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.

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

References

• Mindat data with locations
• Webmineral data
• Mineral Data Publishing - PDF