Found 2 items, similar to Stibnite.
English → English (WordNet) Definition: stibnite stibnite n : a soft gray mineral; the chief ore of antimony
English → English (gcide) Definition: Stibnite 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]