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Cuproneyite

A valid IMA mineral species
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About CuproneyiteHide

Formula:
Cu7Pb27Bi25S68
Colour:
Silver-grey
Lustre:
Metallic
Hardness:
3
Specific Gravity:
7.113 (Calculated)
Crystal System:
Monoclinic
Name:
For the mineral neyite and its copper content.
Cu analogue of neyite.

‘Cu-enriched cuproneyite’ may be explained by aikinite nanoinclusions in cuproneyite (Ciobanu et al., 2016).


Unique IdentifiersHide

Mindat ID:
39287
Long-form identifier:
mindat:1:1:39287:3

IMA Classification of CuproneyiteHide

Classification of CuproneyiteHide

2.JB.25i

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
J : Sulfosalts of PbS archetype
B : Galena derivatives, with Pb
3.5.1.2

3 : SULFOSALTS
5 : 2.5 < ø < 3

Mineral SymbolsHide

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

SymbolSourceReference for Standard
CneyIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Pronunciation of CuproneyiteHide

Pronunciation:
PlayRecorded byCountry
Jolyon RalphUnited Kingdom

Physical Properties of CuproneyiteHide

Metallic
Transparency:
Opaque
Colour:
Silver-grey
Hardness:
Hardness:
VHN25=222 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
Perfect
Parallel to the c axis
Parting:
none
Fracture:
Irregular/Uneven
Comment:
Fracture is subparallel, perpendicular to the c axis.
Density:
7.113 g/cm3 (Calculated)

Optical Data of CuproneyiteHide

Anisotropism:
Moderate in air and strong in oil.
Bireflectance:
Bireflectance is perceptible in air and moderate in oil
Reflectivity:
WavelengthR1 (%)R2 (%)
400nm40.21%50.25%
420nm41.61%48.13%
440nm41.9% 48.12%
460nm40.47%47.57%
470nm40.37%47.09%
480nm40.63%47.17%
500nm40.71%47.25%
520nm40.18%46.63%
540nm39.48%45.85%
546nm39.30%45.74%
560nm38.84%45.39%
580nm38.38%44.67%
589nm38.26%44.27%
600nm38.20%44.46%
620nm38.04%44.18%
640nm37.84%43.76%
650nm38.05%43.91%
660nm37.79%43.59%
680nm37.21%43.45%
700nm37.72%43.37%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 50.25%.
R1 shown in black, R2 shown in red
Colour in reflected light:
Greyish white
Internal Reflections:
None
Pleochroism:
Visible
Comments:
Greyish white with faint bluish tint (darkest position) to greyish white with faint yellowish tint (lightest position).

Chemistry of CuproneyiteHide

Mindat Formula:
Cu7Pb27Bi25S68
Element Weights:
Element% weight
Pb41.612 %
Bi38.861 %
S16.218 %
Cu3.309 %

Calculated from ideal end-member formula.

Crystallography of CuproneyiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 37.432(8) Å, b = 4.0529(9) Å, c = 43.545(9) Å
β = 108.803°
Ratio:
a:b:c = 9.236 : 1 : 10.744
Unit Cell V:
6,253.58 ų (Calculated from Unit Cell)
Z:
1

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0019214CuproneyiteIlinca G, Makovicky E, Topa D, Zagler G (2012) Cuproneyite, Cu7Pb27Bi25S68, a new mineral species from Baita Bihor, Romania The Canadian Mineralogist 50 353-3702012skarn deposit of Baita Bihor, Romania0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

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 CuproneyiteHide

General Appearance of Type Material:
Irregular or short prismatic grains, of up to 300 μm in length, intergrown with lamellae and irregular patches of cosalite and Cu–Pb-rich bismuthinite derivatives.
Place of Conservation of Type Material:
Department of Mineralogy, Faculty of Geology and Geophysics, University of Bucharest, Romania (catalogue no. CATMIN 22/24).
Geological Setting of Type Material:
polymetallic mineralization related to contact metamorphism (skarn) developed around the Late Cretaceous magmatic complex at Băiţa Bihor
Associated Minerals at Type Locality:

Synonyms of CuproneyiteHide

Other Language Names for CuproneyiteHide

Related Minerals - Strunz-mindat GroupingHide

2.JB.Clino-oscarkempffiteAg15Pb6Sb21Bi18S72Mon. 2/m : P21/b
2.JB.ArsenquatrandoriteAg17.6Pb12.8Sb38.1As11.5S96Mon. 2/m : P21/b
2.JB.GinelfiteAg2(Ag0.5Fe)TlPb23.5(Sb,As)33.5S76Tric. 1 : P1
2.JB.AndreadiniiteCuHgAg7Pb7Sb24S48Mon. 2/m : P21/b
2.JB.ChukotkaiteAgPb7Sb5S15Mon. 2/m : P21/b
2.JB.SelenojunoiteCu2Pb3Bi8Se16Mon. 2/m : B2/m
2.JB.LechneriteAg10Cu4HgPb33Sb58S128Tric. 1 : P1
2.JB.Cuprosenandorite Ag16Cu8Pb24Sb72S144Orth. mm2 : Pna21
2.JB.MorleyiteAg2CuPb25Sb24As4S68.5Tric. 1 : P1
2.JB.LazerckeriteAg3.75Pb4.50(Sb7.75Bi4)S24Mon. 2/m : P21/b
2.JB.LasmanisiteAg12Pb13Mn11Sb44S96Orth. 222 : P212121
2.JB.MontpelvouxiteAgPb16Sb27As18S84Tric. 1 : P1
2.JB.SenandoriteAgPbSb3S6Orth. mm2 : Pmn21
2.JB.OscarkempffiteAg10Pb4(Sb17Bi9)S48Orth. mm2
2.JB.05DiaphoriteAg3Pb2Sb3S8Mon. 2/m : P21/b
2.JB.10CosalitePb2Bi2S5Orth. mmm(2/m2/m2/m)
2.JB.15MarriteAgPbAsS3Mon. 2/m : P21/b
2.JB.15FreieslebeniteAgPbSbS3Mon. 2/m : P21/b
2.JB.20CannizzaritePb48Bi56S132Mon. 2/m : P21/m
2.JB.20WittitePb9Bi12(S,Se)27Mon.
2.JB.25jRouxeliteCu2HgPb23Sb27S65.5Tric. 1 : P1
2.JB.25iNeyiteAg2Cu6Pb25Bi26S68Mon. 2/m : B2/m
2.JB.25aJunoiteCu2Pb3Bi8(S,Se)16Mon. 2/m : B2/m
2.JB.25fÁngelaiteCu2AgPbBiS4Orth. mmm(2/m2/m2/m) : Pnma
2.JB.25eGalenobismutitePbBi2S4Orth. mmm(2/m2/m2/m)
2.JB.25cNordströmiteCuPb3Bi7(Se4S10)Mon. 2/m : P21/m
2.JB.25gNuffielditeCu1.4Pb2.4Bi2.4Sb0.2S7Orth. mmm(2/m2/m2/m)
2.JB.25hWeibullitePb5Bi8Se7S11Orth. mmm(2/m2/m2/m) : Pnma
2.JB.25dProuditeCuPb7.5Bi9.33(S,Se)22Mon. 2/m : B2/m
2.JB.25bFelbertaliteCu2Pb6Bi8S19Mon. 2/m : B2/m
2.JB.30aJordanitePb14As6S23Mon. 2/m : P21/m
2.JB.30aGeocronitePb14Sb6S23Mon. 2/m : P21/m
2.JB.30aArsenmarcobaldiitePb12(As3.2Sb2.8)Σ6S21Tric. 1 : P1
2.JB.30bKirkiitePb10Bi3As3S19Mon. 2/m : P21/m
2.JB.30cTsugaruitePb28As15S50ClOrth. mm2 : Pnn2
2.JB.30aMarcobaldiitePb12(Sb3As2Bi)Σ6S21Tric. 1 : P1
2.JB.35dPellouxite(Cu,Ag)Pb10Sb12S27O(Cl,S)0.6Mon. 2/m : B2/m
2.JB.35eChovanitePb15-2xSb14+2xS36Ox (x ~ 0.2)Mon. 2/m : B2/m
2.JB.35aZinkenitePb9Sb22S42Hex. 6 : P63
2.JB.35cPillaitePb9Sb10S23ClO0.5Mon. 2/m : B2/m
2.JB.35bScainiitePb14Sb30S54O5Mon. 2/m : B2/m
2.JB.35fTubuliteAg2Pb22Sb20S53 Mon. m : Pb
2.JB.40aFizélyiteAg5Pb14Sb21S48 Mon. 2/m
2.JB.40aRamdohritePb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24Mon. 2/m
2.JB.40eUstarasitePb(Bi,Sb)6S10 (?)
2.JB.40a'Bursaite'Pb5Bi4S11 (?)Orth.
2.JB.40'UM1988-05-S:AgBiCuHgPb'(Hg,Ag,Cu,Pb)5Pb5Bi11S27
2.JB.40'UM1988-06-S:AgBiCuHgPb'(Pb,Hg)12(Cu,Ag)3(Bi,Sb)10(S,Te)27
2.JB.40aTerrywallaceiteAgPb(Sb,Bi)3S6Mon. 2/m : P21/b
2.JB.40aJasrouxiteAg16Pb4(Sb25As15)S72Tric. 1 : P1
2.JB.40aTarutinoiteAg3Pb7Bi7S19Mon. 2/m : B2/m
2.JB.40aOyoniteAg3Mn2Pb4Sb7As4S24Mon. 2/m
2.JB.40bHeyrovskýitePb6Bi2S9Orth. mmm(2/m2/m2/m) : Cccm
2.JB.40aQuatrandoriteAgPbSb3S6Mon. 2/m : P21/b
2.JB.40aErzwiesiteAg8Pb12Bi16S40Orth. mmm(2/m2/m2/m) : Cmcm
2.JB.40aVikingiteAg5Pb8Bi13S30Mon. 2/m : B2/m
2.JB.40aLillianitePb3-2xAgxBi2+xS6Orth. mmm(2/m2/m2/m)
2.JB.40bBaiamareiteAg4Pb12Fe4Sb20S48Mon. 2/m
2.JB.40aStaročeskéiteAg0.70Pb1.60(Bi1.35Sb1.35)Σ2.70S6Orth. mmm(2/m2/m2/m) : Cmcm
2.JB.40aRoshchiniteAg19Pb10Sb51S96Orth. mmm(2/m2/m2/m) : Pnma
2.JB.40bAschamalmitePb6-3xBi2+xS9Mon. 2/m : B2/m
2.JB.40bEskimoiteAg7Pb10Bi15S36Mon.
2.JB.40aMenchettiiteAgPb2.40Mn1.60Sb3As2S12Mon. 2/m : P21/b
2.JB.40aHolubiteAg3Pb6(Sb8Bi3)S24Mon. 2/m
2.JB.40aBrusnitsyniteMn3CuPbAs3Sb2S12Mon. 2/m : P21/b
2.JB.40aTreasuriteAg7Pb6Bi15S32Mon.
2.JB.40cOurayiteAg3Pb4Bi5S13Orth.
2.JB.40aUchucchacuaiteAgMnPb3Sb5S12Orth. mmm(2/m2/m2/m) : Pmmm
2.JB.40d'Schirmerite'PbAgBi3S6 - Pb3Ag1.5Bi3.5S9Orth.
2.JB.40aXilingolitePb3Bi2S6Mon.
2.JB.40aGustaviteAgPbBi3S6Orth. mmm(2/m2/m2/m)
2.JB.55GratonitePb9As4S15Trig. 3m : R3m
2.JB.60MarrucciiteHg3Pb16Sb18S46Mon. 2/m : B2/m
2.JB.65VurroitePb20Sn2(Bi,As)22S54Cl6Mon. 2/m : B2/b
2.JB.65TazieffitePb20Cd2(As,Bi)22S50Cl10Mon. 2/m : B2/b
2.JB.70DaliranitePbHgAs2S5Mon.

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 CuproneyiteHide

References for CuproneyiteHide

Localities for CuproneyiteHide

Showing 1 localities.

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.
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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.
Romania (TL)
 
  • Bihor County
    • Nucet
Ilinca et al. (2012) +1 other reference
 
and/or  
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