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It's a showdown with rare earth elemental ore Monazite-(Ce) and index mineral Andalusite.
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Biotite from
Baizhangzi Au-Ag deposit, Lingyuan City, Chaoyang, Liaoning, China


Locality type:Deposit
Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Baizhangzi Au-Ag deposit, Lingyuan City, Chaoyang, Liaoning, China
Data Identifiers
Mindat Occurrence Record ID:733044
Long-form Identifier:1:3:733044:5
GUID (UUID V4):0
Nearest other occurrences of Biotite
14.3km (8.9 miles) ⓘHekanzi Mo deposit, Lingyuan City, Chaoyang, Liaoning, China
39.9km (24.8 miles) ⓘQinglonghe Au deposit, Qinglong County, Qinhuangdao, Hebei, China
43.2km (26.8 miles) ⓘXiajinbao Au-Cu deposit, Jidong gold area, Pingquan County, Chengde, Hebei, China
51.6km (32.1 miles) ⓘZhalanzhangzi Fe deposit, Qinglong County, Qinhuangdao, Hebei, China
51.8km (32.2 miles) ⓘXiaosigou Mine (Xiaoshigou Mine), Pingquan County, Chengde, Hebei, China
57.6km (35.8 miles) ⓘYu'erya Mine, Kuancheng County, Chengde, Hebei, China
65.0km (40.4 miles) ⓘSibozi-Liubozi Mo-Cu deposit, Qinglong County, Qinhuangdao, Hebei, China
84.3km (52.4 miles) ⓘMalanzhuang Mine, Qian'an Co., Tangshan, Hebei, China
84.8km (52.7 miles) ⓘBajiazi Zn-Pb-Ag deposit, Jianchang County, Huludao, Liaoning, China
86.3km (53.6 miles) ⓘMengjiagou Mine, Qian'an iron mine, Qian'an Co., Tangshan, Hebei, China
References
Guangning Jia and Chengzhu Jin (2006): Non-Ferrous Mining and Metallurgy 22(6), 1-3
 
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