clausthalite: Meaning and Definition of

claus•thal•ite

Pronunciation: (klou'stu-līt"), [key]
— n.
  1. a rare mineral, lead selenide, PbSe, occurring in grayish, granular crystals that have a metallic luster.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.