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Kenoargentotetrahedrite-(Fe)

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Formula:
[Ag6]4+(Ag4Fe2+2)Sb4S12
Ag in the M2 site consists of a [Ag6]4+ cluster that presumably exhibits metal-metal bonding; the "missing" M2 charge is compensated by a vacancy in the S2 site.
Crystal System:
Isometric
The name kenoargentotetrahedrite-(Fe) supplants the former name freibergite.


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Classification of Kenoargentotetrahedrite-(Fe)Hide

Approved
Notes:
Redefined by the IMA, Renamed by the IMA

Chemical Properties of Kenoargentotetrahedrite-(Fe)Hide

Formula:
[Ag6]4+(Ag4Fe2+2)Sb4S12

Ag in the M2 site consists of a [Ag6]4+ cluster that presumably exhibits metal-metal bonding; the "missing" M2 charge is compensated by a vacancy in the S2 site.

Crystallography of Kenoargentotetrahedrite-(Fe)Hide

Crystal System:
Isometric
Class (H-M):
4 3m - Hextetrahedral
Space Group:
I4 3m
Comment:
By analogy with other members of Tetrahedrite group

Type Occurrence of Kenoargentotetrahedrite-(Fe)Hide

Place of Conservation of Type Material:
Senchenberg Museum collection Frankfurt Germany 2289sa
British Museum Natural History, London BM88668
Reference:
Biagioni, C., George, L. L., Cook, N. J., Makovicky, E., Moëlo, Y., Pasero, M., ... & Bosi, F. (2020). The tetrahedrite group: Nomenclature and classification. American Mineralogist, 105(1), 109-122.

Other Language Names for Kenoargentotetrahedrite-(Fe)Hide

Relationship of Kenoargentotetrahedrite-(Fe) to other SpeciesHide

Other Members of this group:
Argentotennantite-(Zn)Ag6(Cu4Zn2)As4S12SIso. 4 3m : I4 3m
Argentotetrahedrite-(Fe)Ag6(Cu4Fe2)Sb4S12SIso. 4 3m : I4 3m
Cd-hakite(Cu,Ag)6Cu4(Cd,Zn,Cu,Hg)2(Sb,As)4(Se,S)13
Freibergite(Ag,Cu,◻)10Fe2+2Sb4S12Iso. 4 3m : I4 3m
GirauditeCu6Cu4(Fe2+,Zn)2As4Se12SIso. 4 3m : I4 3m
Goldfieldite(Cu102)Te4S12SIso. 4 3m : I4 3m
Hakite-(Hg)Cu6Cu4Hg2Sb4Se12SeIso. 4 3m : I4 3m
Rozhdestvenskayaite-(Zn)Ag6Ag4Zn2Sb4S12SIso. 4 3m : I4 3m
Tennantite-(Fe)Cu6(Cu4Fe2)As4S12S
Tennantite-(Zn)Cu6(Cu4Zn2)As4S12S
Tetrahedrite-(Fe)Cu6(Cu4Fe2)Sb4S12S
Tetrahedrite-(Hg)Cu6(Cu4Hg2)Sb4S12SIso. 4 3m : I4 3m
Tetrahedrite-(Zn)Cu6(Cu4Zn2)Sb4S12SIso. 4 3m : F4 3m
UM1992-21-S:AgFeSbAg6Ag4Fe2+2Sb4S12SIso.
Unnamed (As-analogue of Rozhdestvenskayaite-(Zn))Ag6Ag4Zn2As4S12S
Unnamed (Fe-analogue of Argentotennantite-(Zn))Ag6(Cu4Fe2)As4S12S
Unnamed (Zn-analogue of Argentotetrahedrite-(Fe))Ag6(Cu4Zn2)Sb4S12S
Zn-hakite(Cu,Ag)6Cu4(Zn,Hg,Cd,Cu)2(Sb,As)4(Se,S)13

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 Kenoargentotetrahedrite-(Fe)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Biagioni, C., et al. (2020) The tetrahedrite group: Nomenclature and classification. American Mineralogist, 105(1), 109-122. doi: https://doi.org/10.2138/am-2020-7128

Internet Links for Kenoargentotetrahedrite-(Fe)Hide

Localities for Kenoargentotetrahedrite-(Fe)Hide

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.
Germany (TL)
 
  • Saxony
    • Mittelsachsen
      • Brand-Erbisdorf
Biagioni, C., George, L. L., Cook, N. J., Makovicky, E., Moëlo, Y., Pasero, M., ... & Bosi, F. (2020). The tetrahedrite group: Nomenclature and classification. American Mineralogist, 105(1), 109-122.
      • Freiberg
        • Zug
          • Beschert Glück Mine
Biagioni, C., George, L. L., Cook, N. J., Makovicky, E., Moëlo, Y., Pasero, M., ... & Bosi, F. (2020). The tetrahedrite group: Nomenclature and classification. American Mineralogist, 105(1), 109-122.
 
Mineral and/or Locality  
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