pyrite Meaning, Definition & Usage

  1. noun a common mineral (iron disulfide) that has a pale yellow color
    fool's gold; iron pyrite.

WordNet

Pyr"ite noun
Etymology
Cf. F. pyrite. See Pyrites.
Wordforms
plural Pyrites
Definitions
  1. (Min.) A common mineral of a pale brass-yellow color and brilliant metallic luster, crystallizing in the isometric system; iron pyrites; iron disulphide.
    Hence sable coal his massy couch extends, And stars of gold the sparkling pyrite blends. E. Darwin.

Webster 1913