argentite Meaning, Definition & Usage

  1. noun a valuable silver ore consisting of silver sulfide (Ag2S)

WordNet

Ar"gen*tite noun
Etymology
L. argentum silver.
Definitions
  1. (Min.) Sulphide of silver; -- also called vitreous silver, or silver glance. It has a metallic luster, a lead-gray color, and is sectile like lead.

Webster 1913