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Cupropearceite

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Formula:
[Cu6As2S7][Ag9CuS4]
Crystal System:
Trigonal
Name:
For its relationship to pearceite.
This page provides mineralogical data about Cupropearceite.


Hide all sections | Show all sections

Classification of CupropearceiteHide

Approved
Approval Year:
2007
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

Chemical Properties of CupropearceiteHide

Formula:
[Cu6As2S7][Ag9CuS4]

Crystallography of CupropearceiteHide

Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
P3m1
Cell Parameters:
a = 7.3218 Å, c = 11.8877 Å
Ratio:
a:c = 1 : 1.624
Unit Cell V:
551.90 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
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)

Type Occurrence of CupropearceiteHide

Synonyms of CupropearceiteHide

Other Language Names for CupropearceiteHide

Relationship of Cupropearceite to other SpeciesHide

Other Members of this group:
Benleonardite[Ag6(Sb,As)2S6Te] [Ag9Cu(S,Te)2Te2]Trig. 3m (3 2/m) : P3m1
Cupropolybasite[Cu6Sb2S7][Ag9CuS4]Trig. 3m : P3 1m
Pearceite[Ag9CuS4][(Ag,Cu)6(As,Sb)2S7]Trig. 3m (3 2/m) : P3m1
Polybasite[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]Mon. 2/m : B2/m
Selenopolybasite[(Ag,Cu)6(Sb,As)2(S,Se)7][Ag9Cu(S,Se)2Se2]Trig. 3m (3 2/m) : P3m1

Related Minerals - Nickel-Strunz GroupingHide

2.GB.05ArgentotennantiteAg6[Cu4(Fe,Zn)2]As4S13Iso. 4 3m : I4 3m
2.GB.05FreibergiteAg6[Cu4Fe2]Sb4S13-xIso. 4 3m : I4 3m
2.GB.05GirauditeCu6[Cu4(Fe,Zn)2]As4Se13Iso. 4 3m : I4 3m
2.GB.05GoldfielditeCu10Te4S13Iso. 4 3m : I4 3m
2.GB.05HakiteCu6[Cu4Hg2]Sb4Se13Iso. 4 3m : I4 3m
2.GB.05TennantiteCu6[Cu4(Fe,Zn)2]As4S13Iso. 4 3m : I4 3m
2.GB.05TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13Iso. 4 3m : I4 3m
2.GB.10SelenostephaniteAg5Sb(Se,S)4Orth.
2.GB.10StephaniteAg5SbS4Orth. mm2 : Cmc21
2.GB.15Pearceite[Ag9CuS4][(Ag,Cu)6(As,Sb)2S7]Trig. 3m (3 2/m) : P3m1
2.GB.15Polybasite[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]Mon. 2/m : B2/m
2.GB.15UM2003-14-S:AgBiFeTeAg16FeBiTe3S8
2.GB.15Selenopolybasite[(Ag,Cu)6(Sb,As)2(S,Se)7][Ag9Cu(S,Se)2Se2]Trig. 3m (3 2/m) : P3m1
2.GB.15Cupropolybasite[Cu6Sb2S7][Ag9CuS4]Trig. 3m : P3 1m
2.GB.15UM1979-17-S:BiCuFe~Cu18Fe4BiS16
2.GB.20Galkhaite(Cs,Tl)(Hg,Cu,Zn)6(As,Sb)4S12Iso. 4 3m : I4 3m

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for CupropearceiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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.
Bindi, L., Topa, D., Keutsch, F. N. (2015): How much copper can the pearceite structure sustain? The case of cupropearceite from Tsumeb, Namibia. Periodico di Mineralogia 84, 341-350.

Internet Links for CupropearceiteHide

Localities for CupropearceiteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Austria
 
  • Tyrol
    • North Tyrol
      • Inn valley
        • Brixlegg - Schwaz area
          • Brixlegg - Rattenberg
            • Reith
Kolitsch, U. (2017): 2025) Cupropearceit und weitere Mineralien in einer historischen Enargitstufe vom Matzenköpfl bei Brixlegg, Nordtirol . Pp. 239-241 in Walter, F. et al. (2017): Neue Mineralfunde aus Österreich LXVI. Carinthia II, 207./127., 217-284.
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 (TL)
 
  • 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.
Namibia
 
  • Otjikoto Region (Oshikoto)
    • Tsumeb
Bindi et al. (2015) How much copper can the pearceite structure sustain? The case of cupropearceite from Tsumeb, Namibia. Periodico di Mineralogia 84: 341-350.
Mineral and/or Locality  
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