Articles | Volume 38, issue 4
https://doi.org/10.5194/ejm-38-449-2026
https://doi.org/10.5194/ejm-38-449-2026
Research article
 | 
21 Jul 2026
Research article |  | 21 Jul 2026

Xianhuaite-(Ce), K2CeNb5O15, a new niobium mineral from the Bayan Obo deposit, China

Bo Yang, Yuan Xue, Li Yang, Ningyue Sun, Guowu Li, Junfang Yu, Guoying Yan, Jianyong Liu, Yonggang Zhao, Wenxiang Meng, Zhenyu Chen, Lei Chen, Ze Liu, Zhao Yan, Xinyu Hou, Xin Ao, and Jinlong Wang

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Cited articles

Amira, Y., Gagou, Y., Menny, A., Mezzane, D., Zegzouti, A., Elaatmani, M., and El Marssi, M.: Structural and Raman properties of the tetragonal tungsten bronze ferroelectric Pb2(1−x)K1+xGdxNb5O15, Solid State Commun., 150, 419–423, https://doi.org/10.1016/j.ssc.2009.12.004, 2010. 
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Huang, Y. S., Li, X. C., Xu, X. W., Li, Q. L., Guo, Q., Liu, Y., Tang, G. Q., Li, X. H., and Fan, H. R.: New discovery of the Early Paleozoic carbonatite in Bayan Obo (China): Insights into the giant REE accumulation, Ore Geol. Rev., 170, 106156, https://doi.org/10.1016/j.oregeorev.2024.106156, 2024. 
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Short summary
Researchers studying the Bayan Obo deposit in northern China discovered an unknown mineral named xianhuaite-(Ce). The mineral contains the elements potassium, cerium, and niobium. Using microscopes, chemical analyses, and X-ray measurements, the researchers determined its structure and properties. The study shows that this mineral records the formation of rare earth and niobium ores in geological processes, improving our understanding of how these important resources formed.
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