Dictionary![]() ![]() py•ritePronunciation: (pī'rīt), [key] —n. a very common brass-yellow mineral, iron disulfide, FeS2, with a metallic luster, burned to sulfur dioxide in the manufacture of sulfuric acid: chemically similar to marcasite, but crystallizing in the isometric system. Also,pyrites.Also called iron pyrites. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
|