Stibnite

Stibnite is a mineral. Its chemical formula is Sb₂S₃. 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.

Stibnite Media

A microscopic section of stibnite
Stibnite from Herja mine, Romania
Needles of stibnite within a transparent crystal of calcite (size: 4.5×3.5×1.8 cm)
Ray of sharp, striated, iridescent metallic stibnite blades
Crystal structure of en:stibnite
Antimonite crystals (longest crystal: 7 cm) intergrown with calcite (length: 3 cm) from Xikuangshan Mine

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