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Ullmannite

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Big Photo

Mt Narba Mine, San Vito, Cagliari Province, Sardinia, Italy
© 2004 ROM

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Formula:
NiSbS
System:IsometricColour:Tin-white, steel grey
Hardness:5 - 5½
Member of:Cobaltite Group
Name:Named after Johann Christoph Ullmann (1771-1821), German mineralogist and chemist.


Cobaltite Group. Ullmannite-Willyamite Series.

Classification of Ullmannite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:2/D.18-40
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:2.12.3.3

2 : SULFIDES
12 : AmBnXp, with (m+n):p = 1:2
Hey's CIM Ref.:3.11.38

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 Ullmannite

Type Locality:Storch und Schöneberg Mine, Gosenbach, Siegerland, North Rhine-Westphalia, Germany
Year of Discovery:1843

Physical Properties of Ullmannite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Tin-white, steel grey
Streak:Black, grayish black
Hardness (Mohs):5 - 5½
Hardness (Vickers):VHN100=592 - 627 kg/mm2
Tenacity:Brittle
Cleavage:Perfect
Perfect on {001}
Fracture:Irregular/Uneven
Density (measured):6.65 g/cm3
Density (calculated):6.793 g/cm3

Crystallography of Ullmannite

Crystal System:Isometric
Class (H-M):2 3 - Tetartoidal
Space Group:P21 3
Cell Parameters:a = 5.91(2) Å
Unit Cell Volume:V 206.43 ų (Calculated from Unit Cell)
Z:4
Morphology:Cubes
Comment:Arsenian ullmannite has space group P1.
Crystal Atlas:
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Ullmannite - Multiple twin on [110], contact plane {001}

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Radiation - Copper Kα
Data Set:
Horizontal Axis: ° to ° Vertical Axis: % Source Data: Filtered Data:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Optical Data of Ullmannite

Type:Isotropic
Type:Anisotropic
Anisotropism:Occasionally weakly anisotropic
Colour in reflected light:White

Chemical Properties of Ullmannite

Formula:
NiSbS
Essential elements:Ni, S, Sb
All elements listed in formula:Ni, S, Sb
Common Impurities:Fe,Co,As,Bi

Relationship of Ullmannite to other Species

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

- +
Changchengite
IrBiS
Cobaltite
CoAsS
Gersdorffite
NiAsS
Hollingworthite
(Rh,Pt,Pd)AsS
Irarsite
(Ir,Ru,Rh,Pt)AsS
Jolliffeite
NiAsSe
Kalungaite
PdAsSe
Krutovite
NiAs
 
2
Maslovite
PtBiTe
Mayingite
IrBiTe
Michenerite
PdBiTe
Milotaite
PdSbSe
Padmaite
PdBiSe
Platarsite
(Pt,Rh,Ru)AsS
Testibiopalladite
PdTe(Sb,Te)
Tolovkite
IrSbS
Willyamite
(Co,Ni)SbS
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.05aVillamaninite
(Cu,Ni,Co,Fe)S
 
2
2.EB.05aDzharkenite
FeSe
 
2
2.EB.05aGaotaiite
Ir
 
3
Te
 
8
2.EB.10bAlloclasite
Co
 
1-x
Fe
 
x
AsS
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
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.25Willyamite
(Co,Ni)SbS
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
CoNi
 
2
S
 
4
 -NiCo
 
2
S
 
4
3.11.12Fletcherite
Cu(Ni,Co)
 
2
S
 
4
3.11.13Villamaninite
(Cu,Ni,Co,Fe)S
 
2
3.11.14Mäkinenite
γ-NiSe
3.11.15Sederholmite
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
3.11.34Gersdorffite
NiAsS
3.11.35Jolliffeite
NiAsSe
3.11.36Breithauptite
NiSb
3.11.39Willyamite
(Co,Ni)SbS

Other Names for Ullmannite

Synonyms:
Antimonikel (of Beudant)Antimon-nickel (of Beudant)HartmanniteNickelspiesglaserzNickel-stibine
Other Languages:
German:Antimonnickelglanz
Antimonnickelkies
Hartmannit
Ullmannit
Russian:Ульманит
Simplified Chinese:锑硫镍矿
辉锑镍矿
Spanish:Hartmannita
Ullmannita

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 Ullmannite

Reference List:

- +
Miers (1891) Mineralogical Magazine: 9: 211.

Mieleitner (1921) Zeitschrift für Kristallographie: 56: 105.

Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 301-302.

Takeuchi, Y. (1957): The absolute structure of ullmannite, NiSbS. Mineral. J. (Sapporo) 2, 90-102.

American Mineralogist (1977): 62: 369.

American Mineralogist (1980): 65: 154-156.

Canadian Mineralogist (1986): 24: 27-33.

Mineralogical Journal: 2: 90-102.

Internet Links for Ullmannite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Ullmannite details from Handbook of Mineralogy (PDF)
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