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Argentopyrite

A valid IMA mineral species - grandfathered
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About ArgentopyriteHide

Formula:
AgFe2S3
Colour:
Bronze-brown, tarnishing to lead-grey to blue-gray.
Lustre:
Metallic
Hardness:
3½ - 4
Specific Gravity:
4.25
Crystal System:
Monoclinic
Name:
Named for its relationship to pyrite and silver content.
Dimorph of:
Often pseudomorphed by pyrite.


Unique IdentifiersHide

Mindat ID:
299
Long-form identifier:
mindat:1:1:299:8
GUID
(UUID V4):
2cdde96c-47be-488e-abbc-bafa6024fa24

IMA Classification of ArgentopyriteHide

Approved, 'Grandfathered' (first described prior to 1959)

Classification of ArgentopyriteHide

2.CB.65

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 7th ed.:
2.9.13.2
2.9.13.2

2 : SULFIDES
9 : AmBnXp, with (m+n):p = 1:1
3.2.17

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
2 : Sulphides etc. of Ag

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
AgpyIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
Kretz (1983)Kretz, R. (1983) Symbols of rock-forming minerals. American Mineralogist, 68, 277–279.
Siivolam & Schmid (2007)Siivolam, J. and Schmid, R. (2007) Recommendations by the IUGS Subcommission on the Systematics of Metamorphic Rocks: List of mineral abbreviations. Web-version 01.02.07. IUGS Commission on the Systematics in Petrology. download
Whitney & Evans (2010)Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185–187 doi:10.2138/am.2010.3371
ArpThe 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 ArgentopyriteHide

Metallic
Transparency:
Opaque
Colour:
Bronze-brown, tarnishing to lead-grey to blue-gray.
Streak:
Grey.
Hardness:
3½ - 4 on Mohs scale
Hardness:
VHN100=225 - 242 kg/mm2 - Vickers
Tenacity:
Brittle
Fracture:
Irregular/Uneven
Density:
4.25 g/cm3 (Measured)    4.27 g/cm3 (Calculated)

Optical Data of ArgentopyriteHide

Anisotropism:
Strong - deep blue to pale blue-grey
Reflectivity:
WavelengthR1R2
400nm20.5% 29.4%
420nm21.6% 30.2%
440nm22.7% 30.8%
460nm23.8% 31.6%
480nm24.6% 32.2%
500nm25.3% 32.8%
520nm25.8% 33.5%
540nm26.3% 34.1%
560nm26.8% 34.8%
580nm27.4% 35.6%
600nm28.1% 36.3%
620nm28.7% 36.9%
640nm29.4% 37.5%
660nm30.0% 38.0%
680nm30.4% 38.4%
700nm30.9% 38.7%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 38.7%.
R1 shown in black, R2 shown in red
Colour in reflected light:
Greyish to yellowish white

Chemistry of ArgentopyriteHide

Mindat Formula:
AgFe2S3
Common Impurities:
Cu,As

Crystallography of ArgentopyriteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 6.6902(2) Å, b = 11.4497(4) Å, c = 6.4525(2) Å
β = 90.2420(8)°
Ratio:
a:b:c = 0.584 : 1 : 0.564
Unit Cell V:
494.26 ų
Z:
4
Twinning:
Pseudohexagonal twins, lamellar twins
Comment:
Space group P1121/n (non-standard setting). Pseudo-orthorhombic. Originally assumed to have space group Pmmn, 6.639, 11.463, 6.452 A.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0004994ArgentopyriteYang H, Pinch W W, Downs R T (2009) Crystal structure of argentopyrite, AgFe2S3, and its relationship with cubanite American Mineralogist 94 1727-17302009Joachimstal, Bohemia, Czech Republic, type sample0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.81 Å(30)
5.68 Å(5)
4.67 Å(20)
4.30 Å(20)
3.62 Å(50)
3.34 Å(100)
3.32 Å(100)
3.23 Å(10)
3.11 Å(40)
2.96 Å(10)
2.90 Å(30)
2.88 Å(30)
2.82 Å(5)
2.63 Å(10)
2.59 Å(20)
2.52 Å(5)
2.43 Å(30)
2.32 Å(10)
2.28 Å(10)
2.18 Å(10)
2.12 Å(10)
2.04 Å(5)
2.02 Å(5)
1.99 Å(10)
1.93 Å(50)
1.91 Å(40)
1.87 Å(5)
1.81 Å(70)
1.75 Å(10)
1.67 Å(10)
1.66 Å(10)
1.61 Å(10)
1.597 Å(10)
1.544 Å(10)
1.458 Å(10)
1.450 Å(5)
1.436 Å(5)
Comments:
ICDD 7-347 Freiberg, Saxony, Germany

Geological EnvironmentHide

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

Type Occurrence of ArgentopyriteHide

Place of Conservation of Type Material:
Royal Ontario Museum, Toronto, Ontario, Canada (type).
National Museum of Natural History, Washington, D.C., USA (type).

Other Language Names for ArgentopyriteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
55 photos of Argentopyrite associated with ProustiteAg3AsS3
31 photos of Argentopyrite associated with PyrargyriteAg3SbS3
26 photos of Argentopyrite associated with ArsenicAs
22 photos of Argentopyrite associated with CalciteCaCO3
12 photos of Argentopyrite associated with SilverAg
10 photos of Argentopyrite associated with StephaniteAg5SbS4
10 photos of Argentopyrite associated with AcanthiteAg2S
7 photos of Argentopyrite associated with SphaleriteZnS
7 photos of Argentopyrite associated with DyscrasiteAg3Sb
7 photos of Argentopyrite associated with ChalcopyriteCuFeS2

Related Minerals - Strunz-mindat GroupingHide

2.CB.AgmantiniteAg2MnSnS4Orth.
2.CB.RichardsiteZn2CuGaS4Tet. 4 2m : I4 2m
2.CB.GachingiteAu(Te1-xSex)Orth. mmm (2/m 2/m 2/m)
2.CB.TolstykhiteAu3S4Te6Tric. 1 : P1
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.OkruginiteCu2SnSe3Mon. m : Bb
2.CB.05aColoradoiteHgTeIso. 4 3m : F4 3m
2.CB.05aHawleyiteCdSIso. 4 3m : F4 3m
2.CB.05aMetacinnabarHgSIso. 4 3m : F4 3m
2.CB.05cPolhemusite(Zn,Hg)STet.
2.CB.05bSakuraiite(Cu,Zn,Fe)3(In,Sn)S4 Iso.
2.CB.05aSphaleriteZnSIso. 4 3m : F4 3m
2.CB.05aStilleiteZnSeIso. 4 3m : F4 3m
2.CB.05aTiemanniteHgSeIso. 4 3m : F4 3m
2.CB.05UM1998-15-S:CuFeZnCu2Fe3Zn5S10
2.CB.05aRudashevskyite(Fe,Zn)SIso. 4 3m : F4 3m
2.CB.05aIshiharaite(Cu,Ga,Fe,In,Zn)SIso. 4 3m : F4 3m
2.CB.07aShenzhuangiteNiFeS2Tet. 4 2m : I4 2d
2.CB.07aUnnamed (Cu-Mn-Sn Sulpide)Cu2MnSnS4
2.CB.10aChalcopyriteCuFeS2Tet. 4 2m : I4 2d
2.CB.10aEskeborniteCuFeSe2Tet. 4 2m : P4 2c
2.CB.10aGalliteCuGaS2Tet. 4 2m : I4 2d
2.CB.10bHaycockiteCu4Fe5S8Orth. 2 2 2
2.CB.10aLenaiteAgFeS2Tet. 4 2m : I4 2d
2.CB.10bMooihoekiteCu9Fe9S16Tet. 4 2m : P4 2m
2.CB.10bPutoraniteCu1.1Fe1.2S2Iso. m3m (4/m 3 2/m) : Pn3m
2.CB.10aRoquesiteCuInS2Tet. 4 2m : I4 2d
2.CB.10bTalnakhiteCu9(Fe,Ni)8S16Iso. 4 3m : I4 3m
2.CB.10aLaforêtiteAgInS2Tet. 4 2m : I4 2d
2.CB.10aUnnamed (Cu-Zn-In Sulphide)CuZn2InS4
2.CB.10aUM1984-30-S:CuFeSnCu2Fe2Sn3S7
2.CB.10cOmariniiteCu8Fe2ZnGe2S12Orth. 2 2 2 : I2 2 2
2.CB.15aČernýiteCu2(Cd,Zn,Fe)SnS4Tet. 4 2m : I4 2m
2.CB.15aFerrokësteriteCu2FeSnS4Tet. 4 : I4
2.CB.15aHocartiteAg2(Fe2+,Zn)SnS4Tet. 4 2m : I4 2m
2.CB.15aIdaiteCu5FeS6Hex.
2.CB.15aKësterite Cu2ZnSnS4Tet. 4 : I4
2.CB.15aKuramiteCu3SnS4Tet. 4 2m : I4 2m
2.CB.15bMohiteCu2SnS3Mon.
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.15aVelikiteCu2HgSnS4Tet. 4 : I4
2.CB.15cUM2006-11-S:CuFeGeZnCu8(Fe,Zn)3Ge2S12 (?)
2.CB.17a vArsenic-bearing RenieriteCu11GeAsFe4S16
2.CB.20ChatkaliteCu6FeSn2S8Tet. 4 2m : P4m2
2.CB.20MawsoniteCu6Fe2SnS8Tet. 4 2m : P4m2
2.CB.30Argyropyritenear Ag2Fe7S11
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.30NekrasoviteCu26V2(Sn,As,Sb)6S32Iso. 4 3m : P4 3n
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.30MaikainiteCu20(Fe,Cu)6Mo2Ge6S32Iso. m3m (4/m 3 2/m)
2.CB.30FrieseiteAg2Fe5S8 (?)
2.CB.35aHemusiteCu6SnMoS8Iso.
2.CB.35aKiddcreekiteCu6SnWS8Iso. 4 3m : F4 3m
2.CB.35aPolkovicite(Fe,Pb)3(Ge,Fe)1-xS4Iso.
2.CB.35aRenierite(Cu1+,Zn)11Fe4(Ge4+,As5+)2S16Tet. 4 2m : P4 2c
2.CB.35aVincienniteCu+7Cu2+3Fe2+2Fe3+2Sn(As,Sb)S16Tet.
2.CB.35aMorozeviczite(Pb,Fe)3Ge1-xS4Iso.
2.CB.35bCatamarcaiteCu6GeWS8Hex. 6mm : P63mc
2.CB.40LautiteCuAsSOrth. mmm (2/m 2/m 2/m) : Pnma
2.CB.42LingbaoiteAgTe3Trig. 3m : R3m
2.CB.45CadmoseliteCdSeHex. 6mm : P63mc
2.CB.45GreenockiteCdSHex. 6mm : P63mc
2.CB.45Wurtzite(Zn,Fe)SHex. 6mm : P63mc
2.CB.45RambergiteMnSHex. 6mm : P63mc
2.CB.45Buseckite(Fe,Zn,Mn)SHex. 6mm : P63mc
2.CB.45MaletoyvayamiteAu3Se4Te6Tric. 1 : P1
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.55aCubaniteCuFe2S3Orth. mmm (2/m 2/m 2/m)
2.CB.55bIsocubaniteCuFe2S3Iso. m3m (4/m 3 2/m) : Fm3m
2.CB.60PicotpauliteTlFe2S3Orth. mmm (2/m 2/m 2/m) : Cmcm
2.CB.60RaguiniteTlFeS2Orth.
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

Fluorescence of ArgentopyriteHide

Not fluorescent in UV

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.
Industrial Uses:
Minor silver ore

Internet Links for ArgentopyriteHide

References for ArgentopyriteHide

Reference List:

Localities for ArgentopyriteHide

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
 
  • Jujuy Province
    • Rinconada Department
      • Mina Pirquitas
Board et al. (2011)
Australia
 
  • New South Wales
    • Yancowinna Co.
      • Broken Hill district
Mineralogical Society of America - ...
L.Lawrence +1 other reference
  • Queensland
    • City of Mount Isa
Canadian Mineralogist (1984)
Austria
 
  • Carinthia
    • Sankt Veit an der Glan District
      • Hüttenberg
Niedermayr et al. (1995)
    • Spittal an der Drau District
      • Rennweg am Katschberg
        • Pölla valley
          • Lanisch
C.Auer (2020)
  • Salzburg
    • Tamsweg District
      • Muhr
        • Rotgülden
          • Lower Rotgülden lake
Auer (2019)
    • Zell am See District
      • Rauris
        • Hochtor area
Pichler (2009)
  • Tyrol
    • Innsbruck-Land District
      • Axams
Vavtar (1995)
Bolivia
 
  • Potosí
    • Antonio Quijarro Province
      • Porco Municipality
        • Agua de Castilla
Paul MPB Meulenbeld collection photo ID 1115803 (XRD confirmation by Dr Sabine Verryn)
    • Chayanta Province
      • Colquechaca Municipality
Wilson (2001)
Bosnia and Herzegovina
 
  • Federation of Bosnia and Herzegovina
    • Central Bosnia Canton
      • Gornji Vakuf-Uskoplje
Jurković et al. (1994)
Canada
 
  • British Columbia
    • Greenwood Mining Division
      • Beaverdell
Robert O. Meyer collection
    • Slocan Mining Division
      • Sandon
Mauthner (1996)
  • Northwest Territories
    • Mackenzie Mountains
Hewton (2012)
  • Ontario
    • Greater Sudbury
      • Garson Township
Ames et al. (TGI)
Chile
 
  • Tarapacá
    • Tamarugal Province
      • Pica
        • Collahuasi mining district
- (2003)
Czech Republic
 
  • Central Bohemian Region
Dr Gunter Grundmann collection
  • Karlovy Vary Region
    • Karlovy Vary District
Am Min 39 (1954) +1 other reference
C.Auer (2018)
  • Ústí nad Labem Region
    • Chomutov District
Hyrsl et al. (2009)
Finland
 
  • Central Finland
    • Laukaa
Hietanen (2015)
France
 
  • Grand Est
    • Bas-Rhin
      • Sélestat-Erstein
        • Lalaye
Wittern (1997)
    • Haut-Rhin
      • Colmar-Ribeauvillé
        • Sainte-Marie-aux-Mines
P&T N°23-24 et al. (Haut-Rhin)
            • Sankt Jakob vein
Wittern +1 other reference
This mine worked the same vein as Gabe ... +2 other references
  • Provence-Alpes-Côte d'Azur
    • Hautes-Alpes
      • Gap
        • Orpierre
Le Cahier des Micromonteurs (2) +1 other reference
Germany
 
  • Baden-Württemberg
    • Freiburg Region
      • Lörrach
        • Aitern
Aufschluss 71 (6)
        • Wieden
Mineralogical Society of America - ...
  • Hesse
    • Darmstadt
      • Darmstadt-Dieburg
        • Mühltal
          • Nieder-Beerbach
Belendorff (2021)
  • Lower Saxony
    • Goslar District
      • Braunlage
        • St Andreasberg
          • Beerberg
manfred groß +1 other reference
  • Saxony
    • Erzgebirgskreis
      • Annaberg-Buchholz
        • Frohnau
          • Schreckenberg
Andreas Gerstenberg collection
        • Kleinrückerswalde
P Haas collection
      • Aue-Bad Schlema
        • Alberoda
Vollstädt et al. (1991)
          • Shaft 366
P Haas collection
      • Ehrenfriedersdorf
Wittern (2001)
      • Marienberg
        • Lauta
Wittern (2001)
      • Schneeberg
        • Neustädtel
Lapis 30 (7/8)
          • Wolfgangmaßen
Lapis 30 (7/8)
      • Schwarzenberg
Wittern (2001)
      • Wolkenstein
Lapis (2008)
      • Zschorlau
        • St Katharina Mine
Lapis 30 (7/8)
    • Mittelsachsen
      • Freiberg
Naumann et al. (1898)
        • Zug
90. +1 other reference
      • Großschirma
        • Siebenlehn
Andreas Gerstenberg collection
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
        • Lavrion Mining District
          • Agios Konstantinos (Kamariza)
Meixner et al. (1982)
  • South Aegean
    • Tinos
      • Tinos Island
Tombros (2008)
India
 
  • Rajasthan
    • Bhilwara District
Khan et al. (2021)
Italy
 
  • Sardinia
    • Metropolitan City of Cagliari
      • Sinnai
Stara et al. (1993)
Japan
 
  • Hyogo Prefecture
    • Shisou City
The Mineral Species of Japan (5th ed)
Kazakhstan
 
  • Kostanay Region
    • Rudny
Evseev (1995) +1 other reference
Mexico
 
  • Chihuahua
    • Aquiles Serdán Municipality
      • Santa Eulalia Mining District
        • West Camp
          • Francisco Portillo
Megaw (2023)
  • Mexico
Larocque et al. (2008)
Morocco
 
  • Drâa-Tafilalet Region
    • Zagora Province
      • Agdz Cercle
        • Tansifte Caïdat
          • Tamdrost
Favreau et al. (2006)
Nigeria
 
  • Plateau
    • Jos Plateau
Wolfgang Hampel
Norway
 
  • Buskerud
    • Kongsberg
      • Overberget Mining Field
Gatedal (n.d.)
Papua New Guinea
 
  • Eastern Highlands Province
Noku et al. (2011)
Peru
 
  • Arequipa
    • Caylloma Province
www.sec.gov (n.d.)
Romania
 
  • Maramureș County
    • Baia Mare
Papp et al. (2007)
Russia
 
  • Chukotka Autonomous Okrug
    • Okhotsk-Chukotka belt
Kolova et al. (2021)
  • Krasnoyarsk Krai
    • Maimecha and Kotui Rivers Basin
N. V. Sorokhtina et al. (2010) +1 other reference
Slovakia
 
  • Banská Bystrica Region
    • Žarnovica District
      • Hodruša-Hámre
        • Hodruša-Hámre mines
Berkh et al. (2014)
Slovenia
 
  • Litija
Scopolia - Journal of the Slovenian ...
Spain
 
  • Andalusia
    • Almería
      • Pechina
        • Baños de Alhamilla
Rewitzer et al. (part2)
Sweden
 
  • Västerbotten County
    • Malå
Rincon (2022)
Switzerland
 
  • Valais
    • Brig
      • Naters
Stalder et al. (1998)
    • Östlich Raron
      • Bitsch
Stalder et al. (1998)
    • Westlich Raron
      • Ferden
        • Goppenstein
Rüegg (2005)
Graeser et al. (1978) +2 other references
UK
 
  • England
    • Cumbria
      • Eden
        • Alston Moor
          • Garrigill
Ixer et al. (1987) +1 other reference
USA
 
  • Alaska
    • Yukon-Koyukuk Census Area
      • Iditarod Mining District
- (2008)
  • Colorado
    • Ouray County
      • Ouray Mining District
Emmons et al. (1885)
  • Idaho
    • Custer County
Ream (1995)
 
Mineral and/or Locality  
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