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Argentopentlandite

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Silver City, Ontonagon Co., Michigan, USA
© 2008, JGW




Formula:
Ag(Fe,Ni)
 
8
S
 
8
System:IsometricColour:Bronze brown
Hardness:3½
Member of:Pentlandite Group
Name:For its silver content and relation to pentlandite.


Pentlandite Group.

Classification of Argentopentlandite

IMA status:Approved
Strunz 8th edition ID:2/B.16-30
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:2.7.1.2

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

Co-type Localities:Taimyr (Oktyabr'skoe; Oktyabr'skoye; Oktyabr'sky) Cu-Ni deposit, Noril'sk, Putoran Plateau, Taimyr Peninsula, Taymyrskiy Autonomous Okrug, Eastern-Siberian Region, Russia
Khovu-Aksy Ni-Co Deposit, Tuva Republic, Eastern-Siberian Region, Russia
Year of Discovery:1977

Occurrences of Argentopentlandite

Geological Setting:Pyrite and cubanite hydrothermal veins, skarn deposits.

Physical Properties of Argentopentlandite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Bronze brown
Hardness (Mohs):3½
Hardness (Vickers):VHN50=132 - 154 kg/mm2
Cleavage:Very Good
Well developed on {111}
Density (calculated):4.66 g/cm3

Crystallography of Argentopentlandite

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 = 10.521(3) Å
Unit Cell Volume:V 1,164.58 ų (Calculated from Unit Cell)
Z:4
Morphology:Octahedral crystals, massive.

Optical Data of Argentopentlandite

Type:Isotropic
Colour in reflected light:Cinnamon-brown

Chemical Properties of Argentopentlandite

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

Relationship of Argentopentlandite to other Species

Member of:Pentlandite Group
Other Members of Group:

- +
Cobaltpentlandite
(Co,Ni,Fe)
 
9
S
 
8
Pentlandite
(Fe,Ni)
 
9
S
 
8
Common Associates:
PyritePyrrhotiteMackinawiteCubaniteChalcopyrite
StanniteStanniteSphaleriteQuartzCalcite
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.15Cobaltpentlandite
(Co,Ni,Fe)
 
9
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:

- +
3.2.1Acanthite
Ag
 
2
S
3.2.3Naumannite
Ag
 
2
Se
3.2.4Aguilarite
Ag
 
4
SeS
3.2.5Hessite
Ag
 
2
Te
3.2.6Empressite
AgTe
3.2.7Stützite
Ag
 
5-x
Te
 
3
, x = 0.24-0.36
3.2.8Cervelleite
Ag
 
4
TeS
3.2.9Dervillite
Ag
 
2
AsS
 
2
3.2.10Stromeyerite
AgCuS
3.2.11Mckinstryite
Ag
 
5-x
Cu
 
3+x
S
 
4
3.2.12Jalpaite
Ag
 
3
CuS
 
2
3.2.13Eucairite
AgCuSe
3.2.14Cameronite
AgCu
 
7
Te
 
10
3.2.15Henryite
Ag
 
3
Cu
 
4
Te
 
4
3.2.16Sternbergite
AgFe
 
2
S
 
3
3.2.17Argentopyrite
AgFe
 
2
S
 
3
3.2.18Geffroyite
(Cu,Fe,Ag)
 
9
(Se,S)
 
8

Other Names for Argentopentlandite

Synonyms:
IMA1970-047
Other Languages:
German:Argentopentlandit
Simplified Chinese:银镍黄铁矿
Spanish:Argentopentlandita

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.
Industrial Uses:Minor silver ore

References for Argentopentlandite

Reference List:

- +
Mineralogical Abstracts: 30: 71.

Internet Links for Argentopentlandite

Search Engines:
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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Argentopentlandite details from Handbook of Mineralogy (PDF)
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    • Localities for Argentopentlandite

    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
    		Bjerg and Brodtkorb, Argentopentlandita de mina Salamanca: una nueva especie mineral en Argentina. 6 Congreso de Mineralogía y Metalogenia; KOSTADINOFF, J. et al. Geofisica del cuerpo ultramáfico de la mina Salamanca, provincia de Mendoza. Rev. Asoc. Geol. Argent. [online]. 2004, vol.59, n.1 [citado 2011-06-03], pp. 113-120
    Botswana
     
    • North-East District
      • Francistown District
    		Maier, W.D., Barnes, S.-J., Chinyepi, G., Barton, Jr., J.M., Eglington, B., and Setshedi, I. (2008): Mineralium Deposita 43, 37-60.
    Bulgaria
     
    • Kardzali (Kurdzhali; Kărdžali; Kurdjali) Oblast
      • Rhodope Mts
        • Ivaylovgrad
    		Rev. Bulg. Geol. Soc., 58, 1, 15-18.
    Canada
     
    • Manitoba
      • Lac-du-Bonnet area
    		Canad. Mineral. , 1973, 12, pp.165-168.
      • Lynn Lake
    		No reference listed
    • Québec
      • Abitibi-Témiscamingue
        • La Vallée-de-l'Or RCM
          • Val d'Or
    		Sabina (2003) 186.
    • Yukon Territory
      • Whitehorse Mining District
        • Kluane District
    		Barkov, A.Y., Laflamme, J.H.G., Cabri, L.J., and Martin, R.F. (2002) Platinum-group minerals from the Wellgreen Cu-Ni-PGE deposit, Yukon, Canada. Canadian Mineralogist: 40: 651-669.
    China
     
    • Guangxi Zhuang Autonomous Region
      • Liuzhou Prefecture
        • Rongshui Co.
    		Zhang Zhengen, Mo Shaojian, and Lin Xuenong (1987): Chinese Journal of Geochemistry 6(3), 282-289.
    • Shanxi Province
      • Yuncheng Prefecture
        • Yuanqu Co.
          • Zhongtiaoshan ore field
    		Yongrui Zhao and Yunqing Zhen (2006): Journal of Guilin University of Technology 26(3), 310-319
    Yongrui Zhao and Yunqing Zhen (2006): Journal of Guilin University of Technology 26(3), 310-319
    • Xinjiang (Xinjiang-Uygur) Autonomous Region
      • Yili Hasake (Ili Kazakh) Autonomous Prefecture
        • Aletai (Altay) Prefecture
          • Fuyun Co. (Koktokay Co.)
    		Benhai Li, Shuangting Yi, and Xiudi Xue (1991): Xinjiang Geology 9(4); Minqing Cheng, Yuchun Yang, Fuyi Jia, Qingshan Yang, Guifang Zhao, Cunchang Wang, and Sen Huang (1993): Geology and Prospecting 29(7), 35-39
    • Yunnan Province
      • Honghe Autonomous Prefecture
        • Jinping Co.
    		Chuanjie Pu, Dexian Qin, Hong Nian, Xueshu Zhang, Pirajno, F., and Zhuguo Fan (2007): Chinese Journal of Geochemistry 26(4), 374-383.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Karlovy Vary Region
        • Krušné Hory Mts (Erzgebirge)
          • Jáchymov (St Joachimsthal) District
    		Lapis 2002(7/8), 63-65
      • South Bohemia Region
        • Prachatice
          • Vlachovo Brezi
    		Němec, D., Scharmová, M.: Argentopentlandite in olivine minette near Horní Kožlí, southern Bohemia. Časopis pro mineralogii a geologii, 1992, roč. 37, č. 4, s. 325-328.
    Finland
     
    • Eastern Finland Province
      • Outokumpu Cu-Co-Zn-Ni-Ag-Au ore field
    		No reference listed
      • Southern Karelia
        • Savonranta
    		No reference listed
    • Lapland Province
      • Kittilä
      • Penikat complex
    		Econ Geol (1986) 81:1126-1136
    Italy
     
    • Tuscany
      • Lucca Province
        • Apuan Alps
          • Stazzema
    		Benvenuti M., 1991. Ni-sulphides from Bottino mine (Tuscany, Italy). Eur. J. Miner., 3: 79-84.
    Japan
     
    • Honshu Island
      • Tohoku Region
        • Iwate Prefecture
          • Kamaishi City
    		Mariko et al (1973) Kouzan Chishitsu, 23, 355-358.
    Norway
     
    • Buskerud
      • Kongsberg
    		Bancroft, P., Nordrum, F.S. & Lyckberg, P.(2001): Kongsberg revisited. Mineralogical Record 32: 181-205
          • Overberget Mining Field
    		Nordrum, F.S.(1995): Mineralfunn på Kongsberg etter nedleggelsen av Sølvverket. Bergverksmuseets skrift nr 9 ,42-47
    Russia
     
    • Eastern-Siberian Region
      • Taymyrskiy Autonomous Okrug
        • Taimyr Peninsula
          • Putoran Plateau
            • Noril'sk
    		Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
      • Tuva Republic
    		ZVMO,(1977) 106, 688-691
    • Far-Eastern Region
      • Magadanskaya Oblast'
        • Kolyma River Basin
          • Omchak gold field
    		Goryachev, N.A., Vikent’eva, O.V., Bortnikov, N.S., Prokof’ev, V.Y., Alpatov, V.A., and Golub, V.V. (2008): Geology of Ore Deposits 50(5), 362-390.
    • Northern Region
      • Karelia Republic
        • Northern Karelia
          • Oulanka plutonic complex
            • Olanga (Oulanka) River
              • Lukkulaisvaara ultrabasic Massif (Lukkulaisvaara pluton; Lukkulaisvaara layered intrusion)
    		Mineralogical Magazine 1996 60 : 973-978.
    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
    Switzerland
     
    • Wallis (Valais)
      • Les Bagnes Valley
        • Sembrancher
          • Le Catogne Mt.
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Verlag Wepf & Co. (Basel), p. 49
    UK
     
    • England
      • Co. Durham
        • North Pennines
          • Weardale
            • Rookhope District
    		Mineralogical Magazine 1996 60 : 317-324
    Tindle, A.G. (2008) Minerals of Britian and Ireland
      • Dumfries & Galloway (Wigtownshire)
        • Newton Stewart
          • Talnotry
    		Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
    USA
     
    • Michigan
      • Ontonagon Co.
    		Mineralogy of Michigan (2004) Heinrich & Robinson
    Mineral and/or Locality
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