stibnite

American  

[stib-nahyt] / ˈstɪb naɪt /

noun

1. a soft mineral, antimony sulfide, Sb 2 S 3 , lead-gray in color with a metallic luster, occurring in crystals, often acicular, or in bladed masses: the most important ore of antimony.

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stibnite British  

/ ˈstɪbnaɪt /

noun

1. 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

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Etymology

Origin of stibnite

1850–55; stib(i)ne (in obsolete sense “stibnite”) + -ite ¹

Example Sentences

Antimony is a naturally forming element and metalloid that is found predominantly as sulfide mineral stibnite and has been used by humans for thousands of years.

From The Guardian

The characteristic transverse striae, invariably present on the cleavage surfaces of stibnite and cyanite are due to secondary twinning along glide-planes, and have resulted from the bending of the crystals.

From Project Gutenberg

We have been in much doubt as to the term to introduce into the text, as the English "stibnite" carries too much precision of meaning.

From Project Gutenberg

For the preparation of metallic antimony the crude stibnite is first liquated, to free it from earthy and siliceous matter, and is then roasted in order to convert it into oxide.

From Project Gutenberg

The antimony sulphide, stibnite, is the source of most of the world's production of this metal.

From Project Gutenberg