European Journal of Mineralogy
European Journal of Mineralogy
European Journal of Mineralogy
Articles | Volume 38, issue 4
Articles | Volume 38, issue 4
https://doi.org/10.5194/ejm-38-519-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/ejm-38-519-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 38, issue 4
New minerals, nomenclature, and classification
 | 
13 Aug 2026
New minerals, nomenclature, and classification |  | 13 Aug 2026

Fengruiite, [Ag6Sb2S7][Ag9CuS2Te2], a new Ag–Sb–Te sulfosalt mineral from the Haopinggou Ag–Pb–Zn–Au deposit, eastern Qinling, China

Yongfei Tian, Guowu Li, Ningyue Sun, Min Liu, Jingwen Mao, Yunpeng Dong, Peng Liu, Wei Jian, Wei Yao, Xiuquan Wang, and Huishou Ye

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Short summary
We studied a newly discovered silver-rich mineral from an ore deposit in central China to understand how silver is stored in nature. Using microscopy, chemical, and crystal-structure tests, we found that this mineral is a new species with a unique tellurium-rich structure. Our results show that tellurium helped trap and concentrate silver in hot mineral-forming fluids, offering new clues to how silver-rich deposits form.
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