Berthierite
A variety of Minerals
What is Berthierite?
Berthierite is a mineral, a sulfide of iron and antimony with formula FeSb2S4. It is steel grey in colour with a metallic lustre which can be covered by an iridescent tarnish. Because of its appearance it is often mistaken for stibnite. It was discovered in France in 1827 and named for the French chemist, Pierre Berthier (1782–1861).
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Berthierite Localities Map
See where Berthierite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
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North ZoneCentral RidgeSouth Basin
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© Robert M. Lavinsky
Quick Facts
Physical Properties
- Color
- Dark steel-grey, often with iridescent tarnish.
- Hardness (Mohs)
- 2 - 3
- Density
- 4.66 g/cm³
- Streak
- Dark brownish-grey.
Chemical Properties
- Chemical Formula
- FeSb2S4
- Elements
- Fe, S, Sb
Also Known As
BerthieriteChazellite
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