stibnite

[ stib-nahyt ]
/ ˈstɪb naɪt /

noun

a soft mineral, antimony sulfide, Sb2S3, lead-gray in color with a metallic luster, occurring in crystals, often acicular, or in bladed masses: the most important ore of antimony.

Origin of stibnite

1850–55; stib(i)ne (in obsolete sense “stibnite”) + -ite1

Example sentences from the Web for stibnite

British Dictionary definitions for stibnite

stibnite
/ (ˈstɪbnaɪt) /

noun

a soft greyish mineral consisting of antimony sulphide in orthorhombic crystalline form. It occurs in quartz veins and is the chief ore of antimony. Formula: Sb 2 S 3

Word Origin for stibnite

C19: from obsolete stibine stibnite + -ite 1