'Stibnite' definitions:
Definition of 'stibnite'
From: WordNet
noun
A soft grey mineral; the chief ore of antimony
Definition of 'Stibnite'
From: GCIDE
- Stibnite \Stib"nite\, n. (Min.) A mineral of a lead-gray color and brilliant metallic luster, occurring in prismatic crystals; sulphide of antimony; -- called also antimony glance, and gray antimony. [1913 Webster]