European Journal of Mineralogy
European Journal of Mineralogy
European Journal of Mineralogy
Articles | Volume 36, issue 3
Articles | Volume 36, issue 3
https://doi.org/10.5194/ejm-36-397-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/ejm-36-397-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 36, issue 3
New minerals, nomenclature, and classification
 | 
03 May 2024
New minerals, nomenclature, and classification |  | 03 May 2024

Kenoargentotetrahedrite-(Zn), [Ag6]4+(Cu4Zn2)Sb4S12□, a new member of the tetrahedrite group from the Yindongpo Au deposit, China

Kai Qu, Xianzhang Sima, Xiangping Gu, Weizhi Sun, Guang Fan, Zeqiang Yang, and Yanjuan Wang

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Latest update: 30 Jun 2025
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Short summary
In this paper, the full description of the extremely rare [Ag6]4+-cluster-containing new tetrahedrite-group mineral kenoargentotetrahedrite-(Zn) is reported. The structure refinement result confirms the coupling between the site occupancy factor of subvalent hexasilver clusters at the M(2) site and that of the vacancy at the S(2) site. This relationship further substantiates the charge balance substitution mechanism of S-deficiency tetrahedrites: 6M(2)Ag+ + S(2)S2– = M(2)[Ag6]4+ + S(2)□.
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