Vote for your favorite mineral in #MinCup26! - Monazite-(Ce) vs. Andalusite
It's a showdown with rare earth elemental ore Monazite-(Ce) and index mineral Andalusite.
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Magnetite from
Bayan Obo deposit, Bayan Obo mining district, Baotou City, Inner Mongolia, China


Locality type:Deposit
Classification
Species:Magnetite
Formula:Fe2+Fe23+O4
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Dolomite4
Bastnäsite-(Ce)4
Parisite-(Ce)4
Aegirine4
Fluorite3
Baryte2
Pyrochlore Supergroup2
Huanghoite-(Ce)2
Cebaite-(Ce)1
Data
Mineral Data:Click here to view Magnetite data
Locality Data:Click here to view Bayan Obo deposit, Bayan Obo mining district, Baotou City, Inner Mongolia, China
Data Identifiers
Mindat Occurrence Record ID:780247
Long-form Identifier:1:3:780247:8
GUID (UUID V4):0
Localities for Magnetite in this Region
Abandoned pit, 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 Magnetite
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
4.7km (2.9 miles) ⓘWu dyke, Dulahala, Bayan Obo mining district, Baotou City, Inner Mongolia, China
5.0km (3.1 miles) ⓘAbandoned pit, Bayan Obo deposit, Bayan Obo mining district, Baotou City, Inner Mongolia, China
5.4km (3.3 miles) ⓘHuanghuatan Cu-Ni-Pt-Pd deposit, Wuchuan County, Hohhot City (Huhehaote Prefecture), Inner Mongolia, China
8.1km (5.0 miles) ⓘWest Mine, Bayan Obo deposit, Bayan Obo mining district, Baotou City, Inner Mongolia, China
25.3km (15.7 miles) ⓘXiaonanshan Cu-Ni-(Pt-Pd) deposit, Wuchuan County, Hohhot City (Huhehaote Prefecture), Inner Mongolia, China
73.1km (45.4 miles) ⓘHani river placers, Urad Middle Banner (Wulate Zhongqi), Bayannur City (Bayannao'er Prefecture), Inner Mongolia, China
References
Zonglin Hou (1989): Geology and Prospecting 25(7), 1-5, 22
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
Liu, Taotao, Song, Wenlei, Kynicky, Jindrich, Yang, Jinkun, Chen, Qian, Tang, Haiyan (2022) Automated Quantitative Characterization REE Ore Mineralogy from the Giant Bayan Obo Deposit, Inner Mongolia, China. Minerals, 12 (4) 426 doi:10.3390/min12040426
Wei, Chun-wan; Xu, Cheng; Deng, Miao; Song, Wen-lei; Shi, Aiguo; Li, Zhuoqi; Fan, Chaoxi; Kuang, Guangxi (2022) Origin of metasomatic fluids in the Bayan Obo rare-earth-element deposit. Ore Geology Reviews, 141. 104654 doi:10.1016/j.oregeorev.2021.104654
Li, Hong-Tao; Yang, Kui-Feng; Gao, Yu-Pu; Zhao, Jian; Yuan, Xing-Yu; Li, Xiao-Chun; Fan, Hong-Rui (2022) Age and origin of the H9 member from the Bayan Obo Group: Implications for the genesis of the giant Bayan Obo Fe-Nb-REE deposit, China. Ore Geology Reviews, 146. doi:10.1016/j.oregeorev.2022.104927
Tian, Pengfei, Yang, Xiaoyong, Xiao, Yulun, Yuan, Wanming, He, Zifei (2022) In Situ Monazite U–Pb Ages in Thin Sections from the Giant Bayan Obo Fe–REE–Nb Deposit, Inner Mongolia: Implications for Formation Sequences. Minerals, 12 (10) 1237 doi:10.3390/min12101237
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
Zhu, Xue-Feng, Zhang, Chi, Huang, Xiao-Wen, Song, Wen-Lei, Lu, Li-Na, Hu, Qing-Cheng, Shao, Ya-Qin (2024) Principal component analysis of mineral and element composition of ores from the Bayan Obo Nb-Fe-REE deposit: Implication for mineralization process and ore classification. Ore Geology Reviews, 167. 105972 doi:10.1016/j.oregeorev.2024.105972
Yang, Bo, Yang, Li, Zhao, Yong-Gang, Yan, Guo-Ying, Liu, Jian-Yong, Meng, Wen-Xiang, Yu, Jun-Fang, Chen, Lei, Li, Xiao-Chun, Li, Xian-Hua (2024) Aeschynite Group Minerals Are a Potential Recovery Target for Niobium Resources at the Giant Bayan Obo Nb–REE–Fe Deposit in China. Minerals, 14 (10). doi:10.3390/min14101029
Liang, Pei, Wang, Junyi, Li, Bicheng, Xie, Yuling, Han, Jinsheng, Xia, Jiaming, Li, Bingbing, Chen, Li (2024) Multi-stage REE mineralization in the Bayan Obo Fe-REE-Nb deposit: Constraints from biotite and apatite geochemistry. Ore Geology Reviews, 174. 106312 doi:10.1016/j.oregeorev.2024.106312
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
Chen, Qian; Song, Wenlei; Xu, Cheng; Xue, Shanna; Xu, Danni; Chen, Biao (2025) Mineralogical and geochemical study of Nb mineralization in the giant Bayan Obo deposit. Ore Geology Reviews, 184. 106771 doi:10.1016/j.oregeorev.2025.106771
Ren, Chenghao, Jia, Hongxiang, Wang, Dongsheng, She, Hongquan, Li, Jinwen, Chen, Hui (2025) Fe, Mg, Sr-Nd-Pb, C-O isotopes and geochemical constraints on the genesis of Bayan Obo Fe-REE-Nb deposit, Inner Mongolia, Northern China. Ore Geology Reviews, 180. 106525 doi:10.1016/j.oregeorev.2025.106525
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
She, Hai-Dong; Fan, Hong-Rui; Chen, Biao; Yang, Kui-Feng; Li, Xiao-Chun; Wang, Qi-Wei (2025) The occurrence and distribution of thorium in the giant Bayan Obo REE-Nb-Fe polymetallic deposit, China. Ore Geology Reviews, 186. 106883 doi:10.1016/j.oregeorev.2025.106883
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, Nanxi; Yang, Kuifeng; Qiu, Zhengjie; She, Haidong; Hu, Fangfang; Fan, Hongrui (2026) Superposed effect of Early Paleozoic alkaline magmatic-hydrothermal activity on the Bayan Obo deposit. Ore Geology Reviews, 192. 107249 doi:10.1016/j.oregeorev.2026.107249
 
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