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Cobaltpentlandite

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Formula:
(Co,Ni,Fe)
 
9
S
 
8
System:IsometricColour:Yellow
Lustre:MetallicHardness:4 - 4½
Member of:Pentlandite Group
Name:For its cobalt content and relation to pentlandite.


Pentlandite Group. Cobaltpentlandite-Pentlandite Series.

Classification of Cobaltpentlandite

IMA status:Approved
Strunz 8th edition ID:2/B.16-20
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:2.7.1.3

2 : SULFIDES
7 : AmBnXp, with (m+n):p = 9:8
Hey's CIM Ref.: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
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Type Occurrence of Cobaltpentlandite

Type Locality:Varislahti deposit, South Karelia, Southern Finland Region, Finland
Year of Discovery:1959

Occurrences of Cobaltpentlandite

Geological Setting:Hydrothermal veins.

Physical Properties of Cobaltpentlandite

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

Crystallography of Cobaltpentlandite

Crystal System:Isometric
Class (H-M):m3m (4/m 3 2/m) - Hexoctahedral
Space Group:Fm3m {F4/m 3 2/m}
Space Group Setting:Fm3m
Cell Parameters:a = 9.973Å
Unit Cell Volume:V 991.92 ų (Calculated from Unit Cell)
Z:4
Morphology:Exolved lammellae, crystals under 4mm.

Optical Data of Cobaltpentlandite

Type:Isotropic
Colour in reflected light:Slightly lighter bronze-yellow as compared to pentlandite

Chemical Properties of Cobaltpentlandite

Formula:
(Co,Ni,Fe)
 
9
S
 
8
Essential elements:Co, S
All elements listed in formula:Co, Fe, Ni, S
Common Impurities:Fe,Ni

Relationship of Cobaltpentlandite to other Species

Series:Forms a series with Pentlandite (see here)
Member of:Pentlandite Group
Other Members of Group:

- +
Argentopentlandite
Ag(Fe,Ni)
 
8
S
 
8
Pentlandite
(Fe,Ni)
 
9
S
 
8
Common Associates:
PyriteMarcasitePyrrhotiteTroiliteCubanite
LinnaeiteSiegeniteParkeriteBravoiteLangisite
Magnetite
Related Minerals - Nickel-Strunz Grouping):

- +
2.BB.Horomanite
Fe
 
6
Ni
 
3
S
 
8
2.BB.Samaniite
Cu
 
2
Fe
 
5
Ni
 
2
S
 
8
2.BB.UM2007-27-S:CuFeIrNiRh
(Ni,Fe,Cu,Rh,Ir)
 
11
S
 
9
2.BB.05Heazlewoodite
Ni
 
3
S
 
2
2.BB.05Oregonite
Ni
 
2
FeAs
 
2
2.BB.05Vozhminite
(Ni,Co)
 
4
(As,Sb)S
 
2
2.BB.05UM2007-30-S:Fe
Fe
 
3
S
 
2
2.BB.10Arsenohauchecornite
Ni
 
18
Bi
 
3
AsS
 
16
2.BB.10Bismutohauchecornite
Ni
 
9
Bi
 
2
S
 
8
2.BB.10Hauchecornite
Ni
 
9
Bi(Sb,Bi)S
 
8
2.BB.10Tellurohauchecornite
Ni
 
9
Bi(Te,Bi)S
 
8
2.BB.10Tučekite
Ni
 
9
Sb
 
2
S
 
8
2.BB.15Argentopentlandite
Ag(Fe,Ni)
 
8
S
 
8
2.BB.15Geffroyite
(Cu,Fe,Ag)
 
9
(Se,S)
 
8
2.BB.15Godlevskite
(Ni,Fe)
 
9
S
 
8
2.BB.15Kharaelakhite
(Pt,Cu,Pb,Fe,Ni)
 
9
S
 
8
2.BB.15Manganoshadlunite
(Mn,Pb,Cd)(Cu,Fe)
 
8
S
 
8
2.BB.15Pentlandite
(Fe,Ni)
 
9
S
 
8
2.BB.15Shadlunite
(Pb,Cd)(Fe,Cu)
 
8
S
 
8
2.BB.15Sugakiite
Cu(Fe,Ni)
 
8
S
 
8
2.BB.15UM2002-26-S:FeNi
(Ni,Fe)
 
9
S
 
8
Related Minerals - Hey's Index Grouping:

- +
3.10.2Linnaeite
Co
2+
 
Co
3+
2
S
 
4
3.10.3Cattierite
CoS
 
2
3.10.4Freboldite
CoSe
3.10.5Bornhardtite
Co
2+
 
Co
3+
2
Se
 
4
3.10.6Trogtalite
CoSe
 
2
3.10.7Hastite
3.10.8Mattagamite
CoTe
 
2
3.10.9Modderite
(Co,Fe)As
3.10.10Safflorite
(Co,Fe,Ni)As
 
2
3.10.11Clinosafflorite
(Co,Fe,Ni)As
 
2
3.10.12Skutterudite
(Co,Fe,Ni)As
 
2-3
3.10.13Cobaltite
CoAsS
3.10.14Paracostibite
CoSbS
3.10.15Costibite
CoSbS
3.10.16Alloclasite
Co
 
1-x
Fe
 
x
AsS
3.10.17Glaucodot
(Co
 
0.50
Fe
 
0.50
)AsS
3.10.18Carrollite
Cu(Co,Ni)
 
2
S
 
4

Other Names for Cobaltpentlandite

Other Languages:
German:Kobalt-Pentlandit
Simplified Chinese:钴镍黄铁矿

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Cobaltpentlandite

Reference List:

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

Gellers, S. (1962) Refinement of the crystal structure of Co9S8. Acta Crystallographica: 15: 1195-1198.

Stumpfl, E.F. and Clark, E.M. (1964) A natural occurrence of Co9S8, identified by X-ray microanalysis. Neues Jahrbuch für Mineralogie, Monatshefte 1964: 240-245.

American Mineralogist (1965): 50: 2107.

Petruk, W., Harris, D.C., and Stewart, J.M. (1969) Langisite, a new mineral, and the rare minerals cobalt pentlandite, siegenite, parkerite, and bravoite from the Langis mine, Cobalt-Gowganda area, Ontario, Canada. Canadian Mineralogist: 9: 597-605.

Canadian Mineralogist (1975): 13: 75-78.

Mozgova, N.N., Krasnov, S.G., Batuyev, B.N. Borodaev, Y.S., Efimov, A.V., Markov, V.F., and Stephanova, T.V. (1996) The first report of cobalt pentlandite from a Mid-Atlantic Ridge hydrothermal deposit. Canadian Mineralogist: 34: 23-28.

Internet Links for Cobaltpentlandite

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  • Raman and XRD data at RRUFF project
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  • Cobalt-Pentlandite details from Handbook of Mineralogy (PDF)
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    • Localities for Cobaltpentlandite

    The 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.
    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Argentina
     
    • Mendoza
    		Brodtkorb (2002): Las Especies Minerales de la Republica Argentina
    Atlantic Ocean
     
    • Mid-Atlantic Ridge complex
    		Canadian Mineralogist: 34: 23-28.
    Brazil
     
    • Pará
      • Carajás mineral province
        • Marabá
    		Monteiro, L.V.S., Xavier, R.P., de Carvalho, E.R., Hitzman, M.W., Johnson, C.A., de Souza Filho, C.R., and Torresi, I. (2008): Mineralium Deposita 43, 129-159.
        • Parauapebas
    		Monteiro, L.V.S., Xavier, R.P., de Carvalho, E.R., Hitzman, M.W., Johnson, C.A., de Souza Filho, C.R., and Torresi, I. (2008): Mineralium Deposita 43, 129-159.
    Canada
     
    • Ontario
      • Thunder Bay District
        • Marathon
    		Currie (1980)
      • Timiskaming District
        • Cobalt-Gowganda region
    		[www.ontariominerals.com]
            • Casey Township
    		Canadian Mineralogist (1969): 9: 597-605.
    • Québec
      • Abitibi-Témiscamingue
        • Rouyn-Noranda TE
    		Handbook of Mineralogy
      • Montérégie
        • Vaudreuil-Soulanges RCM
          • Vaudreuil-Dorion
    		Bowen, 1922; Harnois & Mineau, 1991
    China
     
    • Jilin Province (Manchuria; Dongbei Region)
      • Tonghua Prefecture
        • Ji'an Co.
    		http://wrgis.wr.usgs.gov/open-file/of03-220/DATABASE/lode_deposits.txt
    • Qinghai (Chinghai) Province
      • Golog (Guoluo) Autonomous Prefecture
        • Maqên Co.
          • Dur'ngoi Ophiolite
    		Duan Guolian (1991): Geology and Prospecting 27(2), 20-24
      • Haixi Autonomous Prefecture
        • Golmud (Ge'ermu) Co.
          • Qimantage Mts
    		Zhang Dequan, Wang Yan, Feng Chengyou, Li Daxin, Yan Shenghao, and Cui Yanhe (2002): Mineral Deposits 21(3), 213-222
    • Shandong Province
      • Jiaodong Peninsula (Jiaodong Gold Province)
        • Weihai Prefecture
          • Rongcheng Co.
    		http://www.ngu.no/FileArchive/165/2003_055.pdf Geological Survey of Norway / The Alice Wain Memorial West Norway Eclogite Field Symposium / Abstract Volume.
    • Shanxi Province
      • Yuncheng Prefecture
        • Jiang Co.
          • Zhongtiaoshan ore field
    		Yunqing Zhen, Jisheng Du, Liling Liu, and Yanghu Wang (1992): Geology and Prospecting 28(7), 8-13
        • Yuanqu Co.
          • Zhongtiaoshan ore field
    		Yang Weihua (1996): Geochemistry of Strata-Bound Copper Deposits. In: Tu Guangzhi and Xu Zhonglun, eds.: Geochemistry of Strata-Bound Deposits in China. Science Press, Beijing (1996), pp. 470-507.
    Yongrui Zhao and Yunqing Zhen (2006): Journal of Guilin University of Technology 26(3), 310-319
    Finland
     
    • Eastern Finland Region
    		Geological Survey of Finland, Metallogenic zones and metallic mineral deposits in Finland; arkisto.gtk.fi/sp/SP35.pdf; Am Min 44, 897.
      • Savonlinna
        • Savonranta
    		Handbook of Mineralogy
    • Lapland Region
      • Kittilä
    		http://www.gsf.fi/explor/zinc/pahtavuoma.htm
    • Northern Finland Region
      • Kuusamo
    		No reference listed
    • Southern Finland Region
      • South Karelia
    		American Mineralogist (1959), 44, 897-900
    France
     
    • Provence-Alpes-Côte d'Azur
      • Hautes-Alpes
        • Saint-Véran
    		A. Sinojmeri, M. Ohnenstetter, Z. Johan : "Nouvelles données sur la clausthalite et les tellurures du gisement de Saint Véran (Hautes Alpes)", Bull. Soc. Fr. Minéral. Cristallogr. , 1987
    Greece
     
    • Epirus (Ipeiros) Department
      • Pindos Mts
    		Handbook of Mineralogy
    • Sterea Hellas Department
      • Fthiótis Prefecture
        • Lamia
          • Othrys (Othris) Mt ophiolite complex
    		Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
    Greenland
     
    • Tunu (East Greenland) Province
      • Kangerlussuaq Firth
        • Kangerlussuaq complex
    		Mineralogical Magazine, August 2004, Vol. 68(4), pp. 615–632
    Iran
     
    • Esfahan Province (Isfahan Province; Aspadana Province)
      • Nain County (Nayin County)
        • Anarak District
    		Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
    Italy
     
    • Piedmont
      • Torino Province
        • Sesia-Lanzo zone
          • Lanzo Valley
            • Lanzo Massif
              • Balangero - Corio area
    		Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007): Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
    Japan
     
    • Hokkaido
      • Kamikawa Province
        • Shimokawa
    		Kato & Sato (1963) Kouzan Chishitsu, 13, 30.
    • Honshu Island
      • Chubu Region
        • Aichi prefecture
          • Shinshiro city
      • Kanto Region
        • Saitama Prefecture
          • Iruma-gun
    Norway
     
    • Nordland
      • Hemnes
    		Lindahl 1973; Neumann 1985, p. 18.
    • Troms
      • Bardu
    		Tufar, W. (1967): Die Kupfervererzung vom Gaskasjavri in Troms (Norwegen). Tschermaks Mineralogische und Petrographische Mitteilungen 12, 61-99.
      • Kåfjord (Gáivuotna)
        • Kåfjorddalen
    		Lindahl 1973; Neumann 1985, p. 18.
    Poland
     
    • Podlaskie
      • Suwałki District
        • Suwałki Massif
    		Kucha H., Kwiecińska B., Piestrzyński A., Wieczorek A. 1979: On the genesis of graphite from magnetite rocks of Krzemianka (NE Poland). Mineralogia Polonica, vol. 10, no 2, 81-88
    Romania
     
    • Caras-Severin Co.
      • Banat Mts
        • Ocna de Fier-Dognecea District
          • Ocna de Fier (Vaskö-Moraviţa; Vaskö-Moravicza; Eisenstein)
    		Mineralogical Magazine, Vol. 65(3), pp. 351–372
    Russia
     
    • Eastern-Siberian Region
      • Tuva Republic
        • Sayan Mts
          • Eastern Sayan
    		Alexander V. Dedeev et al (2002) The PGE-Bearing Sulphide Ores of the Kingash Mafic-Ultramafic Differentiated Intrusion and Ore Processing Characteristics, East Sajan, Russia. 9th annual platinum symposium
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
    		www.koeln.netsurf.de/~w.steffens/khib.htm
    South Africa
     
    • Mpumalanga Province
      • Barberton District
        • Kaapsche Hoop (Kaapsehoop)
    		Minerals of South Africa
    Sweden
     
    • Närke
      • Askersund
        • Zinkgruvan
    		Bjärnborg, K. (2009): The copper sulphide mineralization of the Zinkgruvan deposit, Bergslagen, Sweden. Examensarbeten i Geologi vid Lunds Universitet- Bergrundsgeologi NR 24,1-6
    • Södermanland
      • Nyköping
        • Tunaberg
    		NJMAh 166, 261 ; MinPetr 44, 89; Dobbe, R. T. M. (1991): Tellurides, Selenides and Associated Minerals in the Tunaberg Copper Deposits, SE Bergslagen, Central Sweden. Mineralogy and Petrology. 44:89-106
    Dobbe, R. T. M. and Zakrzewski, M. A. (1998): Oenite, CoSbAs, a new mineral species from the Tunaberg Cu–Co–sulfide skarns, Bergslagen, Sweden, The Canadian Mineralogist. 36, 855-860
    • Värmland
      • Filipstad
    		Nysten, P., Holtstam, D. and Jonsson, E. (1999) The Långban minerals. In Långban - The mines,their minerals, geology and explorers (D. Holtstam and J. Langhof, eds.), Swedish Museum of Natural History and Raster Förlag, Stockholm & Chr. Weise Verlag, Munich, pp. 89-183.
    USA
     
    • California
      • Del Norte Co.
        • Klamath Mts
    		 Gail E. Dunning and Joseph F. Cooper, Jr. (2002) Paragenesis of Troilite from the Low Divide District, Del Norte County, California
            • Low Divide
    		California Geology: 48(5):119
    Zambia
     
    • Copperbelt Province
      • Chambishi
    		Cox, D.P., Lindsey, D.A., Singer, D.A., Moring, B.C., and Diggles, M.F. (2003): USGS Open-File Report 03-107
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