from the ocean's depths rose towering cliffs, shot with brown and blues and greens--withered moss and lichen and the verdigris of copper, and everywhere the rusty ocher of iron pyrites.
The Land That Time Forgot by Burroughs, Edgar Rice View in context
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