What is Stibnite?
[[File:Stibnite - Herja mine, Maramures, Romania.jpg|thumb|Stibnite]] '''Stibnite''' is a [[mineral]]. Its chemical formula is [[antimony trisulfide|Sb<sub>2</sub>S<sub>3</sub>]]. It is the main [[ore]] of [[antimony]]. The [[American Museum of Natural History]] has a huge crystal of stibnite. Stibnite is soft, with a [[Mohs hardness]] of 2. Its [[specific gravity]] is 4.63. {{science-stub}} [[Category:Minerals]] [[Category:Antimony compounds]]