Meaning of covellite

co•vel•lite

Pronunciation: (kō-vel'īt, kō'vu-līt"), [key]
— n.
  1. a mineral, copper sulfide, CuS, indigo in color and usually occurring as a massive coating on other copper minerals.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.