Argentopentlandite
A valid IMA mineral species
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About Argentopentlandite
Formula:
Ag(Fe,Ni)8S8
Colour:
Bronze brown
Lustre:
Metallic
Hardness:
3½
Specific Gravity:
4.66 (Calculated)
Crystal System:
Isometric
Member of:
Name:
For its silver content and relation to pentlandite.
Unique Identifiers
Mindat ID:
291
Long-form identifier:
mindat:1:1:291:6
GUID
(UUID V4):
(UUID V4):
8f4aa312-71f4-4cc8-b93c-2cb5f5257e95
IMA Classification of Argentopentlandite
Approved
Classification of Argentopentlandite
2.BB.15
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
B : With Ni
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
B : With Ni
2.7.1.2
2 : SULFIDES
7 : AmBnXp, with (m+n):p = 9:8
2 : SULFIDES
7 : AmBnXp, with (m+n):p = 9:8
3.2.19
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
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 Symbols
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.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Symbol | Source | Reference |
---|---|---|
Apn | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Apn | The Canadian Mineralogist (2019) | The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download |
Pronunciation of Argentopentlandite
Pronunciation:
Play | Recorded by | Country |
---|---|---|
Jolyon Ralph | United Kingdom |
Physical Properties of Argentopentlandite
Metallic
Transparency:
Opaque
Colour:
Bronze brown
Hardness:
3½ on Mohs scale
Hardness:
VHN50=132 - 154 kg/mm2 - Vickers
Cleavage:
Very Good
Well developed on {111}
Well developed on {111}
Density:
4.66 g/cm3 (Calculated)
Optical Data of Argentopentlandite
Type:
Isotropic
Reflectivity:
Wavelength | R |
---|---|
400nm | 20.4% |
420nm | 21.0% |
440nm | 21.9% |
460nm | 22.9% |
480nm | 24.2% |
500nm | 25.6% |
520nm | 27.2% |
540nm | 28.8% |
560nm | 30.4% |
580nm | 31.9% |
600nm | 33.3% |
620nm | 34.6% |
640nm | 35.8% |
660nm | 36.8% |
680nm | 37.8% |
700nm | 38.6% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 38.6%.
Colour in reflected light:
Cinnamon-brown
Chemistry of Argentopentlandite
Mindat Formula:
Ag(Fe,Ni)8S8
Elements listed:
Common Impurities:
Cu
Crystallography of Argentopentlandite
Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Fm3m
Setting:
Fm3m
Cell Parameters:
a = 10.521(3) Å
Unit Cell V:
1,164.58 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Octahedral crystals, massive.
Crystal Structure
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Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
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2x2x2 | 3x3x3 | 4x4x4
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Rotation
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0005093 | Argentopentlandite | Hall S R, Stewart J M (1973) The crystal structure of argentian pentlandite (Fe,Ni)8AgS8, compared with the refined structure of pentlandite (Fe,Ni)9S8 The Canadian Mineralogist 12 169-177 | 1973 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
6.06 Å | (2) |
5.25 Å | (2) |
3.71 Å | (2) |
3.170 Å | (10) |
2.018 Å | (4) |
1.858 Å | (10) |
1.072 Å | (3) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
High-𝑇 alteration and/or metamorphism | |
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12]) | |
Stage 4b: Highly evolved igneous rocks | >3.0 |
36 : Carbonatites, kimberlites, and related igneous rocks |
Geological Setting:
Pyrite and cubanite hydrothermal veins, skarn deposits.
Type Occurrence of Argentopentlandite
Synonyms of Argentopentlandite
Other Language Names for Argentopentlandite
Finnish:Hopeapentlandiitti
German:Argentopentlandit
Simplified Chinese:银镍黄铁矿
Spanish:Argentopentlandita
Relationship of Argentopentlandite to other Species
Member of:
Other Members of this group:
Cobaltpentlandite | Co9S8 | Iso. m3m (4/m 3 2/m) : Fm3m |
Geffroyite | (Cu,Fe,Ag)9(Se,S)8 | Iso. m3m (4/m 3 2/m) : Fm3m |
Oberthürite | Rh3Ni32S32 | Iso. |
Pentlandite | (NixFey)Σ9S8 | Iso. m3m (4/m 3 2/m) : Fm3m |
Shadlunite | (Pb,Cd)(Fe,Cu)8S8 | Iso. m3m (4/m 3 2/m) : Fm3m |
Sugakiite | Cu(Fe,Ni)8S8 | Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm |
Common Associates
Associated Minerals Based on Photo Data:
11 photos of Argentopentlandite associated with Chalcopyrite | CuFeS2 |
7 photos of Argentopentlandite associated with Pentlandite | (NixFey)Σ9S8 |
5 photos of Argentopentlandite associated with Cubanite | CuFe2S3 |
5 photos of Argentopentlandite associated with Magnetite | Fe2+Fe3+2O4 |
5 photos of Argentopentlandite associated with Altaite | PbTe |
4 photos of Argentopentlandite associated with Galena | PbS |
3 photos of Argentopentlandite associated with Maslovite | PtBiTe |
3 photos of Argentopentlandite associated with Froodite | α-PdBi2 |
2 photos of Argentopentlandite associated with Silver | Ag |
2 photos of Argentopentlandite associated with Paolovite | Pd2Sn |
Related Minerals - Strunz-mindat Grouping
2.BB. | Horomanite | Fe6Ni3S8 |
2.BB. | Samaniite | Cu2Fe5Ni2S8 |
2.BB. | UM2007-27-S:CuFeIrNiRh | (Ni,Fe,Cu,Rh,Ir)11S9 |
2.BB. | Arsenotučekite | Ni18Sb3AsS16 |
2.BB. | Hrabákite | Ni9PbSbS8 |
2.BB.05 | Heazlewoodite | Ni3S2 |
2.BB.05 | Oregonite | Ni2FeAs2 |
2.BB.05 | Vozhminite | (Ni,Co)4(As,Sb)S2 |
2.BB.05 | UM2007-30-S:Fe | Fe3S2 |
2.BB.10 | Arsenohauchecornite | Ni18Bi3AsS16 |
2.BB.10 | Bismutohauchecornite | Ni9Bi2S8 |
2.BB.10 | Hauchecornite | Ni9BiSbS8 |
2.BB.10 | Tellurohauchecornite | Ni9Bi(Te,Bi)S8 |
2.BB.10 | Tučekite | Ni9Sb2S8 |
2.BB.15 | Cobaltpentlandite | Co9S8 |
2.BB.15 | Geffroyite | (Cu,Fe,Ag)9(Se,S)8 |
2.BB.15 | Godlevskite | (Ni,Fe)9S8 |
2.BB.15 | Kharaelakhite | (Cu,Pt,Pb,Fe,Ni)9S8 |
2.BB.15 | Manganoshadlunite | (Mn,Pb,Cd)(Cu,Fe)8S8 |
2.BB.15 | Pentlandite | (NixFey)Σ9S8 |
2.BB.15 | Shadlunite | (Pb,Cd)(Fe,Cu)8S8 |
2.BB.15 | Sugakiite | Cu(Fe,Ni)8S8 |
2.BB.15 | UM2002-26-S:FeNi | (Ni,Fe)9S8 |
2.BB.15 | Ferhodsite | (Fe,Rh,Ni,Ir,Cu,Pt)9S8 |
2.BB.15 | Oberthürite | Rh3Ni32S32 |
Other Information
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 Argentopentlandite
mindat.org URL:
https://www.mindat.org/min-291.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Argentopentlandite
Reference List:
Scott, S. D., Gasparrini, E. (1973) Argentian pentlandite, (Fe,Ni)8AgS8, from Bird River, Manitoba. The Canadian Mineralogist, 12 (3) 165-168
Hall, S. R., Stewart, J. M. (1973) The crystal structure of argentian pentlandite (Fe,Ni)8AgS8, compared with the refined structure of pentlandite (Fe,Ni)9S8. The Canadian Mineralogist, 12 (3) 169-177
Localities for Argentopentlandite
Locality List
- 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.
All localities listed without proper references should be considered as questionable.
Argentina | |
| Paar et al. (2016) |
| Bjerg and Brodtkorb +1 other reference |
Australia | |
| Kalleske (2010) |
| Marshall (2001) |
| Mineralogical Society of America - ... |
Austria | |
| - (2019) |
| Vavtar (1995) |
Botswana | |
| Maier et al. (2008) |
Bulgaria | |
| Kerestedjian (1997) |
Canada | |
| Manor et al. (2014) |
| Canadian Mineralogist +1 other reference |
| Bernhardt Augsten et al. (1986) +1 other reference |
| Duff (2016) |
| Ames et al. (TGI) |
Ames et al. (TGI) | |
| Ames et al. (TGI) |
| Ames et al. (TGI) |
| Ames et al. (TGI) |
| Ames et al. (TGI) |
Warren (2013) | |
Ames et al. (TGI) | |
Ames et al. (TGI) | |
Ames et al. (TGI) | |
Ames et al. (TGI) | |
Ames et al. (TGI) | |
Ames et al. (TGI) | |
| Ames et al. (TGI) |
| Ames et al. (2003) |
Ames et al. (TGI) | |
Ames et al. (TGI) | |
Ames et al. (TGI) | |
Ames et al. (TGI) | |
| Ames et al. (TGI) |
157-158. +1 other reference | |
| Sabina (2003) |
| Barkov et al. (2002) |
China | |
| Mineralogical Society of America - ... |
| Zhang Zhengen et al. (1987) |
| Yongrui Zhao and Yunqing Zhen (2006) |
Yongrui Zhao and Yunqing Zhen (2006) | |
| Benhai Li et al. (1991) +1 other reference |
| Chuanjie Pu et al. (2007) |
Czech Republic | |
| Lapis 2002 (7/8) |
| Sejkora et al. (2020) |
| Němec |
Ethiopia | |
| Cook et al. (2000) +1 other reference |
Finland | |
| Eilu (2003) |
Geological Survey of Finland 2008 ... +1 other reference | |
| Alapieti et al. (1986) |
| Kojonen et al. (1991) |
| Geological Survey of Finland 2011. ... |
| Gervilla et al 1997. Mineralogy of ... +1 other reference |
| Pere Tuomas (2009) |
| Mineralogical Society of America - ... |
Greece | |
| Mineralogical Society of America - ... |
Italy | |
| Stara et al. (1999) |
| Benvenuti (1991) |
Japan | |
| Mariko et al (1973) |
Norway | |
| Sirkka (1988) +1 other reference |
Bancroft et al. (2001) | |
Poland | |
| a first occurrence in Poland. Mineralogia 45 (1-2) +2 other references |
| Mederski et al. (2020) |
a first occurrence in Poland. Mineralogia: 45 (1-2) +1 other reference | |
Russia | |
| Novakov et al. (2021) |
| - (2014) +1 other reference |
Pekov (1998) | |
| Rudashevskii et al. (1977) +2 other references |
| Goryachev et al. (2008) |
| Groshev +6 other references |
Ivanov et al. (2020, July) | |
| Karpov S.M. et al. (2012) +2 other references |
Lobanov et al. (2021, August) | |
| Mikhailova et al. (2015) +2 other references |
| Grokhovskaya et al. (2003) |
| Kalinin (2021) |
| Svetlitskaya +2 other references |
| Grishaenko et al. (2007) |
Barkov et al. (1996) +1 other reference | |
| Rudashevskii et al. (1977) |
| Murzin et al. (2022) |
Serbia | |
| Pačevski et al. (2018) |
South Africa | |
| Manyeruke (2007) |
| Nikolay Rudashevsky et al (2001) |
Spain | |
| R. Piña et al. (2008) |
| Mineralogical Society of America - ... +2 other references |
Sweden | |
| Bjärnborg (2009) |
Switzerland | |
| Stalder et al. (1998) |
UK | |
| Mineralogical Magazine 1996 60 : 317-324 |
Tindle (2008) | |
| Anthony et al. (1990) |
Uruguay | |
| Prichard et al. (2004) |
USA | |
| Heinrich et al. (2004) |
Zimbabwe | |
| Oberthür et al. (2003) |
Quick NavTopAbout ArgentopentlanditeUnique IdentifiersIMA Classification Classification Mineral SymbolsPronunciation Physical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesRelationshipsCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Oktyabrsky Mine, Talnakh Cu-Ni Deposit, Noril'sk, Putoran Plateau, Taimyr Peninsula, Taymyrskiy Autonomous Okrug, Krasnoyarsk Krai, Russia