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pyrites

Line breaks: pyr|ites
Pronunciation: /pʌɪˈrʌɪtiːz
 
/
(also iron pyrites; Mineralogy pyrite)

Definition of pyrites in English:

noun

[mass noun]
A shiny yellow mineral consisting of iron disulphide and typically occurring as intersecting cubic crystals. See also copper pyrites.
Example sentences
  • In terms of finance alone, last night was the difference between digging gold or iron pyrites.
  • The mordenite is associated with a hemispherical form of pale yellow calcite and cubic pyrite.
  • Many conclude that because pyrite is cubic, pyrrhotite must be hexagonal, as it often appears.

Origin

late Middle English (denoting a mineral used for kindling fire): via Latin from Greek puritēs 'of fire', from pur 'fire'.

Derivatives

pyritic

1
Pronunciation: /-ˈrɪtɪk/
adjective
Example sentences
  • Its down-dip sulfide ores were sideritic and pyritic, with golden barite forming one of the gangue minerals.
  • The beds at this level are distinctly pyritic and the basal Psiloceras-bearing limestone is underlain by a 20 m thick black shale.
  • The mill produced a lead concentrate, a zinc concentrate, and pyritic tailings.

pyritize

2
(also pyritise) verb
Example sentences
  • Because the latter conditions were favorable for the formation of iron sulfides, the fossils were pyritized.
  • Pyrite is ubiquitous in marine sediments - so why are pyritised soft-bodied fossils so rare?
  • Many of the stelleroids are relatively complete, but flattened and pyritized, although preservation of some specimens is exquisite.

Definition of pyrites in:

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