berthierite
Sign in to saveBerthierite is a mineral, a sulfide of iron and antimony with formula . It is steel grey in colour with a metallic lustre, which an iridescent tarnish can cover. Because of its appearance, it is often mistaken for stibnite (, an antimony trisulfide mineral, free of sulfide).
Key facts
- Mineral.class
- Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m)
- Mineral.name
- Berthierite
- Mineral.image
- Berthierite-224182.jpg
- Mineral.IMAsymbol
- Btr
- Mineral.strunz
- 2.HA.20
- Mineral.system
- Orthorhombic
- Mineral.symmetry
- Pnam
- Mineral.color
- Steel grey
- Mineral.cleavage
- Poor/indistinct
- Mineral.mohs
- 2–3
- Mineral.luster
- Metallic
- Mineral.diaphaneity
- Opaque
- Mineral.gravity
- 4.64
via Wikipedia infobox
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Encyclopedic overview
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- References
- External links
Berthierite is a mineral, a sulfide of iron and antimony with formula . It is steel grey in colour with a metallic lustre, which an iridescent tarnish can cover. Because of its appearance, it is often mistaken for stibnite (, an antimony trisulfide mineral, free of sulfide).
It was discovered in France in 1827 and named for the French chemist, Pierre Berthier (1782–1861).
Excerpted from Wikipedia’s “berthierite” article, available under the CC BY-SA 4.0 licence.
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