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Cobaltpentlandite

A valid IMA mineral species
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About CobaltpentlanditeHide

Formula:
Co9S8
Co is often replaced by minor Ni and Fe.
Colour:
Yellow
Lustre:
Metallic
Hardness:
4 - 4½
Specific Gravity:
5.22 (Calculated)
Crystal System:
Isometric
Name:
Originally named cobalt pentlandite (two words) in 1959 by O. Kuova, Maija Huhma, and Yrjö Vuorelainen, for its cobalt content and relation to pentlandite. The name was later changed to a single word by the International Mineralogical Association (Burke 2008).

Unique IdentifiersHide

Mindat ID:
1097
Long-form identifier:
mindat:1:1:1097:5
GUID
(UUID V4):
a042991f-57e7-43cc-a48b-097f04f451b8

IMA Classification of CobaltpentlanditeHide

Approved
IMA status notes:
Renamed by the IMA
First published:
1959

Classification of CobaltpentlanditeHide

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
2.7.1.3

2 : SULFIDES
7 : AmBnXp, with (m+n):p = 9:8
3.10.1

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

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

Metallic
Transparency:
Opaque
Colour:
Yellow
Hardness:
4 - 4½ on Mohs scale
Hardness:
VHN100=278 - 332 kg/mm2 - Vickers
Cleavage:
Distinct/Good
on {100}
Density:
5.22 g/cm3 (Calculated)

Optical Data of CobaltpentlanditeHide

Type:
Isotropic
Reflectivity:
WavelengthR
400nm36.9%
420nm41.9%
440nm45.9%
460nm49.2%
480nm51.7%
500nm53.8%
520nm55.6%
540nm57.0%
560nm58.2%
580nm59.2%
600nm60.0%
620nm60.5%
640nm61.0%
660nm61.2%
680nm61.4%
700nm61.5%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 61.5%.
Colour in reflected light:
Slightly lighter bronze-yellow as compared to pentlandite

Chemistry of CobaltpentlanditeHide

Mindat Formula:
Co9S8

Co is often replaced by minor Ni and Fe.
Common Impurities:
Fe,Ni

Crystallography of CobaltpentlanditeHide

Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Fm3m
Setting:
Fm3m
Cell Parameters:
a = 9.973 Å
Unit Cell V:
991.92 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Exolved lammellae, crystals under 4mm.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0005106CobaltpentlanditeRajamani V, Prewitt C T (1975) Refinement of the structure of Co9S8 The Canadian Mineralogist 13 75-7819750293
0018076CobaltpentlanditeLindqvist M, Lindqvist D, Westgren A (1936) The crystal structure of Co9 S8 and of pentlandite (Ni Fe)9 S8 _cod_database_code 1011206 Svensk Kemisk Tidskrift 48 156-16019360293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.008 Å(100)
1.763 Å(100)
1.918 Å(80)
5.75 Å(60)
2.878 Å(60)
1.018 Å(60)
2.288 Å(50)

Geological EnvironmentHide

Paragenetic Mode(s):
Geological Setting:
Hydrothermal veins.

Type Occurrence of CobaltpentlanditeHide

Reference:
Kuova, O., Huhma, M., and Vuorelainen, Y. (1959) A natural cobalt analog of pentlandite. American Mineralogist: 44: 897-900.

Other Language Names for CobaltpentlanditeHide

Relationship of Cobaltpentlandite to other SpeciesHide

Other Members of this group:
ArgentopentlanditeAg(Fe,Ni)8S8Iso. m3m (4/m 3 2/m) : Fm3m
Geffroyite(Cu,Fe,Ag)9(Se,S)8Iso. m3m (4/m 3 2/m) : Fm3m
OberthüriteRh3Ni32S32Iso.
Pentlandite(NixFey)Σ9S8Iso. m3m (4/m 3 2/m) : Fm3m
Shadlunite(Pb,Cd)(Fe,Cu)8S8Iso. m3m (4/m 3 2/m) : Fm3m
SugakiiteCu(Fe,Ni)8S8Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
Forms a series with:

Common AssociatesHide

Associated Minerals Based on Photo Data:
2 photos of Cobaltpentlandite associated with ChalcopyriteCuFeS2
2 photos of Cobaltpentlandite associated with PyrrhotiteFe1-xS
1 photo of Cobaltpentlandite associated with AwaruiteNi3Fe
1 photo of Cobaltpentlandite associated with HeazlewooditeNi3S2
1 photo of Cobaltpentlandite associated with MilleriteNiS
1 photo of Cobaltpentlandite associated with SphaleriteZnS
1 photo of Cobaltpentlandite associated with CubaniteCuFe2S3
1 photo of Cobaltpentlandite associated with BorniteCu5FeS4
1 photo of Cobaltpentlandite associated with MagnetiteFe2+Fe3+2O4

Related Minerals - Strunz-mindat GroupingHide

2.BB.HoromaniteFe6Ni3S8Tet. 4/mmm (4/m 2/m 2/m) : P4/mmm
2.BB.SamaniiteCu2Fe5Ni2S8Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
2.BB.UM2007-27-S:CuFeIrNiRh(Ni,Fe,Cu,Rh,Ir)11S9
2.BB.ArsenotučekiteNi18Sb3AsS16Tet. 4mm : I4mm
2.BB.HrabákiteNi9PbSbS8Tet. 4/mmm (4/m 2/m 2/m) : P4/mmm
2.BB.05HeazlewooditeNi3S2Trig. 3 2 : R3 2
2.BB.05OregoniteNi2FeAs2Hex.
2.BB.05Vozhminite(Ni,Co)4(As,Sb)S2Hex.
2.BB.05UM2007-30-S:FeFe3S2
2.BB.10ArsenohauchecorniteNi18Bi3AsS16Tet.
2.BB.10BismutohauchecorniteNi9Bi2S8Tet. 4/mmm (4/m 2/m 2/m) : P4/mmm
2.BB.10HauchecorniteNi9BiSbS8Tet. 4/mmm (4/m 2/m 2/m) : P4/mmm
2.BB.10TellurohauchecorniteNi9Bi(Te,Bi)S8Tet. 4/mmm (4/m 2/m 2/m) : P4/mmm
2.BB.10TučekiteNi9Sb2S8Tet. 4/mmm (4/m 2/m 2/m) : P4/mmm
2.BB.15ArgentopentlanditeAg(Fe,Ni)8S8Iso. m3m (4/m 3 2/m) : Fm3m
2.BB.15Geffroyite(Cu,Fe,Ag)9(Se,S)8Iso. m3m (4/m 3 2/m) : Fm3m
2.BB.15Godlevskite(Ni,Fe)9S8Orth. 2 2 2 : C2 2 2
2.BB.15Kharaelakhite(Cu,Pt,Pb,Fe,Ni)9S8Orth. mmm (2/m 2/m 2/m) : Pmmm
2.BB.15Manganoshadlunite(Mn,Pb,Cd)(Cu,Fe)8S8
2.BB.15Pentlandite(NixFey)Σ9S8Iso. m3m (4/m 3 2/m) : Fm3m
2.BB.15Shadlunite(Pb,Cd)(Fe,Cu)8S8Iso. m3m (4/m 3 2/m) : Fm3m
2.BB.15SugakiiteCu(Fe,Ni)8S8Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
2.BB.15UM2002-26-S:FeNi(Ni,Fe)9S8Hex.
2.BB.15Ferhodsite(Fe,Rh,Ni,Ir,Cu,Pt)9S8Tet.
2.BB.15OberthüriteRh3Ni32S32Iso.

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 CobaltpentlanditeHide

References for CobaltpentlanditeHide

Reference List:

Localities for CobaltpentlanditeHide

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
 
  • Mendoza Province
    • Tupungato Department
      • Santa Clara District
Brodtkorb (2002)
Atlantic Ocean
 
  • Mid-Atlantic Ridge complex
    • Ashadze hydrothermal area
Firstova et al. (2016)
Canadian Mineralogist: 34: 23-28.
    • Rainbow Massif
Bortnikov et al. (2001) +1 other reference
Australia
 
  • New South Wales
    • Kennedy Co.
Webb (2014)
Johan et al. (1989)
5th International Platinum Symposium ...
  • Tasmania
    • Waratah-Wynyard municipality
      • Heazlewood district
Frank Keutsch collection
  • Western Australia
    • Wiluna Shire
      • Lake Way Station
Grguric et al. (2013)
Austria
 
  • Carinthia
    • Sankt Veit an der Glan District
      • Frauenstein
        • Kraig
Reimann (1980)
  • Lower Austria
    • Sankt Pölten-Land District
      • Karlstetten
        • Rosenthal
Kolitsch et al. (2023)
  • Styria
    • Bruck-Mürzzuschlag District
      • Sankt Barbara im Mürztal
        • Veitsch
          • Kleinveitsch
Girtler et al. (2015) +1 other reference
    • Murtal District
      • Sankt Margarethen bei Knittelfeld
        • Sankt Lorenzen bei Knittelfeld
Kollegger et al. (2008)
Brazil
 
  • Pará
    • Marabá
Monteiro et al. (2008) +1 other reference
    • Parauapebas
Monteiro et al. (2008)
Canada
 
  • British Columbia
    • Omineca Mining Division
      • Decar
Seiler et al. (2023)
  • Nunavut
    • Kivalliq Region
      • Nueltin Lake project
Jiricka (2013)
  • Ontario
    • Thunder Bay District
Currie (1980)
    • Timiskaming District
      • Cobalt-Gowganda region
[www.ontariominerals.com] +2 other references
          • Casey Township
Can Mineral December 1971 v. 11 no. 1 ... +4 other references
  • Québec
    • Abitibi-Témiscamingue
      • Rouyn-Noranda TE
Mineralogical Society of America - ...
    • Montérégie
      • Vaudreuil-Soulanges RCM
        • Vaudreuil-Dorion
Bowen +1 other reference
China
 
  • Guangxi
    • Liuzhou
      • Rongshui Co.
        • Yuanbao Mts (Yuanbaoshan)
Jianchun Lu and Youde Huang (1988)
  • Hainan
    • Changjiang Co.
Jinjie Yu et al. (2013)
  • Jilin
    • Tonghua
      • Ji'an Co.
wrgis.wr.usgs.gov (2004)
  • Qinghai
    • Golog Tibetan Autonomous Prefecture
      • Maqên Co.
        • Dur'ngoi Ophiolite
Jingsui Yang and Wenji Bai (1987) +1 other reference
    • Haixi Mongol and Tibetan Autonomous Prefecture
      • Golmud City (Ge'ermu Co.)
Zhang Dequan et al. (2002) +1 other reference
  • Shandong
    • Weihai
      • Rongcheng Co.
- (n.d.)
  • Shanxi
    • Yuncheng
      • Jiang Co.
        • Zhongtiaoshan ore field
Yunqing Zhen et al. (1992)
      • Yuanqu Co.
        • Zhongtiaoshan ore field
Yang Weihua (1996)
Yongrui Zhao and Yunqing Zhen (2006)
  • Sichuan
    • Panzhihua
      • Dong District
        • Panzhihua Fe-V-Ti-(PGE) deposit
Gao et al. (2017) +1 other reference
Czech Republic
 
  • Central Bohemian Region
    • Příbram District
      • Příbram
        • Brod
          • Uranium Mine No. 6 (Shaft No. 6)
Sejkora et al. (2024)
Finland
 
  • Lapland
    • Kittilä
www.gsf.fi (2002)
    • Posio
Vartiainen (1984)
    • Rovaniemi
Eilu (2003)
    • Sodankylä
      • Viiankiaapa mire area
Pelayo Barrón Francisco (2020)
  • North Karelia
    • Outokumpu
Geological Survey of Finland +2 other references
Kuova et al. (1959)
Geological Survey of Finland 2011. ...
    • Polvijärvi
Hänninen Esko 1986. Polvijärven ...
  • North Ostrobothnia
    • Ii
      • Kuivaniemi
Geological Survey of Finland 2007 ...
    • Kuusamo
Geological Survey of Finland 2008. ... +1 other reference
Eilu (2003)
Geological Survey of Finland 2007 ... +2 other references
Geological Survey of Finland 2008. ...
Geological Survey of Finland 2008. ...
Geological Survey of Finland 2008. ...
Geological Survey of Finland 2008. ...
Geological Survey of Finland 2008. ... +1 other reference
  • South Savo
    • Savonlinna
Mineralogical Society of America - ... +1 other reference
France
 
  • Provence-Alpes-Côte d'Azur
    • Hautes-Alpes
      • Briançon
        • Saint-Véran
A. Sinojmeri et al. (Hautes Alpes)
Greece
 
  • Western Macedonia
    • Grevena
      • Grevena
Mineralogical Society of America - ...
Greenland
 
  • Sermersooq
Mineralogical Magazine et al. (4)
India
 
  • Rajasthan
    • Jaipur district
      • Sikar District
        • Khetri
Baidya et al. (2018)
    • Jhunjhunu District
Baidya et al. (2018)
Iran
 
  • Isfahan Province
    • Nain County
      • Anarak District
Anthony et al. (1990)
Ireland
 
  • Leinster
    • Meath County
      • Navan (An Uaimh)
        • Navan Mine (Tara Mine)
Yesares et al. (2021)
Italy
 
  • Piedmont
    • Metropolitan City of Turin
      • Balangero
Piccoli et al. (2007)
Japan
 
  • Aichi Prefecture
    • Shinshiro city
Suzuki et al. (1976) +1 other reference
  • Hokkaidō Prefecture
    • Kamikawa Subprefecture
      • Shimokawa
Vol.XXI +3 other references
  • Iwate Prefecture
    • Kamaishi City
Matsubara et al. (1979)
  • Saitama Prefecture
    • Hanno City
Yamada et al (2000)
Kazakhstan
 
  • West Kazakhstan Region
    • Bayterek District
Sharygin (2019)
Lithuania
 
  • Alytus County
    • Varena Municipality
Prušinskienė et al. (2017)
Norway
 
  • Innlandet
    • Lom
      • Glittertind massif
Nilsson et al. (1998)
  • Nordland
    • Hemnes
      • Kongsfjell
Lindahl (1973)
  • Østfold
    • Indre Østfold
      • Askim
        • Kykkelsrud
Geological Survey of Norway (NGU)
  • Troms og Finnmark
    • Bardu
Tufar (1967)
    • Kåfjord
Lindahl (1973)
    • Kvæfjord
Geological Survey of Norway. The Ore ...
Poland
 
  • Podlaskie Voivodeship
    • Suwałki County
Nejbert K. 2008: Mineralogy of ...
Kucha H. et al. (NE Poland)
Portugal
 
  • Portalegre
    • Alter do Chão
Dias et al. (2006)
Romania
 
  • Bihor County
    • Nucet
Cook et al. (2001) +1 other reference
  • Caraş-Severin County
    • Ciclova Română
Cook et al. (2001) +1 other reference
Cook et al. (2001) +1 other reference
    • Ocna de Fier
Cook et al. (2001) +1 other reference
Cook et al. (2001) +1 other reference
Cook et al. (2001) +1 other reference
Russia
 
  • Buryatia
    • Severo-Baykalsky District
      • Dovyren Highlands
Kislov +1 other reference
  • Chelyabinsk Oblast
    • Verkhny Ufaley
      • Ufaley District (Ufalei District)
Pavel M. Kartashov analytical data (2013)
  • Kamchatka Krai
    • Koryak Okrug
      • Olyutorsky district
        • Korf
Sidorov et al. (2018)
    • Ust-Bolsheretsky District
      • Dukuk complex
Novakov et al. (2021)
  • Krasnoyarsk Krai
Alexander V. Dedeev et al (2002)
    • Maimecha and Kotui Rivers Basin
Sorokhtina et al. (2019)
  • Murmansk Oblast
...
    • Kovdorsky District
Mikhailova et al. (2015) +2 other references
Mikhailova et al. (2015) +1 other reference
    • Northern Karelia
Zaitsev et al. (2004)
A. N. Korobeinikov et al. (1998)
  • Republic of Karelia
    • Burakovskii Layered Complex
Grishaenko et al. (2007)
    • Loukhsky District
Safonov et al. (2003)
  • Sverdlovsk Oblast
    • Karpinsk Urban Okrug
Sharygin et al. (2014)
Slovakia
 
  • Banská Bystrica Region
    • Banská Štiavnica District
      • Vysoká
Ozdín D. et al. (2013)
South Africa
 
  • Mpumalanga
    • Ehlanzeni District Municipality
      • Mbombela Local Municipality
        • Kaapschehoop
Cairncross et al. (1995)
Sweden
 
  • Örebro County
    • Askersund
      • Zinkgruvan
Bjärnborg (2009) +1 other reference
  • Södermanland County
    • Nyköping
      • Tunaberg
NJMAh 166 +2 other references
Dobbe et al. (1998)
  • Värmland County
    • Filipstad
      • Långban Ore District
Holtstam et al. (1999)
Turkey
 
  • Diyarbakir Province
    • Ergani District
      • Ergani
Akinci (2009)
USA
 
  • California
    • Del Norte County
      • Klamath Mountains
Gail E. Dunning and Joseph F. Cooper (2002)
          • Low Divide
California Geology: 48 (5)
  • Washington
    • Kittitas County
      • Cle Elum Mining District
        • Cle Elum River
Bart Cannon analysis
Zambia
 
  • Copperbelt Province
    • Kalulushi District
      • Chambishi
Cox et al. (2003)
  • Lusaka Province
    • Rufunsa District
Frank K. Mazdab collection +2 other references
 
Mineral and/or Locality  
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