pigeonite: Meaning and Definition of

pi•geon•ite

Pronunciation: (pij'u-nīt"), [key]
— n. Mineral.
  1. a monoclinic variety of pyroxene consisting mainly of a mixture of (MgFe)SiO and CaMg(SiO).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.