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Kenoargentotetrahedrite-(Zn)

A valid IMA mineral species
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Formula:
[Ag6]4+(Cu4Zn2)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.
Colour:
black
Lustre:
Metallic
Specific Gravity:
5.209 (Calculated)
Crystal System:
Isometric
Name:
Named in accordance to the establishment of the nomenclature of tetrahedrite.
The name kenoargentotetrahedrite-(Zn) supplants the former name freibergite for Zn>Fe members.


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Unique IdentifiersHide

Mindat ID:
55305
Long-form identifier:
mindat:1:1:55305:8

IMA Classification of Kenoargentotetrahedrite-(Zn)Hide

Classification of Kenoargentotetrahedrite-(Zn)Hide

Strunz-mindat (2025):
2.GB.

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

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
Kattr-ZnIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of Kenoargentotetrahedrite-(Zn)Hide

Lustre:
Metallic
Transparency:
Opaque
Colour:
Black
Hardness:
VHN50=288.7 - 324.1 kg/mm2 - Vickers
Tenacity:
Brittle
Fracture:
Conchoidal
Density:
5.209 g/cm3 (Calculated)

Chemistry of Kenoargentotetrahedrite-(Zn)Hide

Mindat Formula:
[Ag6]4+(Cu4Zn2)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.
Element Weights:
Element% weight
Ag33.993 %
Sb25.580 %
S20.209 %
Cu13.350 %
Zn6.868 %

Calculated from ideal end-member formula.
Elements listed:
Ag, Cu, S, Sb, Zn - search for minerals with similar chemistry

Crystallography of Kenoargentotetrahedrite-(Zn)Hide

Crystal System:
Isometric
Class (H-M):
4 3m - Hextetrahedral
Space Group:
I4 3m
Setting:
I4 3m
Cell Parameters:
a = 10.4624(4) Å
α = 90°
Unit Cell V:
1,145.23 ų (Calculated from Unit Cell)
Z:
2

X-Ray Powder DiffractionHide

Type Occurrence of Kenoargentotetrahedrite-(Zn)Hide

Type Locality:
ⓘ Yindongpo Mine, Weishancheng ore field, Tongbai County, Nanyang, Henan, China
General Appearance of Type Material:
anhedral grains or equant crystals up to 40 µm in size
Place of Conservation of Type Material:
Geological Museum of China, No. 16 Yangrou Hutong, Xisi, Beijing 100031, People's Republic of China, catalogue number M16112
Geological Setting of Type Material:
super-large hydrothermal Au–Ag-dominated polymetallic deposit in the Tongbai orogen, central China.
Associated Minerals at Type Locality:
AcanthiteChalcopyriteGalenaKenoargentotetrahedrite-(Fe)Pyrite
QuartzSphaleriteTetrahedrite-(Zn)
Reference:
Qu, K., Sima, X., Gu, X., Sun, W., Fan, G., Yang, Z., Wang, Y. (2024) Kenoargentotetrahedrite-(Zn), [Ag₆]⁴⁺(Cu₄Zn₂)Sb₄S₁₂ □, a new member of the tetrahedrite group from the Yindongpo Au deposit, China. European Journal of Mineralogy, 36 (3) 397-409 doi:10.5194/ejm-36-397-2024

Synonyms of Kenoargentotetrahedrite-(Zn)Hide

Other Language Names for Kenoargentotetrahedrite-(Zn)Hide

Relationship of Kenoargentotetrahedrite-(Zn) to other SpeciesHide

Member of:
Freibergite Subgroup > Tetrahedrite Group
Other Members of Freibergite Subgroup:
Argentotetrahedrite-(Cd)Ag6(Cu4Cd2)Sb4S12SIso. 4 3m : I4 3m
Argentotetrahedrite-(Fe)Ag6(Cu4Fe2)Sb4S12SIso. 4 3m : I4 3m
Argentotetrahedrite-(Hg)Ag6(Cu4Hg2)Sb4S12SIso. 4 3m : I4 3m
Argentotetrahedrite-(Zn)Ag6(Cu4Zn2)Sb4S12SIso. 4 3m : I4 3m
Kenoargentotetrahedrite-(Fe)[Ag6]4+(Cu4Fe2+2)Sb4S12◻Iso. 4 3m : I4 3m

Related Minerals - Strunz-mindat GroupingHide

2.GB.Polybasite-Tac[Ag6Sb2S7][Ag9CuS4]Trig. 3m (3 2/m) : P3m1
2.GB.Argentotetrahedrite-(Hg)Ag6(Cu4Hg2)Sb4S12SIso. 4 3m : I4 3m
2.GB.Annivite-(Zn)Cu6(Cu4Zn2)Bi4S12SIso. 4 3m : I4 3m
2.GB.Pošepnýite(Cu+3◻3)(Hg2+4Cu+2)Sb4Se12(Se0.5◻0.5)Iso. 4 3m : I4 3m
2.GB.ArgentopearceiteAg16As2S11Trig. 3 2 : P3 2 1
2.GB.Tennantite-(Cu)Cu6(Cu4Cu2)As4S12SIso. 4 3m : I4 3m
2.GB.Argentopolybasite[Ag6Sb2S7][Ag9AgS4]Trig. 3 2 : P3 2 1
2.GB.Tennantite-(Mn)Cu6(Cu4Mn2)As4S12SIso. 4 3m : I4 3m
2.GB.Argentotetrahedrite-(Cd)Ag6(Cu4Cd2)Sb4S12SIso. 4 3m : I4 3m
2.GB.Stibioústalečite(Cu4Cu2)(Cu4Cu+2)(Sb2Te2)Se12SeIso. 4 3m : I4 3m
2.GB.Stibiogoldfieldite(Cu4Cu2)(Cu4Cu+2)(Sb2Te2)S12SIso. 4 3m : I4 3m
2.GB.Argentotetrahedrite-(Zn)Ag6(Cu4Zn2)Sb4S12SIso. 4 3m : I4 3m
2.GB.Tetrahedrite-(Cd)Cu6(Cu4Cd2)Sb4S12SIso. 4 3m : I4 3m
2.GB.Arsenogoldfieldite(Cu4Cu2)(Cu4Cu+2)(As2Te2)S12SIso. 4 3m : I4 3m
2.GB.Arsenoústalečite(Cu4Cu2)(Cu4Cu+2)(As2Te2)Se12SeIso. 4 3m : I4 3m
2.GB.Tennantite-(In)Cu6(Cu4(In3+Cu+))As4S12SIso. 4 3m : I4 3m
2.GB.Zvěstovite-(Fe)Ag6(Ag4Fe2+2)As4S12SIso. 4 3m : I4 3m
2.GB.Hakite-(Fe)Cu6(Cu4Fe2+2)Sb4Se12SeIso. 4 3m : I4 3m
2.GB.Tennantite-(Cd)Cu6(Cu4Cd2)As4S12SIso. 4 3m : I4 3m
2.GB.XKenorozhdestvenskayaite-(Fe)[Ag6]4+(Ag4Fe2+2)Sb4S12◻Iso. 4 3m : I4 3m
2.GB.Tetrahedrite-(Cu)Cu6(Cu4Cu2+2)Sb4S12SIso. 4 3m : I4 3m
2.GB.Hakite-(Zn)Cu6(Cu4Zn2)Sb4Se12SeIso. 4 3m : I4 3m
2.GB.Zvěstovite-(Zn)Ag6(Ag4Zn2)As4S12SIso.
2.GB.Hakite-(Cd)Cu6(Cu4Cd2)Sb4Se12SeIso. 4 3m : I4 3m
2.GB.Kenoargentotennantite-(Fe)[Ag6]4+(Cu4Fe2)As4S12◻Iso.
2.GB.Tennantite-(Hg)Cu6(Cu4Hg2)As4S12SIso. 4 3m : I4 3m
2.GB.Tetrahedrite-(Mn)Cu6(Cu4Mn2)Sb4S12SIso. 4 3m : I4 3m
2.GB.Tennantite-(Ni)Cu6(Cu4Ni2)As4S12SIso. 4 3m : I4 3m
2.GB.Tetrahedrite-(Ni)Cu6(Cu4Ni2)Sb4S12SIso. 4 3m : I4 3m
2.GB.05Hakite-(Hg)Cu6(Cu4Hg2)Sb4Se12SeIso. 4 3m : I4 3m
2.GB.05Rozhdestvenskayaite-(Zn)Ag6(Ag4Zn2)Sb4S12SIso. 4 3m : I4 3m
2.GB.05Argentotennantite-(Zn)Ag6(Cu4Zn2)As4S12SIso. 4 3m : I4 3m
2.GB.05Argentotennantite-(Fe)Ag6(Cu4Fe2)As4S12SIso. 4 3m : I4 3m
2.GB.05Freibergite Subgroup(Ag6,[Ag6]4+)(Cu4 C2+2)Sb4S12S0-1Iso. 4 3m : I4 3m
2.GB.05Tennantite SubgroupCu6(Cu4C2+2)As4S12SIso. 4 3m : I4 3m
2.GB.05Tennantite-(Zn)Cu6(Cu4Zn2)As4S12SIso. 4 3m : I4 3m
2.GB.05Tetrahedrite-(Zn)Cu6(Cu4Zn2)Sb4S12SIso. 4 3m : F4 3m
2.GB.05Tetrahedrite SubgroupCu6(Cu4C2+2)Sb4S12SIso. 4 3m : I4 3m
2.GB.05Tennantite-(Fe)Cu6(Cu4Fe2+2)As4S12SIso. 4 3m : I4 3m
2.GB.05Tetrahedrite-(Fe)Cu6(Cu4Fe2+2)Sb4S12SIso. 4 3m : I4 3m
2.GB.05Tetrahedrite-(Hg)Cu6(Cu4Hg2)Sb4S12SIso. 4 3m : I4 3m
2.GB.05Kenoargentotetrahedrite-(Fe)[Ag6]4+(Cu4Fe2+2)Sb4S12◻Iso. 4 3m : I4 3m
2.GB.05Giraudite-(Zn)Cu6(Cu4Zn2)As4Se12SeIso. 4 3m : I4 3m
2.GB.05Argentotetrahedrite-(Fe)Ag6(Cu4Fe2)Sb4S12SIso. 4 3m : I4 3m
2.GB.05Goldfieldite(Cu4◻2)(Cu4Cu+2)Te4S12SIso. 4 3m : I4 3m
2.GB.05UM1992-21-S:AgFeSbAg6(Ag4Fe2+2)Sb4S12SIso.
2.GB.10SelenostephaniteAg5SbSe4Orth. 2 2 2 : P21 21 21
2.GB.10StephaniteAg5SbS4Orth. mm2 : Cmc21
2.GB.15UM2003-14-S:AgBiFeTeAg16FeBiTe3S8
2.GB.15UM1979-17-S:BiCuFe~Cu18Fe4BiS16
2.GB.15Pearceite[Ag6As2S7][Ag9CuS4]Trig. 3m (3 2/m) : P3m1
2.GB.15Cupropolybasite[Cu6Sb2S7][Ag9CuS4]Trig. 3m : P3 1m
2.GB.15Fengruiite[Ag6Sb2S7][Ag9CuS2Te2]Trig. 3m (3 2/m) : P3m1
2.GB.15Auropearceite [Ag9AuS4][Ag6As2S7]Trig. 3 2 : P3 2 1
2.GB.15Selenopolybasite[(Ag,Cu)6(Sb,As)2(S,Se)7][Ag9Cu(S,Se)2Se2]Trig. 3m (3 2/m) : P3m1
2.GB.15Polybasite[Ag6Sb2S7][Ag9CuS4]Mon. 2/m : B2/m
2.GB.15Auropolybasite [Ag9AuS4][Ag6Sb2S7]Trig. 3 2 : P3 2 1
2.GB.15Cupropearceite[Cu6As2S7][Ag9CuS4]Trig. 3m (3 2/m) : P3m1
2.GB.20Vorontsovite(Hg5Cu)Σ6TlAs4S12Iso. 4 3m : I4 3m
2.GB.20Ferrovorontsovite(Fe5Cu)Σ6TlAs4S12Iso. 4 3m : I4 3m
2.GB.20Galkhaite(Hg5Cu)CsAs4S12Iso. 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.

Internet Links for Kenoargentotetrahedrite-(Zn)Hide

References for Kenoargentotetrahedrite-(Zn)Hide

Localities for Kenoargentotetrahedrite-(Zn)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 references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
China (TL)
 
  • Henan
    • Nanyang
      • Tongbai County
        • Weishancheng ore field
Miyawaki et al. (2021) +1 other reference
Czech Republic
 
  • Central Bohemian Region
    • Příbram District
      • Háje
        • Háje deposit
Dolníček et al. (2023)
Russia
 
  • Sverdlovsk Oblast
    • Serovsky District
      • Turya river
        • Tur'insk
Kasatkin et al. (2022)
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