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Neyite

A valid IMA mineral species
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About NeyiteHide

Formula:
Ag2Cu6Pb25Bi26S68
Colour:
lead gray
Lustre:
Metallic
Hardness:
Specific Gravity:
7.02
Crystal System:
Monoclinic
Name:
Named in honour of Charles Stuart Ney (1918-1975), Canadian exploration geologist. He was District Manager for Kennco Explorations (Western) Ltd. and later Quintana Minerals Corp. and was in charge of early exploration of the Lime Creek molybdenite deposit.
Ag analogue of cuproneyite.


Unique IdentifiersHide

Mindat ID:
2888
Long-form identifier:
mindat:1:1:2888:8

IMA Classification of NeyiteHide

Classification of NeyiteHide

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
3.5.1.1

3 : SULFOSALTS
5 : 2.5 < ø < 3
5.7.42

5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
7 : Sulpharsenites etc. of Pb and other metals

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
NeyIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
NeyThe 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 NeyiteHide

Metallic
Transparency:
Opaque
Colour:
Lead gray
Comment:
A characteristic yellow, and eventually Prussian blue tarnish is developed
Hardness:
2½ on Mohs scale
Tenacity:
Very brittle
Fracture:
Conchoidal
Density:
7.02 g/cm3 (Measured)    7.037 g/cm3 (Calculated)

Optical Data of NeyiteHide

Anisotropism:
moderate: light grey, yellow-green, light reddish-brown to grey-black.
Reflectivity:
WavelengthR1 (%)R2 (%)
400nm41.3%44.5%
420nm41.6%44.8%
440nm41.8%45.0%
460nm42.1%45.2%
480nm42.3%45.3%
500nm42.4%45.0%
520nm42.2%45.1%
540nm41.9%44.8%
560nm41.6%44.5%
580nm41.4%44.4%
600nm41.2%44.5%
620nm41.0%44.6%
640nm40.7%44.6%
660nm40.4%44.5%
680nm40.2%44.3%
700nm39.9%44.1%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 45.3%.
R1 shown in black, R2 shown in red
Colour in reflected light:
galena-white

Chemistry of NeyiteHide

Mindat Formula:
Ag2Cu6Pb25Bi26S68
Element Weights:
Element% weight
Bi40.576 %
Pb38.683 %
S16.283 %
Cu2.847 %
Ag1.611 %

Calculated from ideal end-member formula.

Crystallography of NeyiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 37.527(6) Å, b = 4.0705(6) Å, c = 43.701(7) Å
β = 108.801(2)°
Ratio:
a:b:c = 9.219 : 1 : 10.736
Unit Cell V:
6,319.31 ų (Calculated from Unit Cell)
Z:
4

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0005753NeyiteMakovicky E, Balic-Zunic T, Topa D (2001) The crystal structure of neyite, Ag2Cu6Pb25Bi26S68 The Canadian Mineralogist 39 1365-137620010293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.72 Å(100)
3.51 Å(100)
2.92 Å(100)
2.04 Å(60)
2.27 Å(50)
2.08 Å(40)
1.461 Å(40)

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 NeyiteHide

Synonyms of NeyiteHide

Other Language Names for NeyiteHide

Dutch:Neyiet
German:Neyit
Russian:Нейит
Simplified Chinese:针硫铋铜铅矿
Spanish:Neyita

Common AssociatesHide

Associated Minerals Based on Photo Data:
6 photos of Neyite associated with QuartzSiO2
4 photos of Neyite associated with Feldspar Group
2 photos of Neyite associated with UM1988-05-S:AgBiCuHgPb(Hg,Ag,Cu,Pb)5Pb5Bi11S27
2 photos of Neyite associated with AikinitePbCuBiS3
2 photos of Neyite associated with PyriteFeS2

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. 2 2 2 : P21 21 21
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/m 2/m 2/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.25aJunoiteCu2Pb3Bi8(S,Se)16Mon. 2/m : B2/m
2.JB.25fÁngelaiteCu2AgPbBiS4Orth. mmm (2/m 2/m 2/m) : Pnma
2.JB.25cNordströmiteCuPb3Bi7(Se4S10)Mon. 2/m : P21/m
2.JB.25iCuproneyiteCu7Pb27Bi25S68Mon. 2/m : B2/m
2.JB.25gNuffielditeCu1.4Pb2.4Bi2.4Sb0.2S7Orth. mmm (2/m 2/m 2/m)
2.JB.25hWeibullitePb5Bi8Se7S11Orth. mmm (2/m 2/m 2/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.40aBursaitePb5Bi4S11 (?)Orth.
2.JB.40UM1988-05-S:AgBiCuHgPb(Hg,Ag,Cu,Pb)5Pb5Bi11S27
2.JB.40UM1988-06-S:AgBiCuHgPb(Pb,Hg)12(Cu,Ag)3(Bi,Sb)10(S,Te)27
2.JB.40aTerrywallaceiteAgPb(Sb,Bi)3S6 Mon. 2/m : P21/b
2.JB.40aJasrouxiteAg16Pb4(Sb24As16)S72Tric. 1 : P1
2.JB.40aTarutinoiteAg3Pb7Bi7S19Mon. 2/m : B2/m
2.JB.40aOyoniteAg3Mn2Pb4Sb7As4S24Mon. 2/m
2.JB.40bHeyrovskýitePb6Bi2S9Orth. mmm (2/m 2/m 2/m) : Cccm
2.JB.40aQuatrandoriteAgPbSb3S6Mon. 2/m : P21/b
2.JB.40aErzwiesiteAg8Pb12Bi16S40Orth. mmm (2/m 2/m 2/m) : Cmcm
2.JB.40aVikingiteAg5Pb8Bi13S30Mon. 2/m : B2/m
2.JB.40aLillianitePb3-2xAgxBi2+xS6Orth. mmm (2/m 2/m 2/m)
2.JB.40bBaiamareiteAg4Pb12Fe4Sb20S48Mon. 2/m
2.JB.40aStaročeskéiteAg0.70Pb1.60(Bi1.35Sb1.35)Σ2.70S6Orth. mmm (2/m 2/m 2/m) : Cmcm
2.JB.40aRoshchiniteAg19Pb10Sb51S96Orth. mmm (2/m 2/m 2/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/m 2/m 2/m) : Pmmm
2.JB.40dSchirmeritePbAgBi3S6 - Pb3Ag1.5Bi3.5S9Orth.
2.JB.40aXilingolitePb3Bi2S6Mon.
2.JB.40aGustaviteAgPbBi3S6Orth. mmm (2/m 2/m 2/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

Notes:
HNO3 tarnishes black witi slight effervescence;HCl-develops a slight brown tarnish; KCN, FeCl, KOH-are all negative; HgCl2-develops a slight tarnish; and aqua regia-effervesces and stains dark
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 NeyiteHide

References for NeyiteHide

Localities for NeyiteHide

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.
Canada (TL)
 
  • British Columbia
    • Skeena Mining Division
      • Alice Arm
        • Kitsault
          • Patsy Creek
Piésold (2014-03-14) +4 other references
China
 
  • Gansu
    • Longnan
      • Liangdang Co.
Teng et al. (2025)
  • Jiangxi
    • Jiujiang
      • Ruichang Co.
Qiuming Chen (1990)
Iran
 
  • Zanjan Province
    • Tarom County
Mousavi Motlagh et al. (2024)
Japan
 
  • Yamagata Prefecture
    • Mogami District
      • Mogami
Yokoro et al. (2010)
Portugal
 
  • Vila Real
    • Sabrosa
Gaspar +2 other references
Romania
 
  • Bihor County
    • Nucet
Ciobanu et al. (2016)
Russia
 
  • Sakha
    • Kobyaysky District
Kostin (2021)
USA
 
  • Arizona
    • Cochise County
www.excaliburmineral.com
    • Maricopa County
Anthony et al. (1995)
  • California
    • Inyo County
      • Darwin Hills
        • Darwin Mining District
          • Darwin
Dan Evanich field collected. EDS ...
  • Colorado
    • Ouray County
Eckel et al. (1997)
    • San Juan County
      • Poughkeepsie Gulch
Eckel et al. (1997)
  • Nevada
    • Lander County
      • Lewis Mining District
Castor et al. (2004)
    • Nye County
      • Toquima Range
        • Round Mountain Mining District
www.mindat.org (n.d.) +1 other reference
    • Washoe County
      • Pyramid Mining District
        • Bluebird vein system
Castor et al. (2004)
 
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