Linnaeite is a cobalt sulfide mineral with the composition Co+2Co+32S4.

It was discovered in 1845 in Västmanland, Sweden, and was named to honor Carl Linnaeus (1707–1778).

[2] Linnaeite forms a series with polydymite, Ni+2Ni+32S4.

[5] Linnaeite is found in hydrothermal veins with other cobalt and nickel sulfides in many localities around the world.

This article about a specific sulfide mineral is a stub.