PYRITE
pyrite, iron pyrite, fool's gold
(noun) a common mineral (iron disulfide) that has a pale yellow color
Source: WordNet® 3.1
Etymology
Noun
pyrite (plural pyrites)
(mineral) The common mineral iron disulfide (FeS2), of a pale brass-yellow color and brilliant metallic luster, crystallizing in the isometric system.
(usually as a plural: pyrites) Any metallic-looking sulphide, such as the above, which is the most common.
(solid state chemistry) (usually as a plural: pyrites) Any metal dichalcogenide that is isostructural to the common mineral.
Synonyms
• fool's gold
• iron pyrites
Hyponyms
• iron pyrite
• pyrrhotite
Anagrams
• typier
Source: Wiktionary
Pyr"ite, n.; pl. Pyrites. Etym: [Cf. F. pyrite. See Pyrites.] (Min.)
Definition: 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.
Source: Webster’s Unabridged Dictionary 1913 Edition