Nekrasovite

See Nekrasov Cossacks for another meaning

Nekrasovite is a rare copper vanadium sulfosalt mineral with formula Cu₂₆V₂(Sn,As,Sb)₆S₃₂. It crystallizes in the isometric system and occurs as small grains in ore aggregates. It is a brown opaque metallic mineral with Mohs hardness of 4.5 and a specific gravity of 4.62.

It was first described in 1984 in the Khayragatsch ore deposit of eastern Uzbekistan and named for Russian mineralogist Ivan Yakovlevich Nekrasov (born 1929).

References

Mindat data with locations
Webmineral data
Mineral Data Publishing - PDF

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