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Willyamite

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Consols Mine, Broken Hill, Yancowinna Co., New South Wales, Australia
© Knut Eldjarn

Formula:
(Co,Ni)SbS
Colour:Tin-white, steel-grayHardness:5½


Cobaltite Group. Ullmannite-Willyamite Series.

Classification of Willyamite

IMA status:Approved
Strunz 8th edition ID:2/D.18-30
Nickel-Strunz 10th (pending) edition ID:2.EB.25

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
E : Metal Sulfides, M: S <= 1:2
B : M:S = 1:2, with Fe, Co, Ni, PGE, etc.
Dana 8th edition ID:2.12.3.4

2 : SULFIDES
12 : AmBnXp, with (m+n):p = 1:2
Hey's CIM Ref.:3.11.39

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

Type Locality:Consols Mine, Broken Hill, Yancowinna Co., New South Wales, Australia
Year of Discovery:1893

Physical Properties of Willyamite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Tin-white, steel-gray
Hardness (Mohs):5½

Chemical Properties of Willyamite

Formula:
(Co,Ni)SbS
Essential elements:Co, S, Sb
All elements listed in formula:Co, Ni, S, Sb
Common Impurities:Fe,As

Relationship of Willyamite to other Species

Series:Forms a series with Ullmannite (see here)
Related Minerals - Nickel-Strunz Grouping):

- +
2.EB.05aAurostibite
AuSb
 
2
2.EB.05bBambollaite
Cu(Se,Te)
 
2
2.EB.05aCattierite
CoS
 
2
2.EB.05aErlichmanite
OsS
 
2
2.EB.05aFukuchilite
Cu
 
3
FeS
 
8
2.EB.05aGeversite
PtSb
 
2
2.EB.05aHauerite
MnS
 
2
2.EB.05aInsizwaite
Pt(Bi,Sb)
 
2
2.EB.05aKrut'aite
CuSe
 
2
2.EB.05aLaurite
RuS
 
2
2.EB.05aPenroseite
(Ni,Co,Cu)Se
 
2
2.EB.05aPyrite
FeS
 
2
2.EB.05aSperrylite
PtAs
 
2
2.EB.05aTrogtalite
CoSe
 
2
2.EB.05aVaesite
NiS
 
2
2.EB.05aVillamanínite
(Cu,Ni,Co,Fe)S
 
2
2.EB.05aDzharkenite
FeSe
 
2
2.EB.05aGaotaiite
Ir
 
3
Te
 
8
2.EB.10bAlloclasite
(Co
 
0.65
Fe
 
0.35
)AsS - CoAsS
2.EB.10dCostibite
CoSbS
2.EB.10aFerroselite
FeSe
 
2
2.EB.10aFrohbergite
FeTe
 
2
2.EB.10cGlaucodot
(Co
 
0.50
Fe
 
0.50
)AsS
2.EB.10aKullerudite
NiSe
 
2
2.EB.10aMarcasite
FeS
 
2
2.EB.10aMattagamite
CoTe
 
2
2.EB.10eParacostibite
CoSbS
2.EB.10ePararammelsbergite
NiAs
 
2
2.EB.10fOenite
CoSbAs
2.EB.15aAnduoite
(Ru,Os)As
 
2
2.EB.15aClinosafflorite
(Co,Fe,Ni)As
 
2
2.EB.15aLöllingite
FeAs
 
2
2.EB.15aNisbite
NiSb
 
2
2.EB.15aOmeiite
(Os,Ru)As
 
2
2.EB.15cPaxite
CuAs
 
2
2.EB.15aRammelsbergite
NiAs
 
2
2.EB.15aSafflorite
(Co,Fe,Ni)As
 
2
2.EB.15bSeinäjokite
(Fe,Ni)(Sb,As)
 
2
2.EB.20Arsenopyrite
FeAsS - (Fe
 
0.90
Co
 
0.10
)AsS
2.EB.20Gudmundite
FeSbS
2.EB.20Osarsite
(Os,Ru)AsS
2.EB.20Ruarsite
(Ru,Os)AsS
2.EB.25Cobaltite
CoAsS
2.EB.25Gersdorffite
NiAsS
2.EB.25Hollingworthite
(Rh,Pt,Pd)AsS
2.EB.25Irarsite
(Ir,Ru,Rh,Pt)AsS
2.EB.25Jolliffeite
NiAsSe
2.EB.25Krutovite
NiAs
 
2
2.EB.25Maslovite
PtBiTe
2.EB.25Michenerite
PdBiTe
2.EB.25Padmaite
PdBiSe
2.EB.25Platarsite
(Pt,Rh,Ru)AsS
2.EB.25Testibiopalladite
PdTe(Sb,Te)
2.EB.25Tolovkite
IrSbS
2.EB.25Ullmannite
NiSbS
2.EB.25Changchengite
IrBiS
2.EB.25Mayingite
IrBiTe
2.EB.25Hollingsworthite
2.EB.25Kalungaite
PdAsSe
2.EB.25Milotaite
PdSbSe
2.EB.30Urvantsevite
Pd(Bi,Pb)
 
2
2.EB.35Rheniite
ReS
 
2
Related Minerals - Hey's Index Grouping:

- +
3.11.1Heazlewoodite
Ni
 
3
S
 
2
3.11.2Godlevskite
(Ni,Fe)
 
9
S
 
8
3.11.3Millerite
NiS
3.11.4Polydymite
Ni
2+
 
Ni
3+
2
S
 
4
3.11.5Vaesite
NiS
 
2
3.11.6Shandite
Ni
 
3
Pb
 
2
S
 
2
3.11.7Donharrisite
Ni
 
8
Hg
 
3
S
 
9
3.11.8Violarite
Fe
2+
 
Ni
3+
2
S
 
4
3.11.9Pentlandite
(Fe,Ni)
 
9
S
 
8
3.11.10Bravoite
(Fe,Ni)S
 
2
3.11.11Siegenite
from CoNi
 
2
S
 
4
 to NiCo
 
2
S
 
4
3.11.12Fletcherite
Cu(Ni,Co)
 
2
S
 
4
3.11.13Villamanínite
(Cu,Ni,Co,Fe)S
 
2
3.11.14Mäkinenite
γ-NiSe
3.11.15Sederholmite
NiSe beta-NiSe
3.11.16Trüstedtite
Ni
 
3
Se
 
4
3.11.17Wilkmanite
Ni
 
3
Se
 
4
3.11.18Kullerudite
NiSe
 
2
3.11.19Penroseite
(Ni,Co,Cu)Se
 
2
3.11.20Tyrrellite
Cu(Co
3+
 
,Ni
3+
 
)
 
2
Se
 
4
3.11.21Imgreite
NiTe (?)
3.11.22Melonite
NiTe
 
2
3.11.23Kitkaite
NiTeSe
3.11.24Dienerite
3.11.25Orcelite
Ni
 
5-x
As
 
2
3.11.26Maucherite
Ni
 
11
As
 
8
3.11.27Nickeline
NiAs
3.11.28Rammelsbergite
NiAs
 
2
3.11.29Pararammelsbergite
NiAs
 
2
3.11.30Nickelskutterudite
NiAs
 
2-3
3.11.31Oregonite
Ni
 
2
FeAs
 
2
3.11.32Westerveldite
(Fe,Ni,Co)As
3.11.33Langisite
(Co,Ni)As ratio Co:Ni = 5:1
3.11.34Gersdorffite
NiAsS
3.11.35Jolliffeite
NiAsSe
3.11.36Breithauptite
NiSb
3.11.38Ullmannite
NiSbS

Other Names for Willyamite

Other Languages:
German:Antimonnickelkobaltglanz
Willyamit
Russian:Виллиамит
Spanish:Willyamita

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 Willyamite

Reference List:Proceedings of the Royal Society of New South Wales (1893): 27: 366-375.

American Mineralogist (1971): 56: 361.

Proceedings of the Australasian Institute of Mining and Metallurgy: 233: 95-100.

Canadian Mineralogist (1986): 24: 27.

Internet Links for Willyamite

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    Localities for Willyamite

    Hide Locality List
    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.
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    (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.
    Australia
     
    • New South Wales
      • Yancowinna Co.
        • Broken Hill
    		Pittman (1893); Am.Min.:56:361 (1971)(abstract); Rocks & Min.:62:224-225.
    • Queensland
    		No reference listed
    China
     
    • Shaanxi Province
      • Baoji Prefecture
        • Taibai Co.
          • Western Qinling gold belt
    		Jingwen Mao, Yumin Qiu, Goldfarb, R.J., Zhaochong Zhang, Garwin, S., and Ren Fengshou (2002): Mineralium Deposita 37(3/4), 352-377.
    Italy
     
    • Sardinia
      • Sassari Province
        • Porto Torres
    		AA.VV., 1996. Collezionare minerali. Hobby & Work.
    Kazakhstan
     
    • Shyghys Qazaqstan Oblysy (Vostochno-Kazakhstanskaya [Eastern-Kazakhstan] Oblast')
      • Kalba Range
    		Kovalev, K.R., Kalinin, Y.A., Naumov, E.A., Pirajno, F., and Borisenko, A.S. (2009): Ore Geology Reviews 35, 186-205.
    Norway
     
    • Aust-Agder
      • Vegårdshei (Vegårshei)
    		Naik, M. S.; Griffin, W.L. & Cabri, L. J. (1976): Contribution to the mineralogy of Norway No. 62: (Co,Ni)SbS phases and argentian boulangerite in galena from Espeland, Norway. Norsk Geologisk Tidsskrift 56: 449-454
    Slovakia
     
    • Banská Bystrica Region
      • Western Slovenské Rudohorie Mts
    		Koděra et all.,1990: Topografická mineralógia Slovenska, I-III, 1590p
    Maťo,Ľ., Maťová, 1994: Mineralizácia v okolí Ozdína, výskyt zlata s obsahom Sb-Ni v tmavých bridliciach, JZ časti veporského kryštalinika (stredné Slovensko). Min.Slovaca, 26,1,30 – 37
    • Košice Region
      • Eastern Slovenské Rudohorie Mts
    		Koděra et all.,1990: Topografická mineralógia Slovenska, I-III, 1590p
    Koděra et all.,1990: Topografická mineralógia Slovenska, I-III, 1590p
    Sweden
     
    • Hälsingland
      • Ljusdal
    		No reference listed
    • Södermanland
      • Nyköping
        • Tunaberg
    		Canadian Mineralogist 29:199 -205
    • Västmanland
      • Lindesberg
    		No reference listed
    Mineral and/or Locality
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