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Nekrasovite

A valid IMA mineral species
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05189300017271925408009.jpg
Nekrasovite, etc.

Semmering basis tunnel, Gloggnitz, Neunkirchen District, Lower Austria, Austria
00609410017271925492711.jpg
Nekrasovite, etc.

Semmering basis tunnel, Gloggnitz, Neunkirchen District, Lower Austria, Austria
07234150017271925567940.jpg
Nekrasovite, etc.

Semmering basis tunnel, Gloggnitz, Neunkirchen District, Lower Austria, Austria
05189300017271925408009.jpg
Nekrasovite, etc.

Semmering basis tunnel, Gloggnitz, Neunkirchen District, Lower Austria, Austria
00609410017271925492711.jpg
Nekrasovite, etc.

Semmering basis tunnel, Gloggnitz, Neunkirchen District, Lower Austria, Austria
07234150017271925567940.jpg
Nekrasovite, etc.

Semmering basis tunnel, Gloggnitz, Neunkirchen District, Lower Austria, Austria
05189300017271925408009.jpg
Nekrasovite, etc.

Semmering basis tunnel, Gloggnitz, Neunkirchen District, Lower Austria, Austria
00609410017271925492711.jpg
Nekrasovite, etc.

Semmering basis tunnel, Gloggnitz, Neunkirchen District, Lower Austria, Austria
Hide all sections | Show all sections

About NekrasoviteHide

03956070017271925665693.jpg
Ivan Y. Nekrasov
Formula:
Cu26V2(Sn,As,Sb)6S32
Colour:
Pale brown with a pink shadow
Lustre:
Metallic
Hardness:
4½
Specific Gravity:
4.62 (Calculated)
Crystal System:
Isometric
Member of:
Germanite Group
Name:
Named in honor of Ivan Yakovlevich Nekrasov (Иван Яковлевич Некрасов) (4 October 1929, Toshkovka, Voroshilovgrad Region, USSR (now Ukraine) – 15 September 2000, Chernogolovka, Moscow, Russia), mineralogist and geochemist, Institute of Experimental Mineralogy, Moscow, Russia.
May grade into stibiocolusite.


Unique IdentifiersHide

Mindat ID:
2873
Long-form identifier:
mindat:1:1:2873:4
GUID
(UUID V4):
7a38b0eb-7412-49f0-9ef0-d3142e74be02

IMA Classification of NekrasoviteHide

Classification of NekrasoviteHide

Strunz-mindat (2025):
2.CB.30

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
C : Metal Sulfides, M: S = 1: 1 (and similar)
B : With Zn, Fe, Cu, Ag, etc.
Dana 8th ed.:
3.1.1.3

3 : SULFOSALTS
1 : ø > 4
Hey's CIM Ref.:
6.4.4

6 : Sulphosalts - Sulphostannates, Sulphogermanates,Sulpharsenates, Sulphantimonates, Sulphovanadates and Sulphohalides
4 : Sulphovanadates

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

SymbolSourceReference
NekIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
NekThe Canadian Mineralogist (2019)The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download

Physical Properties of NekrasoviteHide

Lustre:
Metallic
Transparency:
Opaque
Colour:
Pale brown with a pink shadow
Hardness:
4½ on Mohs scale
Hardness:
VHN20=286 - 338 kg/mm2 - Vickers
Tenacity:
Brittle
Density:
4.62 g/cm3 (Calculated)

Optical Data of NekrasoviteHide

Type:
Isotropic
Reflectivity:
WavelengthR
440nm22.6%
460nm23.8%
480nm25.0%
500nm25.6%
520nm26.0%
540nm26.4%
560nm26.9%
580nm27.4%
600nm28.0%
620nm28.6%
640nm29.3%
660nm29.6%
680nm29.9%
700nm30.0%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 30.0%.
Internal Reflections:
None

Chemistry of NekrasoviteHide

Mindat Formula:
Cu26V2(Sn,As,Sb)6S32
Elements listed:
As, Cu, S, Sb, Sn, V - search for minerals with similar chemistry
Common Impurities:
Fe,Zn,Se

Crystallography of NekrasoviteHide

Crystal System:
Isometric
Class (H-M):
4 3m - Hextetrahedral
Space Group:
P4 3n
Cell Parameters:
a = 10.73(5) Å
Unit Cell V:
1,235.38 ų (Calculated from Unit Cell)
Z:
1
Morphology:
small rounded grains, to less than 1 µm.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.09 Å(100)
1.894 Å(80)
1.617 Å(60)
1.230 Å(50)
1.096 Å(30)
1.033 Å(30)
2.68 Å(20)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-? alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])

Type Occurrence of NekrasoviteHide

Type Locality:
ⓘ Kairagach Au deposit, Ohangaron District, Tashkent Region, Uzbekistan
Place of Conservation of Type Material:
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 84283.
Associated Minerals at Type Locality:
BaryteBismuthCalciteChalcopyriteEmplectite
FamatiniteLaitakariteLuzoniteMawsonitePyrite
QuartzTennantite SubgroupTetrahedrite Subgroup
Reference:
Kovalenker, V.A., Evstigneeva, T.L., Malov, V.S., Trubkin, N.V., Gorshkov, A.I., Geinke, V.R. (1984) Nekrasovite Cu26V2Sn6S32 - a new mineral of the colusite group. Mineralogiceskij Zhurnal: 6: 88-97.
Download:
http://rruff.info/rruff_1.0/uploads/MZ6_88.pdf

Synonyms of NekrasoviteHide

Other Language Names for NekrasoviteHide

German:Nekrasovit
Spanish:Nekrasovita

Relationship of Nekrasovite to other SpeciesHide

Member of:
Germanite Group
Other Members of this group:
ChatkaliteCu6FeSn2S8Tet. 4 2m : P4m2
ColusiteCu13VAs3S16Iso. 4 3m : P4 3n
GermaniteCu13Fe2Ge2S16Iso. 4 3m : P4 3n
GermanocolusiteCu26V2(Ge,As)6S32Iso. 4 3m : P4 3m
Renierite(Cu1+,Zn)11Fe4(Ge4+,As5+)2S16Tet. 4 2m : P4 2c
StibiocolusiteCu13V(Sb,Sn,As)3S16Iso. 4 3m : P4 3m

Common AssociatesHide

Associated Minerals Based on Photo Data:
6 photos of Nekrasovite associated with PyriteFeS2
5 photos of Nekrasovite associated with ColusiteCu13VAs3S16
5 photos of Nekrasovite associated with ChalcopyriteCuFeS2
5 photos of Nekrasovite associated with Tennantite-(Zn)Cu6(Cu4Zn2)As4S12S
4 photos of Nekrasovite associated with SchreyeriteV3+2Ti4+3O9
4 photos of Nekrasovite associated with AnhydriteCaSO4
3 photos of Nekrasovite associated with GalenaPbS
2 photos of Nekrasovite associated with RoscoeliteK(V3+,Al)2(AlSi3O10)(OH)2
1 photo of Nekrasovite associated with ScheeliteCa(WO4)
1 photo of Nekrasovite associated with SulphurS8

Related Minerals - Strunz-mindat GroupingHide

2.CB.RichardsiteZn2CuGaS4Tet. 4 2m : I4 2m
2.CB.OkruginiteCu2SnSe3Mon. m : Bb
2.CB.HanswilkeiteKFeS2Mon. 2/m : B2/b
2.CB.AuroselenideAuSeMon. 2/m : B2/m
2.CB.Ruizhongite(Ag2◻)Pb3Ge2S8Iso. 4 3m : I4 3d
2.CB.AgmantiniteAg2MnSnS4Orth.
2.CB.TolstykhiteAu3S4Te6Tric. 1 : P1
2.CB.GachingiteAu(Te1-xSex)Orth. mmm (2/m 2/m 2/m)
2.CB.05aHawleyiteCdSIso. 4 3m : F4 3m
2.CB.05UM1998-15-S:CuFeZnCu2Fe3Zn5S10
2.CB.05aColoradoiteHgTeIso. 4 3m : F4 3m
2.CB.05aMetacinnabarHgSIso. 4 3m : F4 3m
2.CB.05aTiemanniteHgSeIso. 4 3m : F4 3m
2.CB.05aSphaleriteZnSIso. 4 3m : F4 3m
2.CB.05bSakuraiite(Cu,Zn,Fe)3(In,Sn)S4 Iso.
2.CB.05cPolhemusite(Zn,Hg)STet.
2.CB.05aRudashevskyite(Fe,Zn)SIso. 4 3m : F4 3m
2.CB.05aStilleiteZnSeIso. 4 3m : F4 3m
2.CB.05aIshiharaite(Cu,Ga,Fe,In,Zn)SIso. 4 3m : F4 3m
2.CB.07aUnnamed (Cu-Mn-Sn Sulphide)Cu2MnSnS4
2.CB.07aShenzhuangiteNiFeS2Tet. 4 2m : I4 2d
2.CB.10bTalnakhiteCu9(Fe,Ni)8S16Iso. 4 3m : I4 3m
2.CB.10bHaycockiteCu4Fe5S8Orth. 2 2 2
2.CB.10aLenaiteAgFeS2Tet. 4 2m : I4 2d
2.CB.10aGalliteCuGaS2Tet. 4 2m : I4 2d
2.CB.10aRoquesiteCuInS2Tet. 4 2m : I4 2d
2.CB.10aEskeborniteCuFeSe2Tet. 4 2m : P4 2c
2.CB.10aUM1984-30-S:CuFeSnCu2Fe2Sn3S7
2.CB.10cOmariniiteCu8Fe2ZnGe2S12Orth. 2 2 2 : I2 2 2
2.CB.10aChalcopyriteCuFeS2Tet. 4 2m : I4 2d
2.CB.10aUnnamed (Cu-Zn-In Sulphide)CuZn2InS4
2.CB.10bMooihoekiteCu9Fe9S16Tet. 4 2m : P4 2m
2.CB.10aLaforêtiteAgInS2Tet. 4 2m : I4 2d
2.CB.10bPutoraniteCu1.1Fe1.2S2Iso. m3m (4/m 3 2/m) : Pn3m
2.CB.15aVelikiteCu2HgSnS4Tet. 4 : I4
2.CB.15cUM2006-11-S:CuFeGeZnCu8(Fe,Zn)3Ge2S12 (?)
2.CB.15aHocartiteAg2(Fe2+,Zn)SnS4Tet. 4 2m : I4 2m
2.CB.15aKësteriteCu2ZnSnS4Tet. 4 : I4
2.CB.15aPirquitasiteAg2ZnSnS4Tet. 4 : I4
2.CB.15aStanniteCu2FeSnS4Tet. 4 2m : I4 2m
2.CB.15cStannoiditeCu+6Cu2+2(Fe2+,Zn)3Sn2S12Orth. 2 2 2 : I2 2 2
2.CB.15bMohiteCu2SnS3Mon.
2.CB.15aČernýiteCu2(Cd,Zn,Fe)SnS4Tet. 4 2m : I4 2m
2.CB.15aIdaiteCu5FeS6Hex.
2.CB.15aFerrokësteriteCu2FeSnS4Tet. 4 : I4
2.CB.15aKuramiteCu3SnS4Tet. 4 2m : I4 2m
2.CB.17a vArsenic-bearing RenieriteCu11GeAsFe4S16
2.CB.20MawsoniteCu6Fe2SnS8Tet. 4 2m : P4m2
2.CB.20ChatkaliteCu6FeSn2S8Tet. 4 2m : P4m2
2.CB.30FrieseiteAg2Fe5S8 (?)
2.CB.30Argyropyritenear Ag2Fe7S11
2.CB.30MaikainiteCu20(Fe,Cu)6Mo2Ge6S32Iso. m3m (4/m 3 2/m)
2.CB.30ColusiteCu13VAs3S16Iso. 4 3m : P4 3n
2.CB.30GermaniteCu13Fe2Ge2S16Iso. 4 3m : P4 3n
2.CB.30GermanocolusiteCu26V2(Ge,As)6S32Iso. 4 3m : P4 3m
2.CB.30StibiocolusiteCu13V(Sb,Sn,As)3S16Iso. 4 3m : P4 3m
2.CB.30Ovamboite Cu20(Fe,Cu,Zn)6W2Ge6S32Iso. 4 3m : P4 3n
2.CB.35aMorozeviczite(Pb,Fe)3Ge1-xS4Iso.
2.CB.35aRenierite(Cu1+,Zn)11Fe4(Ge4+,As5+)2S16Tet. 4 2m : P4 2c
2.CB.35aHemusiteCu6SnMoS8Iso.
2.CB.35bCatamarcaiteCu6GeWS8Hex. 6mm : P63mc
2.CB.35aVincienniteCu+7Cu2+3Fe2+2Fe3+2Sn(As,Sb)S16Tet.
2.CB.35aKiddcreekiteCu6SnWS8Iso. 4 3m : F4 3m
2.CB.35aPolkovicite(Fe,Pb)3(Ge,Fe)1-xS4Iso.
2.CB.40LautiteCuAsSOrth. mmm (2/m 2/m 2/m) : Pnma
2.CB.42LingbaoiteAgTe3Trig. 3m : R3m
2.CB.45CadmoseliteCdSeHex. 6mm : P63mc
2.CB.45RambergiteMnSHex. 6mm : P63mc
2.CB.45Buseckite(Fe,Zn,Mn)SHex. 6mm : P63mc
2.CB.45MaletoyvayamiteAu3Se4Te6Tric. 1 : P1
2.CB.45GreenockiteCdSHex. 6mm : P63mc
2.CB.45Wurtzite(Zn,Fe)SHex. 6mm : P63mc
2.CB.47MurchisiteCr5S6Trig. 3m (3 2/m) : P3 1c
2.CB.50ZincselenideZnSe
2.CB.50WassoniteTiSTrig. 3m (3 2/m) : R3m
2.CB.52DzhezkazganiteReMoCu2PbS6 ?Trig. 3m : R3m
2.CB.55bIsocubaniteCuFe2S3Iso. m3m (4/m 3 2/m) : Fm3m
2.CB.55aCubaniteCuFe2S3Orth. mmm (2/m 2/m 2/m)
2.CB.60RaguiniteTlFeS2Orth.
2.CB.60PicotpauliteTlFe2S3Orth. mmm (2/m 2/m 2/m) : Cmcm
2.CB.65ArgentopyriteAgFe2S3Mon. 2/m
2.CB.65SternbergiteAgFe2S3Orth. mmm (2/m 2/m 2/m)
2.CB.70SulvaniteCu3VS4Iso. 4 3m : P4 3m
2.CB.75VulcaniteCuTeOrth. mmm (2/m 2/m 2/m)
2.CB.80EmpressiteAgTeOrth. mmm (2/m 2/m 2/m)
2.CB.85MuthmanniteAuAgTe2Mon. 2/m : P2/m

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for NekrasoviteHide

References for NekrasoviteHide

Localities for NekrasoviteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Argentina
 
  • Catamarca Province
    • Andalgalá Department
Putz et al. (2009)
PUTZ +1 other reference
PUTZ +1 other reference
      • Cerro Atajo
Marquez-Zavalia et al. (2007)
Austria
 
  • Lower Austria
    • Neunkirchen District
      • Gloggnitz
Kolitsch et al. (2021)
Bulgaria
 
  • Sofia Province
    • Chelopech Municipality
Bonev +4 other references
Italy
 
  • Tuscany
    • Massa-Carrara Province
Orlandi et al. (2009)
Orlandi P. +1 other reference
Orlandi (2004)
Japan
 
  • Hokkaidō Prefecture
    • Ishikari Subprefecture
      • Sapporo City
Yuningsih et al. (2018)
    • Shiribeshi Subprefecture
CHIMIZU (1993) +1 other reference
  • Shizuoka Prefecture
    • Shimoda City
      • Rendaiji
Matsubara (2002) +1 other reference
Philippines
 
  • Luzon
    • Cordillera Administrative Region
      • Benguet Province
        • Mankayan
Fermor 2011: Ore Deposits in an ...
Serbia
 
  • Central Serbia
    • Bor District
      • Bor
Cvetković et al. (2013)
Switzerland
 
  • Valais
    • Sierre
      • Lens
Ansermet et al. (2011)
USA
 
  • Arizona
    • Cochise County
Graeme (1993)
Graeme (1993) +1 other reference
Uzbekistan (TL)
 
  • Tashkent Region
    • Ohangaron District
Kovalenker (2003)
Kovalenker et al. (1997)
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