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About ArgentopyriteHide

Bronze-brown, tarnishing to lead-grey.
3½ - 4
Specific Gravity:
Crystal System:
Named for its relationship to pyrite and silver content.
Dimorph of:
This page provides mineralogical data about Argentopyrite.

Classification of ArgentopyriteHide

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

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.:

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

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

Physical Properties of ArgentopyriteHide

Bronze-brown, tarnishing to lead-grey.
3½ - 4 on Mohs scale
VHN100=225 - 242 kg/mm2 - Vickers
4.25 g/cm3 (Measured)    4.27 g/cm3 (Calculated)

Optical Data of ArgentopyriteHide

Strong - deep blue to pale blue-grey
400nmR1=20.5%R2= 29.4%
420nmR1=21.6%R2= 30.2%
440nmR1=22.7%R2= 30.8%
460nmR1=23.8%R2= 31.6%
480nmR1=24.6%R2= 32.2%
500nmR1=25.3%R2= 32.8%
520nmR1=25.8%R2= 33.5%
540nmR1=26.3%R2= 34.1%
560nmR1=26.8%R2= 34.8%
580nmR1=27.4%R2= 35.6%
600nmR1=28.1%R2= 36.3%
620nmR1=28.7%R2= 36.9%
640nmR1=29.4%R2= 37.5%
660nmR1=30.0%R2= 38.0%
680nmR1=30.4%R2= 38.4%
700nmR1=30.9%R2= 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

Chemical Properties of ArgentopyriteHide

Common Impurities:

Crystallography of ArgentopyriteHide

Crystal System:
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)°
a:b:c = 0.584 : 1 : 0.564
Unit Cell V:
494.26 ų
Pseudohexagonal twins, lamellar twins
Space group P1121/n (non-standard setting). Pseudo-orthorhombic. Originally assumed to have space group Pmmn, 6.639, 11.463, 6.452 A.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
5.746 (5)
3.603 (4)
3.320 (10)
3.316 (9)
3.104 (5)
1.927 (5)
1.807 (7)
Měděnec, Czech Republic

Type Occurrence of ArgentopyriteHide

Other Language Names for ArgentopyriteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Proustite31 photos of Argentopyrite associated with Proustite on mindat.org.
Calcite8 photos of Argentopyrite associated with Calcite on mindat.org.
Pyrargyrite5 photos of Argentopyrite associated with Pyrargyrite on mindat.org.
Stephanite4 photos of Argentopyrite associated with Stephanite on mindat.org.
Fluorite4 photos of Argentopyrite associated with Fluorite on mindat.org.
Acanthite3 photos of Argentopyrite associated with Acanthite on mindat.org.
Arsenic3 photos of Argentopyrite associated with Arsenic on mindat.org.
Silver2 photos of Argentopyrite associated with Silver on mindat.org.
Baryte2 photos of Argentopyrite associated with Baryte on mindat.org.
Dyscrasite1 photo of Argentopyrite associated with Dyscrasite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

2.CB.05aColoradoiteHgTeIso. m3m (4/m 3 2/m)
2.CB.05aHawleyiteCdSIso. 4 3m : F4 3m
2.CB.05aMetacinnabarHgSIso. 4 3m : F4 3m
2.CB.05bSakuraiite(Cu,Zn,Fe)3(In,Sn)S4 Iso.
2.CB.05aSphaleriteZnSIso. 4 3m : F4 3m
2.CB.05aTiemanniteHgSeIso. 4 3m : F4 3m
2.CB.05aRudashevskyite(Fe,Zn)SIso. 4 3m : F4 3m
2.CB.10aChalcopyriteCuFeS2Tet. 4 2m : I4 2d
2.CB.10aGalliteCuGaS2Tet. 4 2m : I4 2d
2.CB.10bHaycockiteCu4Fe5S8Orth. 2 2 2
2.CB.10aLenaiteAgFeS2Tet. 4 2m : I4 2d
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.15aČernýiteCu2(Cd,Zn,Fe)SnS4Tet. 4 2m : I4 2m
2.CB.15aFerrokësteriteCu2(Fe,Zn)SnS4Tet. 4 : I4
2.CB.15aHocartiteAg2(Fe2+,Zn)SnS4Tet. 4 2m : I4 2m
2.CB.15aKësterite Cu2ZnSnS4Tet. 4 : I4
2.CB.15aPirquitasiteAg2ZnSnS4Tet. 4 : I4
2.CB.15aStanniteCu2FeSnS4Tet. 4 2m : I4 2m
2.CB.15cUM2006-11-S:CuFeGeZnCu8(Fe,Zn)3Ge2S12 (?)
2.CB.20ChatkaliteCu6FeSn2S8Tet. 4 2m : P4m2
2.CB.20MawsoniteCu6Fe2SnS8Tet. 4 2m : P4m2
2.CB.30ColusiteCu13VAs3S16Iso. 4 3m : P4 3n
2.CB.30GermaniteCu13Fe2Ge2S16Iso. 4 3m : P4 3n
2.CB.30Ovamboite Cu20(Fe,Cu,Zn)6W2Ge6S32Iso.
2.CB.35aKiddcreekiteCu6SnWS8Iso. 4 3m : F4 3m
2.CB.35aRenierite(Cu1+,Zn)11Fe4(Ge4+,As5+)2S16Tet. 4 2m : P4 2c
2.CB.35bCatamarcaiteCu6GeWS8Hex. 6mm : P63mc
2.CB.40LautiteCuAsSOrth. mmm (2/m 2/m 2/m) : Pnma
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.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.65SternbergiteAgFe2S3Orth. mmm (2/m 2/m 2/m)
2.CB.80EmpressiteAgTeOrth. mmm (2/m 2/m 2/m)
2.CB.85MuthmanniteAuAgTe2Mon. 2/m : P2/m

Related Minerals - Dana Grouping (8th Ed.)Hide mmm (2/m 2/m 2/m) m3m (4/m 3 2/m) : Fm3m

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

3.2.1AcanthiteAg2SMon. 2/m : P21/m
3.2.3NaumanniteAg2SeOrth. 2 2 2 : P21 21 21
3.2.4AguilariteAg4SeSMon. 2/m
3.2.5HessiteAg2TeMon. 2/m : P21/b
3.2.6EmpressiteAgTeOrth. mmm (2/m 2/m 2/m)
3.2.7StütziteAg5-xTe3, x = 0.24-0.36Hex. 6 : P6
3.2.8CervelleiteAg4TeSMon. 2/m
3.2.9DervilliteAg2AsS2Mon. 2/m : P2/b
3.2.10StromeyeriteAgCuSOrth. mmm (2/m 2/m 2/m)
3.2.11MckinstryiteAg5-xCu3+xS4Orth. mmm (2/m 2/m 2/m) : Pnma
3.2.14CameroniteCu5-x(Cu,Ag)3+xTe10 (x = 0.43)Mon. 2/m : B2/b
3.2.15Henryite(Cu,Ag)3+xTe2 , with x ~ 0.40 Iso. m3m (4/m 3 2/m) : Fd3c
3.2.16SternbergiteAgFe2S3Orth. mmm (2/m 2/m 2/m)
3.2.18Geffroyite(Cu,Fe,Ag)9(Se,S)8Iso. m3m (4/m 3 2/m) : Fm3m
3.2.19ArgentopentlanditeAg(Fe,Ni)8S8Iso. m3m (4/m 3 2/m) : Fm3m

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

References for ArgentopyriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
von Waltershausen, W.S. (1866) Einige nachträgliche Bemerkungen über den Silberkies. Nachrichten von der Königlichen Gesellschaft der Wissenschaften und der Georg-Augusts-Universität: 9: 66-68.
Dana, J.D., Brush, G.J. (1868) 40A. Argentopyrite. in: A System of Mineralogy, Fifth Edition, John Wiley and Sons, New York.
Schrauf, A. (1871) Mineralogische Beobachtungen III. Sitzungsberichte der Mathematisch-Naturwissenschaftlichen Classe der Kaiserlichen Akademie der Wissenschaften: 114: 123-205.
Palache, C., Berman, H., Frondel, C. (1944) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged, 834pp.: 248.
Murdoch, J., Berry, L.G. (1954) X-ray measurements on argentopyrite. American Mineralogist: 39: 475–485.
Czamanske, G.K. (1969) The stability of argentopyrite and sternbergite. Economic Geology: 64: 459-461.
Czamanske, G.K., Larsen, R.R. (1969) The chemical identity and formula of argentopyrite and sternbergite. American Mineralogist: 54: 1198-1206.
Šrein, V., Řídkošil, T., Kašpar, P., Šourek, J. (1986) Argentopyrite and sternbergite from polymetallic veins of the skarn deposit Měděnec, Krušné hory Mts., Czechoslovakia. Neues Jahrbuch für Mineralogie, Abhandlungen: 154: 207–222.
Yang, H., Pinch, W.W., Downs, R.T. (2009) Crystal structure of argentopyrite, AgFe2S3, and its relationship with cubanite. American Mineralogist: 94: 1727-1730.

Internet Links for ArgentopyriteHide

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
  • Jujuy Province
    • Rinconada Department
Board, W. S., Kennedy, B., & Yeomans, T. (2011). NI 43-101 Technical Report on the Pirquitas Mine.
  • New South Wales
    • Yancowinna Co.
      • Broken Hill district
Handbook of Mineralogy
L.Lawrence, A.R.Ramsden & I.T.Graham 1999. On oxidation of Dyscrasite and associated minerals of the Consols Lode, Broken Hill, New South Wales. Australian Journal of Mineralogy Vol.5, No.2, Dec.1999, pp. 63-68; Vera Munro-Smith (2006) Cobalt Mineralisation in Selected Australian Deposits. PhD thesis, University of Western Sydney.
  • Queensland
    • Mount Isa City Shire
Canadian Mineralogist (1984) 22, 493-498
No reference listed
  • Carinthia
    • Friesach - Hüttenberg area
      • Hüttenberg
G. Niedermayr, I. Praetzel: Mineralien Kärntens, 1995
  • Salzburg
    • Hohe Tauern
      • Rauris valley
        • Seidlwinkl valley
          • Hochtor area
Bergbau in Westkärnten
  • Tyrol
    • North Tyrol
      • Inn valley
        • Innsbruck
          • Axams
Vavtar, F. (1995): Erzmikroskopische Untersuchungen an Silberpentlanditen der Cu-Fe-Erzparagenese von Axams (Stubaikristallin, Tirol, Österreich). Geologisch-Paläontologische Mitteilungen Innsbruck 20, 313-334.
  • Potosí
    • Chayanta Province
[MinRec 32:469]
  • British Columbia
    • Greenwood Mining Division
      • Beaverdell
Robert O. Meyer collection, from Ty Balacko.
    • Slocan Mining Division
      • Sandon
Mauthner, M.H.F. et al. (1996) Minerals of the Silvana Mine Sandon British Columbia. Mineralogical Record, 27(6):433-438.
  • Northwest Territories
    • Mackenzie District
      • Mackenzie Mts
Hewton, M. L. (2012). Investigation of the Mountain River beryl (emerald variety) occurrence, Mackenzie Mountains, Northwest Territories (MSc dissertation, Science: Department of Earth Sciences).
  • Ontario
    • Sudbury District
      • Garson Township
Ames, D.E., Kjarsgaard, I.M., and Douma, S.L., 2003, Sudbury Ni-Cu-PGE Ore Mineralogy Compilation: Sudbury Targeted Geoscience Initiative (TGI): Geological Survey of Canada, Open File 1787
  • Tarapacá
    • El Tamarugal Province
      • Collahuasi district
http://www.portergeo.com.au/database/mineinfo.asp?mineid=mn609#browse (accessed 01/19/2018)
Czech Republic
  • Central Bohemian Region
Dr Gunter Grundmann collection, # 312.
  • Karlovy Vary Region
    • Karlovy Vary District
Am Min 39 (1954), 475; Lapis 3 (1988), 7
C.Auer (2018)
  • Ústí nad Labem Region
    • Krušné Hory Mts (Erzgebirge)
      • Klášterec nad Ohří
No reference listed
- Hyrsl, J. & Korbel, P. (2009): Tschechien & Slowakei, Mineralien und Fundstellen. Page 60-75.
  • Central Finland
    • Jyväskylä
Hietanen, Sini (2015) Keski-Suomen granitoidikomplekssin malmiviitteet Hiekkapohjan alueella. Pro gradu-tutkielm, Kaivannaistiedekunta, Oulun Yliopisto 2015.
  • Grand Est
    • Bas-Rhin
      • Villé Valley
Wittern, Journée (1997): "Mineralien finden in den Vogesen", von Loga (Cologne), pp. 36-37.
    • Haut-Rhin
      • Ste Marie-aux-Mines (Markirch)
P&T N°23-24, H. BARI 1982, Minéralogie des filons du Neuenberg à Sainte Marie aux Mines (Haut-Rhin).
          • Sankt Jakob vein
Wittern, Journée: "Mineralien finden in den Vogesen", von Loga (Cologne), 1997
  • Provence-Alpes-Côte d'Azur
    • Hautes-Alpes
      • Orpierre
Moëlo, Y., Picot, Pierrot, R. (1975): L'indice à sulfoantimoniures de plomb des Cougnasses (commune d'Orpierre, Hautes Alpes). Partie I : minéralogie du minerai. Bulletin de la Société Française de Minéralogie et de Cristallographie 98, 299-307.; Le Cahier des Micromonteurs,(2), 3-13
  • Baden-Württemberg
    • Black Forest
      • Wieden
Handbook of Mineralogy
Aufschluss 71(6), 195-200
  • Hesse
    • Odenwald
      • Mühltal
        • Nieder-Beerbach
  • Lower Saxony
    • Goslar
      • Braunlage
        • St Andreasberg
No reference listed
No reference listed
  • Saxony
    • Erzgebirge District
      • Annaberg-Buchholz
        • Frohnau
          • Schreckenberg
Andreas Gerstenberg collection
        • Kleinrückerswalde
P Haas collection
      • Ehrenfriedersdorf
      • Johanngeorgenstadt mining district
Wittern: "Mineralfundorte in Deutschland", 2001
      • Marienberg District
        • Lauta
Wittern: "Mineralfundorte in Deutschland", 2001
        • Wolkenstein
Lapis, Jg 33 (2008), No.9, pag 26-27.
      • Schlema-Hartenstein District
        • Alberoda
Vollstädt,H. & Weiß,St. (1991): Mineralfundstellen Sächsisches Erzgebirge, München, S.26ff.
          • Shaft 366
P Haas collection
      • Schneeberg
        • Neustädtel
Lapis 30(7/8):41-70 (2005)
Lapis 30(7/8):41-70 (2005)
Lapis 30(7/8):41-70 (2005)
      • Schwarzenberg mining district
        • Pöhla
Wittern: "Mineralfundorte in Deutschland", 2001
    • Mittelsachsen
      • Freiberg
Naumann, Zirkel: "Elemente der Mineralogie", 10th Ed., Leipzig (1898)
        • Siebenlehn
Andreas Gerstenberg collection
  • Attica
    • East Attica
      • Lavreotiki
        • Lavrion District Mines
          • Agios Konstantinos [St Constantine] (Kamariza)
Meixner, H. & Paar, W. (1982): New observations on ore formation and weathering of the Kamariza deposit, Laurion, SE Attica (Greece). Special Publication of the Society for Geology Applied to Mineral Deposits 2 (Ore Genesis: State of the Art), 760-767.
  • South Aegean
    • Tinos
      • Tinos Island
Tombros, S.F. (2008): Later stages of evolution of an epithermal system: Au-Ag mineralization at Apigania Bay, Tinos, Island, Cyclades, Hellas, Greece. Min.Pet. (in press)
  • Sardinia
    • Metropolitan City of Cagliari
      • Sinnai
Stara, P., Rizzo, R., Brizzi, G. (1993) Sarrabus. Miniere e Minerali. Associazione Mineralogica Sarda, Gruppo Mineralogico Lombardo, Associazione Piemontese Mineralogia Paleontologia e Mostra Torinese Minerali, Centro Mineralogico Varesino, Amici Mineralogisti Fiorentini, Gruppo Mineralogico Paleontologico Piacentino, et al., Stige Milano Srl, Milano, 208 pp.
  • Hyogo
    • Shisou City
The Mineral Species of Japan (5th ed) Matsubara
  • Kostanay Region
    • Rudny
[World of Stones 12:13]; Evseev, A. A. (1995) Kazaknstan and Middle Asia. A brief Mineralogical Guide. World of Stone 8:24-30
  • Chihuahua
    • Aquiles Serdán Municipality
      • Santa Eulalia District
        • West Camp
          • Francisco Portillo
Peter Megaw Collection
  • Drâa-Tafilalet
    • Ouarzazate Province
      • Tazenakht
        • Bou Azzer District (Bou Azer District)
          • Tamdrost
Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
  • Plateau
    • Jos Plateau
Wolfgang Hampel, site visit /studies November 2007
  • Buskerud
    • Kongsberg
      • Kongsberg silver mining district
        • Overberget Mining Field
Kjell Gatedal collection and photo
Papua New Guinea
  • Eastern Highlands Province
Noku, S.K., Akasaka, M. & Matsueda, H. (2011): The Crater Mountain Deposit, Papua New Guinea: Porphyry-related Au-Te System. Resource Geology, 61, 63-75.
  • Maramureș
    • Baia Mare (Nagybánya)
      • Chiuzbaia (Kisbánya)
Papp, Gábor, Alan J. Criddle, Chris J. Stanley, László Kriston and Géza Nagy (2007): Parajamesonite revisited: background of the discreditation of an enigmatic mineral species. Swiss Journal of Geosciences, 100, 495-502.
  • Krasnoyarsk Krai
    • Maimecha and Kotui Rivers Basin
N. V. Sorokhtina, A.M. Asavin, V.G .Senin (2010) K-bearing sulfides in carbonatites of the Guli massif of the Polar Siberia. Abstracts of XXVII International conference School «Geochemistry of Alkaline rocks». – Moscow-Koktebel’. pp. 240 pp.
  • Central Sava Region
    • Litija
Scopolia - Journal of the Slovenian Museum of natural History - Mineralna bogastva Slovenije, p. 52 - 65, Ljubljana, 2006
  • Valais
    • Brig
      • Bitsch
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 419.
      • Naters
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 371.
    • Lötschen valley
      • Goppenstein
Mineralienlexikon der Schweiz, Wepf Verlag, 1998, ISBN 3-85977-200-7
  • England
    • Cumbria
      • Eden
        • Alston Moor
          • Garrigill
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990; Ixer, R.A. and Stanley, C.J. (1987): Proceedings of the Yorkshire Geological Society 46, 133-139.
  • Alaska
    • Yukon-Koyukuk Census Area
      • Iditarod Mining District
U.S. Geological Survey, 2008, Alaska Resource Data File (ARDF): U.S. Geological Survey Open-File Report 2008-1225.
  • Colorado
    • Ouray Co.
      • San Juan Mts
        • Ouray Mining District
Emmons and Becker (1885) Statistics and Technology of the precious Metals. Census reports Tenth census. June 1, 1880, Volume 13 By United States. Census office. 10th census, 1880, United States. Census Office
  • Idaho
    • Custer Co.
R&M 70:4 pp 242-263
Mineral and/or Locality  
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