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Cuprobismutite

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Tunnel Extension No. 2 Mine, Ohio District, Bullion Canyon, Tushar Mts, Piute Co., Utah, USA
© Brent Thorne

Formula:
Cu
 
10
Bi
 
12
S
 
23
System:MonoclinicColour:Dark bluish-grey
Lustre:Metallic
Name:In allusion to its content of copper and bismuth.


Structurally closely related to hodrušite and kupčíkite.

Classification of Cuprobismutite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:2/E.04-30
Nickel-Strunz 10th (pending) edition ID:2.JA.10a

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
J : Sulfosalts of PbS archetype
A : Galena derivatives with little or no Pb
Dana 8th edition ID:3.8.2.1

3 : SULFOSALTS
8 : 1 < ø < 2
Hey's CIM Ref.:5.1.8

5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
1 : Sulpharsenites etc. of Cu
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Type Occurrence of Cuprobismutite

Type Locality:Missouri Mine, Hall Valley, Montezuma District, Park Co., Colorado, USA

Physical Properties of Cuprobismutite

Lustre:Metallic
Colour:Dark bluish-grey

Crystallography of Cuprobismutite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Cell Parameters:a = 17.52(1) Å, b = 3.926(3) Å, c = 15.261(1) Å
β = 100.18(1)°
Ratio:a:b:c = 4.463 : 1 : 3.887
Unit Cell Volume:V 1,033.18 ų (Calculated from Unit Cell)
Z:2

Chemical Properties of Cuprobismutite

Formula:
Cu
 
10
Bi
 
12
S
 
23
Essential elements:Bi, Cu, S
All elements listed in formula:Bi, Cu, S

Relationship of Cuprobismutite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.JA.05eBenjaminite
(Ag,Cu)
 
3
(Bi,Pb)
 
7
S
 
12
2.JA.05gBorodaevite
Ag
 
5
(Bi,Pb,Fe)
 
8
(Sb,Bi)
 
2
S
 
17
2.JA.05aCupropavonite
AgCu
 
2
PbBi
 
5
S
 
10
2.JA.05aKitaibelite
Ag
 
10
PbBi
 
30
S
 
51
2.JA.05iLivingstonite
HgSb
 
4
S
 
8
2.JA.05dMakovickyite
Ag
 
1.5
Bi
 
5.5
S
 
9
2.JA.05fMummeite
Ag
 
2
CuPbBi
 
6
S
 
13
2.JA.05aPavonite
(Ag,Cu)(Bi,Pb)
 
3
S
 
5
2.JA.05bGrumiplucite
HgBi
 
2
S
 
4
2.JA.05hMozgovaite
PbBi
 
4
(S,Se)
 
7
2.JA.05dCupromakovickyite
Cu
 
8
Pb
 
4
Ag
 
2
Bi
 
18
S
 
36
2.JA.05cKudriavite
(Cd,Pb)Bi
 
2
S
 
4
2.JA.05aIMA2005-036
Ag
 
3
Cu
 
8
Pb
 
4
Bi
 
19
S
 
38
2.JA.05IMA2008-058
Ag
 
5
Bi
 
13
S
 
22
2.JA.10cHodrušite
Cu
 
8
Bi
 
12
S
 
22
2.JA.10ePadĕraite
Cu
 
5.9
Ag
 
1.3
Pb
 
1.6
Bi
 
11.2
S
 
22
2.JA.10dPizgrischite
Cu
 
17
Bi
 
17
S
 
35
2.JA.10bKupčíkite
(Cu,Fe)
 
4
Bi
 
5
S
 
10
2.JA.15Schapbachite
AgBiS
 
2
2.JA.15Cuboargyrite
AgSbS
 
2
2.JA.20Bohdanowiczite
AgBiSe
 
2
2.JA.20Matildite
AgBiS
 
2
2.JA.20Volynskite
AgBiTe
 
2
Related Minerals - Hey's Index Grouping:

- +
5.1.1Sinnerite
Cu
 
6
As
 
4
S
 
9
5.1.2Tennantite
(Cu,Ag,Fe,Zn)
 
12
As
 
4
S
 
13
5.1.4Chalcostibite
CuSbS
 
2
5.1.5Tetrahedrite
(Cu,Fe,Ag,Zn)
 
12
Sb
 
4
S
 
13
5.1.6Goldfieldite
Cu
 
12
(Te,Sb,As)
 
4
S
 
13
5.1.7Emplectite
CuBiS
 
2
5.1.9Wittichenite
Cu
 
3
BiS
 
3
5.1.10Hodrušite
Cu
 
8
Bi
 
12
S
 
22
5.1.11Giraudite
(Cu,Zn,Ag)
 
12
(As,Sb)
 
4
(Se,S)
 
13
5.1.11Permingeatite
Cu
 
3
SbSe
 
4

Other Names for Cuprobismutite

Other Languages:
German:Kupfersulfobismutit
Russian:Купробисмутит

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 Cuprobismutite

Reference List:Hillebrand (1884) American Journal of Science: 27: 355.

Dana (1892): 110.

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: 437.

American Mineralogist (1952): 37: 447-452.

American Mineralogist (1973): 58: 967.

Topa, Dan , Emil Makovicky, and Tonci Balic-Zunic (2004), Crystal structures and crystal chemistry of members of the cuprobismutite homologous series of sulfosalts: Canadian Mineralogist: 41: 1481-1501.

Journal of Research, US Geological Survey: 1: 99-103.

Internet Links for Cuprobismutite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Cuprobismutite in the Natural History Museum (London) online catalogue
  • Cuprobismutite details from Handbook of Mineralogy (PDF)
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    Localities for Cuprobismutite

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