| Locality type: | Deposit |
| Classification |
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| Species: | 'Pyrochlore Group' (not an IMA approved species) |
| Formula: | A2Nb2(O,OH)6Z |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Pyrochlore Group data |
| Locality Data: | Click here to view Bayan Obo deposit, Bayan Obo mining district, Baotou City, Inner Mongolia, China |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 702963 |
| Long-form Identifier: | 1:3:702963:9 |
| GUID (UUID V4): | 0 |
| Localities for Pyrochlore Group in this Region |
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| Bayan Obo sludge lake, Bayan Obo deposit, Bayan Obo mining district, Baotou City, Inner Mongolia, China |
| East Mine, Bayan Obo deposit, Bayan Obo mining district, Baotou City, Inner Mongolia, China |
| Eastern contact zone, Bayan Obo deposit, Bayan Obo mining district, Baotou City, Inner Mongolia, China |
| H9 litho-unit, Bayan Obo deposit, Bayan Obo mining district, Baotou City, Inner Mongolia, China |
| Main pit, Bayan Obo deposit, Bayan Obo mining district, Baotou City, Inner Mongolia, China |
| West Mine, Bayan Obo deposit, Bayan Obo mining district, Baotou City, Inner Mongolia, China |
| Nearest other occurrences of Pyrochlore Group |
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| 0.4km (0.3 miles) | ⓘMain pit, Bayan Obo deposit, Bayan Obo mining district, Baotou City, Inner Mongolia, China |
| 1.0km (0.6 miles) | ⓘH9 litho-unit, Bayan Obo deposit, Bayan Obo mining district, Baotou City, Inner Mongolia, China |
| 1.2km (0.7 miles) | ⓘEast Mine, Bayan Obo deposit, Bayan Obo mining district, Baotou City, Inner Mongolia, China |
| 4.3km (2.7 miles) | ⓘEastern contact zone, Bayan Obo deposit, Bayan Obo mining district, Baotou City, Inner Mongolia, China |
| 5.3km (3.3 miles) | ⓘBayan Obo sludge lake, Bayan Obo deposit, Bayan Obo mining district, Baotou City, Inner Mongolia, China |
| 8.1km (5.0 miles) | ⓘWest Mine, Bayan Obo deposit, Bayan Obo mining district, Baotou City, Inner Mongolia, China |
| References |
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Chao, E. C. T., Back, J. M., Minkin, J. A., Tatsumoto, M., Wen, W. J., Conrad, J. E., ... & Huang, S. G. (1997). US Geological Survey Bulletin 2143: The sedimentary carbonate-hosted giant Bayan Obo REE-Fe-Nb ore deposit of Inner Mongolia, China: A cornerstone example for giant polymetallic ore deposits of hydrothermal origin. United States Geological Survey, Bulletin, 2143. Fan, H. R., Hu, F. F., Yang, K. F., & Wang, K. Y. (2006). Fluid unmixing/immiscibility as an ore-forming process in the giant REE–Nb–Fe deposit, Inner Mongolian, China: evidence from fluid inclusions. Journal of Geochemical Exploration, 89(1-3), 104-107. Campbell, L. S., Compston, W., Sircombe, K. N., Wilkinson, C. C. (2014) Zircon from the East Orebody of the Bayan Obo Fe–Nb–REE deposit, China, and SHRIMP ages for carbonatite-related magmatism and REE mineralization events. Contributions to Mineralogy and Petrology, 168 (2). 1041-1063 doi:10.1007/s00410-014-1041-3 Zhang, Shuan-Hong, Zhao, Yue, Li, Qiu-Li, Hu, Zhao-Chu, Chen, Zhen-Yu (2017) First identification of baddeleyite related/linked to contact metamorphism from carbonatites in the world's largest REE deposit, Bayan Obo in North China Craton. Lithos, 284. 654-665 doi:10.1016/j.lithos.2017.05.015 Yi-Li, Chang-Ke, Hong-She, Deng-Wang, Xu, Cheng, An-Wang, Rui-Li, Zi-Peng, Ze-Zhu, Kui-Yang, Chen, Wei, Jian-Zi, Wen-Song, Yong-Zhao, Zhang, Li, Yu, Hong, Guo, Bin, Sheng-Zhou, Xing-Yuan, Jing-Liu (2023) Geology and mineralization of the Bayan Obo supergiant carbonatite-type REE-Nb-Fe deposit in Inner Mongolia, China: A review. China Geology, 6 (4) 716-750 doi:10.31035/cg2023082 Liu, Shuang-Liang, Liu, Xuan, Fan, Hong-Rui, Butcher, Alan R, Lahaye, Yann, Michallik, Radoslaw M., Jolis, Ester M., Lukkari, Sari, Yang, Kui-Feng, Wang, Qi-Wei, et al. (2025) Scandium distribution in the Bayan Obo REE-Nb-Fe deposit, China: A multi-scale geochemical perspective. Ore Geology Reviews, 177. 106466 doi:10.1016/j.oregeorev.2025.106466 Jin, Hailong, Sun, Qing, Chen, Biao, Wei, Wei, Liu, Yanjiang, Li, Qiang (2025) Evaluated Utilization of Middle–Heavy REE Resources in Bayan Obo Deposit: Insight from Geochemical Composition and Process Mineralogy. Minerals, 15 (3). doi:10.3390/min15030212 She, Hai-Dong; Fan, Hong-Rui; Zhan, Yun-Xiang; Gu, Xiang-Ping; Li, Xiao-Chun; Yang, Kui-Feng; Wang, Qi-Wei (2025) Fuyuanite [Mg7Nb6O18(OH)8], a new hydrous magnesic-niobic oxide mineral from the Bayan Obo deposit, China. American Mineralogist, 110 (10). 1649-1657 doi:10.2138/am-2024-9676 Liu, Si-Han; Wang, Chun-Lian; Sun, Jian; Hu, Gu-Yue; Wang, Dong; Ke, Chang-Hui; Liu, Xue; Liu, Yan-Ting; You, Chao (2025) The genesis of giant fluorite resources in Bayan Obo Fe-Nb-REE deposit, Inner Mongolia of China. Ore Geology Reviews, 187. 106959 doi:10.1016/j.oregeorev.2025.106959 |
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