Minerals
Nekrasovite
nekrasovite
Cu13VSn3S16
Nekrasovite Mineral Specimen For Sale — via www.dakotamatrix.com · Source
Overview
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 Kayragach (Qayragʻoch) Au-Te ore deposit, Ohangaron District, Tashkent Region, eastern Uzbekistan and named for Russian mineralogist Ivan Yakovlevich Nekrasov.
Identification characteristics
- Mohs hardness 4.5