tetrahedrite: Meaning and Definition of


Pronunciation: (te"tru-hē'drīt), [key]
— n.
  1. a steel-gray or blackish mineral with a brilliant metallic luster, essentially copper and antimony sulfide, (Cu, Fe, Zn, Ag,) SbS, an end member of a series of solid solutions into which arsenic enters to form tennantite: mined as an ore of copper and silver.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.