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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Calcite from
West Mine, Bayan Obo deposit, Bayan Obo mining district, Baotou City, Inner Mongolia, China


Locality type:Mine
Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view West Mine, Bayan Obo deposit, Bayan Obo mining district, Baotou City, Inner Mongolia, China
Data Identifiers
Mindat Occurrence Record ID:732131
Long-form Identifier:1:3:732131:3
GUID (UUID V4):0
Nearest other occurrences of Calcite
7.8km (4.8 miles) ⓘMain pit, Bayan Obo deposit, Bayan Obo mining district, Baotou City, Inner Mongolia, China
8.1km (5.0 miles) ⓘBayan Obo deposit, Bayan Obo mining district, Baotou City, Inner Mongolia, China
8.9km (5.6 miles) ⓘH9 litho-unit, Bayan Obo deposit, Bayan Obo mining district, Baotou City, Inner Mongolia, China
9.1km (5.7 miles) ⓘEast Mine, Bayan Obo deposit, Bayan Obo mining district, Baotou City, Inner Mongolia, China
9.9km (6.2 miles) ⓘSain Usu Au deposit (Saiwusu Au deposit), Darhan Muminggan United Banner (Da'erhan Maoming'an Lianheqi; Damaoqi), Baotou City, Inner Mongolia, China
12.1km (7.5 miles) ⓘEastern contact zone, Bayan Obo deposit, Bayan Obo mining district, Baotou City, Inner Mongolia, China
12.1km (7.5 miles) ⓘWu dyke, Dulahala, Bayan Obo mining district, Baotou City, Inner Mongolia, China
52.2km (32.5 miles) ⓘLaoyanghao Au deposit, Guyang County, Baotou City, Inner Mongolia, China
52.5km (32.6 miles) ⓘHaoyaoerhudong Au deposit, Urad Middle Banner (Wulate Zhongqi), Bayannur City (Bayannao'er Prefecture), Inner Mongolia, China
53.5km (33.2 miles) ⓘChangshanhao Mine (CSH Mine), Urad Middle Banner (Wulate Zhongqi), Bayannur City (Bayannao'er Prefecture), Inner Mongolia, China
References
Youbin Liang, Zhonglong Xu, and Zhiyin Hu (1981): Geology and Prospecting 17(9), 29-33
Zhongxin Yuan, Ge Bai, and Zongqing Zhang (2004): Acta Petrologica et Mineralogica 23(1), 19-25
Wu, Xinyuan; Jin, Yongli; Jia, Yan; Liu, Yubao; Wei, Yu; Dou, Chiwei (2026) Preconcentration and Flotation Recovery of Rare-Earth Minerals from Iron Beneficiation Tailings of the Bayan Obo West Mine. Minerals, 16 (9). doi:10.3390/min16090879
Liu, Yanjiang; Dai, Shuang; Liu, Shang; Tang, Qingyan; Yang, Zhanfeng; Li, Qiang; Jin, Hailong (2026) Distribution and mineralogical features of niobium in the Bayan Obo deposit: Implications for hydrothermal metasomatic Nb enrichment. Ore Geology Reviews, 197. p.107532. doi:10.1016/j.oregeorev.2026.107532
 
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