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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
Huangchengshan Ag deposit, Luoshan Co., Xinyang, Henan, 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 Huangchengshan Ag deposit, Luoshan Co., Xinyang, Henan, China
Data Identifiers
Mindat Occurrence Record ID:742449
Long-form Identifier:1:3:742449:6
GUID (UUID V4):0
Nearest other occurrences of Biotite
3.8km (2.3 miles) ⓘMushan Mo-(Cu) deposit, Luoshan Co., Xinyang, Henan, China
40.7km (25.3 miles) ⓘQian'echong Cu-Mo deposit, Guangshan Co., Xinyang, Henan, China
60.6km (37.7 miles) ⓘYaochong Mo deposit, Xin Co., Xinyang, Henan, China
70.9km (44.1 miles) ⓘDongyuemiao eclogite, Hong'an Co., Huanggang, Hubei, China
75.8km (47.1 miles) ⓘQian'echong Mo deposit, Guangshui Co., Suizhou, Hubei, China
91.8km (57.0 miles) ⓘHuangjiagou ore block, Suixian Mo deposit, Sui Co., Suizhou, Hubei, China
References
Hongwei Wu (2004): Geology and Prospecting 40(3), 26-30
 
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