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Erzwiesite

A valid IMA mineral species
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06458540017669333202117.jpg
Erzwiesite, etc.

Kaňk, Kutná Hora, Kutná Hora District, Central Bohemian Region, Czech Republic
05168550017668480009085.jpg
Erzwiesite, etc.

Kaňk, Kutná Hora, Kutná Hora District, Central Bohemian Region, Czech Republic
06295920017668548883078.jpg
Erzwiesite, etc.

Kaňk, Kutná Hora, Kutná Hora District, Central Bohemian Region, Czech Republic
04203650017669187244484.jpg
Erzwiesite, etc.

Kaňk, Kutná Hora, Kutná Hora District, Central Bohemian Region, Czech Republic
04600120017668472008540.jpg
Erzwiesite, etc.

Kaňk, Kutná Hora, Kutná Hora District, Central Bohemian Region, Czech Republic
04394360017668504785908.jpg
Erzwiesite, etc.

Kaňk, Kutná Hora, Kutná Hora District, Central Bohemian Region, Czech Republic
06458540017669333202117.jpg
Erzwiesite, etc.

Kaňk, Kutná Hora, Kutná Hora District, Central Bohemian Region, Czech Republic
05168550017668480009085.jpg
Erzwiesite, etc.

Kaňk, Kutná Hora, Kutná Hora District, Central Bohemian Region, Czech Republic
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About ErzwiesiteHide

Formula:
Ag8Pb12Bi16S40
Colour:
black
Hardness:
3 - 3½
Specific Gravity:
7.075 (Calculated)
Crystal System:
Orthorhombic
Name:
For the district in Austria where the studied samples were collected.
Lillianite homologous series


Unique IdentifiersHide

Mindat ID:
43602
Long-form identifier:
mindat:1:1:43602:5

IMA Classification of ErzwiesiteHide

Classification of ErzwiesiteHide

Strunz-mindat (2026):
2.JB.40a

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

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

Physical Properties of ErzwiesiteHide

Transparency:
Opaque
Colour:
Black
Streak:
Black
Hardness:
3 - 3½ on Mohs scale
Hardness:
VHN50=195 - 224 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
7.075 g/cm3 (Calculated)

Optical Data of ErzwiesiteHide

Anisotropism:
rotation tints change from pale brown to pale bluish grey to dark brown.
Bireflectance:
weak to distinct (in oil).
Reflectivity:
WavelengthR1 (%)R2 (%)
470nm44.5%47.6%
546nm41.9%45.0%
589nm41.5%44.5%
650nm40.4%43.6%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 47.6%.
R1 shown in black, R2 shown in red
Colour in reflected light:
greyish white
Pleochroism:
Visible
Comments:
Pleochroism is distinct white to dark grey

Chemistry of ErzwiesiteHide

Mindat Formula:
Ag8Pb12Bi16S40
Element Weights:
Element% weight
Bi41.924 %
Pb31.175 %
S16.082 %
Ag10.820 %

Calculated from ideal end-member formula.
Bi
Pb
S
Ag
Elements listed:
Ag, Bi, Pb, S - search for minerals with similar chemistry

Crystallography of ErzwiesiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm(2/m2/m2/m) - Dipyramidal
Space Group:
Cmcm
Setting:
Cmcm
Cell Parameters:
a = 4.085(5) Å, b = 13.462(15) Å, c = 33.92(4) Å
Ratio:
a:b:c = 0.303 : 1 : 2.52
Unit Cell V:
1,865.34 ų (Calculated from Unit Cell)
Z:
4
Twinning:
not observed

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 ErzwiesiteHide

Type Locality:
ⓘ Unnamed prospect, Erzwies mining area, Bad Hofgastein, St. Johann im Pongau District, Salzburg, Austria
General Appearance of Type Material:
small black, irregular needle-like crystals mixed with galena and heyrovskýite in a quartz matrix
Place of Conservation of Type Material:
Department of Materials Engineering and Physics, University of Salzburg, Salzburg, Austria, specimen number 15009
Geological Setting of Type Material:
Unnamed prospect in the Erzwies mining district, Gastein Valley, Salzburg Province, Austria (47º5’40’’N 13º2’15’’E)
In hydrothermal vein type Ag-Pb-Zn deposits.
The vein type mineralisation of the epi- to meso-thermal type was formed at the retrograde stage of the Alpine metamorphism at temperatures at and below 300 °C.
Associated Minerals at Type Locality:
GalenaHeyrovskýiteQuartzTreasurite
Reference:
Topa, Dan; Makovicky, Emil; Putz, Hubert; Paar, Werner Hermann; Zagler, Georg (2026) Erzwiesite, Ag8Pb12Bi16S40, the natural orthorhombic N =  8 member of the lillianite homologous series. European Journal of Mineralogy, 38 (2). p.237-247. doi:10.5194/ejm-38-237-2026

Synonyms of ErzwiesiteHide

Other Language Names for ErzwiesiteHide

German:Erzwiesit

Relationship of Erzwiesite to other SpeciesHide

Member of:
Lillianite Homologous Series Group
Other Members of Lillianite Homologous Series:
AndreadiniiteCuHgAg7Pb7Sb24S48Mon. 2/m : P21/b
ArsenquatrandoriteAg17.6Pb12.8Sb38.1As11.5S96Mon. 2/m : P21/b
AschamalmitePb6-3xBi2+xS9Mon. 2/m : B2/m
BaiamareiteAg4Pb12Fe4Sb20S48Mon. 2/m
BrusnitsyniteMn3CuPbAs3Sb2S12Mon. 2/m : P21/b
Clino-oscarkempffiteAg15Pb6Sb21Bi18S72Mon. 2/m : P21/b
EskimoiteAg7Pb10Bi15S36Mon.
FizélyiteAg5Pb14Sb21S48 Mon. 2/m
GustaviteAgPbBi3S6Orth. mmm(2/m2/m2/m)
HeyrovskýitePb6Bi2S9Orth. mmm(2/m2/m2/m) : Cccm
HolubiteAg3Pb6(Sb8Bi3)S24Mon. 2/m
JasrouxiteAg16Pb4(Sb25As15)S72Tric. 1 : P1
LasmanisiteAg12Pb13Mn11Sb44S96Orth. 222 : P212121
LazerckeriteAg3.75Pb4.50(Sb7.75Bi4)S24Mon. 2/m : P21/b
LillianitePb3-2xAgxBi2+xS6Orth. mmm(2/m2/m2/m)
MenchettiiteAgPb2.40Mn1.60Sb3As2S12Mon. 2/m : P21/b
OscarkempffiteAg10Pb4(Sb17Bi9)S48Orth. mm2
OurayiteAg3Pb4Bi5S13Orth.
OyoniteAg3Mn2Pb4Sb7As4S24Mon. 2/m
QuatrandoriteAgPbSb3S6Mon. 2/m : P21/b
RamdohritePb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24Mon. 2/m
RoshchiniteAg19Pb10Sb51S96Orth. mmm(2/m2/m2/m) : Pnma
'Schirmerite'PbAgBi3S6 - Pb3Ag1.5Bi3.5S9Orth.
SenandoriteAgPbSb3S6Orth. mm2 : Pmn21
StaročeskéiteAg0.70Pb1.60(Bi1.35Sb1.35)Σ2.70S6Orth. mmm(2/m2/m2/m) : Cmcm
TarutinoiteAg3Pb7Bi7S19Mon. 2/m : B2/m
TerrywallaceiteAgPb(Sb,Bi)3S6Mon. 2/m : P21/b
TreasuriteAg7Pb6Bi15S32Mon.
UchucchacuaiteAgMnPb3Sb5S12Orth. mmm(2/m2/m2/m) : Pmmm
UstarasitePb(Bi,Sb)6S10 (?)
VikingiteAg5Pb8Bi13S30Mon. 2/m : B2/m
XilingolitePb3Bi2S6Mon.

Common AssociatesHide

Associations Based on Photo Data:
32 photos of Erzwiesite associated with QuartzSiO2
29 photos of Erzwiesite associated with StanniteCu2FeSnS4
29 photos of Erzwiesite associated with SphaleriteZnS
11 photos of Erzwiesite associated with ArsenopyriteFeAsS
6 photos of Erzwiesite associated with CovelliteCuS
4 photos of Erzwiesite associated with ChalcopyriteCuFeS2
4 photos of Erzwiesite associated with CassiteriteSnO2
3 photos of Erzwiesite associated with GalenaPbS
2 photos of Erzwiesite associated with PyrrhotiteFe1-xS

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.25iCuproneyiteCu7Pb27Bi25S68Mon. 2/m : B2/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.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.

Fluorescence of ErzwiesiteHide

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 ErzwiesiteHide

References for ErzwiesiteHide

Localities for ErzwiesiteHide

Showing 5 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.
Austria (TL)
 
  • Salzburg
    • St. Johann im Pongau District
      • Bad Hofgastein
        • Erzwies mining area
Williams et al. (2013) +1 other reference
    • Tamsweg District
      • Ramingstein
Topa et al. (2026)
Czech Republic
 
  • Central Bohemian Region
Pažout (2017)
      • Kutná Hora
Dr. Günter Grundmann collection
Slovakia
 
  • Banská Bystrica Region
    • Banská Štiavnica District
      • Banská Štiavnica
Mikuš et al. (2026)
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