Linnaeite
A variety of Linnaeite Subgroup
What is Linnaeite?
Linnaeite is a cobalt sulfide mineral with the composition CoCo2S4. It was discovered in 1845 in Västmanland, Sweden, and was named to honor Carl Linnaeus (1707–1778). Linnaeite forms a series with polydymite, NiNi2S4. Linnaeite is found in hydrothermal veins with other cobalt and nickel sulfides in many localities around the world.
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Linnaeite Localities Map
See where Linnaeite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Map preview
North ZoneCentral RidgeSouth Basin
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© Robert M. Lavinsky
Quick Facts
Physical Properties
- Color
- Grey, violet
- Hardness (Mohs)
- 4.5 - 5.5
- Streak
- Greyish black
Chemical Properties
- Chemical Formula
- Co2+Co3+2S4
- Elements
- Co, S
Also Known As
LinnaeiteKobaltkies (of Hausmann)KoboldineLinneite
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