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Cupropearceite

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Formula:
[Cu
 
6
As
 
2
S
 
7
][Ag
 
9
CuS
 
4
]
System:Trigonal
Member of:Pearceite Group
Name:For its relationship to pearceite.
This page provides mineralogical data about Cupropearceite.

Classification of Cupropearceite

IMA status:Approved 2007
Nickel-Strunz 10th (pending) edition ID:2.GB.15

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
G : Sulfarsenites, sulfantimonites, sulfbismuthites
B : Neso-sulfarsenites, etc. with additional S
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Type Occurrence of Cupropearceite

Type Locality:Sarbaiskoe deposit (Sarbai Mine; Sarbay Mine), Rudny, Kostanay Province (Qostanay Oblysy; Kostanai Oblast'), Kazakhstan

Crystallography of Cupropearceite

Crystal System:Trigonal
Class (H-M):3m (3 2/m) - Hexagonal Scalenohedral
Space Group:P3m1
Cell Parameters:a = 7.3218Å, c = 11.8877Å
Ratio:a:c = 1 : 1.624
Unit Cell Volume:V 551.90 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
11.89 (54)
3.063 (38)
2.972 (100)
2.797 (44)
2.476 (45)
2.349 (45)
2.168 (42)
1.831 (50)

Chemical Properties of Cupropearceite

Formula:
[Cu
 
6
As
 
2
S
 
7
][Ag
 
9
CuS
 
4
]
Simplified for copy/paste:[Cu6As2S7][Ag9CuS4]
Essential elements:Ag, As, Cu, S
All elements listed in formula:Ag, As, Cu, S

Relationship of Cupropearceite to other Species

Member of:Pearceite Group
Other Members of Group:

- +
Cupropolybasite
[Cu
 
6
Sb
 
2
S
 
7
][Ag
 
9
CuS
 
4
]
Pearceite
[(Ag,Cu)
 
6
(As,Sb)
 
2
S
 
7
][Ag
 
9
CuS
 
4
]
Polybasite
[(Ag,Cu)
 
6
(Sb,As)
 
2
S
 
7
][Ag
 
9
CuS
 
4
]
Selenopolybasite
[(Ag,Cu)
 
6
(Sb,As)
 
2
(S,Se)
 
7
][Ag
 
9
Cu(S,Se)
 
2
Se
 
2
]
Related Minerals - Nickel-Strunz Grouping):

- +
2.GB.05Argentotennantite
Ag
 
6
[Cu
 
4
(Fe,Zn)
 
2
]As
 
4
S
 
13
2.GB.05Freibergite
Ag
 
6
[Cu
 
4
Fe
 
2
]Sb
 
4
S
 
13-x
2.GB.05Giraudite
Cu
 
6
[Cu
 
4
(Fe,Zn)
 
2
]As
 
4
Se
 
13
2.GB.05Goldfieldite
Cu
 
12
(Te,Sb,As)
 
4
S
 
13
2.GB.05Hakite
Cu
 
6
[Cu
 
4
Hg
 
2
]Sb
 
4
Se
 
13
2.GB.05Tennantite
Cu
 
6
[Cu
 
4
(Fe,Zn)
 
2
]As
 
4
S
 
13
2.GB.05Tetrahedrite
Cu
 
6
[Cu
 
4
(Fe,Zn)
 
2
]Sb
 
4
S
 
13
2.GB.10Selenostephanite
Ag
 
5
Sb(Se,S)
 
4
2.GB.10Stephanite
Ag
 
5
SbS
 
4
2.GB.15Pearceite
[(Ag,Cu)
 
6
(As,Sb)
 
2
S
 
7
][Ag
 
9
CuS
 
4
]
2.GB.15Polybasite
[(Ag,Cu)
 
6
(Sb,As)
 
2
S
 
7
][Ag
 
9
CuS
 
4
]
2.GB.15UM2003-14-S:AgBiFeTe
Ag
 
16
FeBiTe
 
3
S
 
8
2.GB.15Selenopolybasite
[(Ag,Cu)
 
6
(Sb,As)
 
2
(S,Se)
 
7
][Ag
 
9
Cu(S,Se)
 
2
Se
 
2
]
2.GB.15Cupropolybasite
[Cu
 
6
Sb
 
2
S
 
7
][Ag
 
9
CuS
 
4
]
2.GB.15UM1979-17-S:BiCuFe
Cu
 
18
Fe
 
4
BiS
 
16
2.GB.20Galkhaite
(Cs,Tl)(Hg,Cu,Zn)
 
6
(As,Sb)
 
4
S
 
12

Other Names for Cupropearceite

Synonyms:
IMA2007-046
Other Languages:

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 Cupropearceite

Reference List:

- +
Bindi, L., M. Evain, P.G. Spry, K.T. Tait, & S. Menchetti (2007): Structural role of copper in the minerals of the pearceite-polybasite group: the case of the new minerals cupropearceite and cupropolybasite. Mineralogical Magazine 71, 641-650.

Bindi, L. & Pekov, I.V. (2009): Crystal chemistry of extremely Cu-rich cupropearceite from the Sarbay mine, Northern Kazakhstan. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 5, 44-50.

Internet Links for Cupropearceite

Search Engines:
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  • External Links:
  • Look for Cupropearceite on Webmineral
  • Look for Cupropearceite on Athena Mineralogy
  • Look for Cupropearceite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Mineral Dealers:
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  • Fabre Minerals - search for Cupropearceite specimens
  • Localities for Cupropearceite

    (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.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Central Bohemia Region
        • Příbram
          • Vrančice
            • Alexander Shaft (Alexander Mine)
    Sejkora, J., Pauliš, P., Litochleb, J., Novák, F. (2010): Příspěvek k chemickému složení minerálů skupiny pearceit-polybazit z Vrančic u Příbrami (Česká republika) [Contribution to chemical composition of the minerals of pearceite-polybasite group from Vrančice near Příbram (Czech Republic). Bulletin mineralogicko-petrologického oddělení 18 (2), 23-31. [containing minor Cl]
    Kazakhstan
     
    • Kostanay Province (Qostanay Oblysy; Kostanai Oblast')
      • Rudny
    Bindi, L., M. Evain, P.G. Spry, K.T. Tait, & S. Menchetti (2007): Structural role of copper in the minerals of the pearceite-polybasite group: the case of the new minerals cupropearceite and cupropolybasite. Mineralogical Magazine 71, 641-650.; Bindi, L. & Pekov, I.V. (2009): Crystal chemistry of extremely Cu-rich cupropearceite from the Sarbay mine, Northern Kazakhstan. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 5, 44-50.
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    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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