Vote for your favorite mineral in #MinCup26! - Hafnon vs. Putnisite
It's a pair of tiny minerals of unusual chemistry as orange Hafnon battles with purple Putnisite.
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Biotite from
Xiajialing REE deposit, Le'an Co., Fuzhou, Jiangxi, 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 Xiajialing REE deposit, Le'an Co., Fuzhou, Jiangxi, China
Data Identifiers
Mindat Occurrence Record ID:1949310
Long-form Identifier:1:3:1949310:5
GUID (UUID V4):0
Nearest other occurrences of Biotite
3.7km (2.3 miles) ⓘZoujiashan U deposit (U deposit No. 612), Zoujiashan ore district, Le'an Co., Fuzhou, Jiangxi, China
8.9km (5.5 miles) ⓘShazhou U deposit (U deposit No. 615), Chongren Co., Fuzhou, Jiangxi, China
32.7km (20.3 miles) ⓘXushan W-Cu deposit, Le'an Co., Fuzhou, Jiangxi, China
References
Yang, Yongle; Li, Guanglai; Wu, Bin; Wang, Zhe; Liao, Zhiquan; Liu, Xiaodan; Rao, Gengwei (2026) REE mobilization from allanite during weathering: insights from weathered spheroids of regolith-hosted REE deposit. Ore Geology Reviews, 194. p.107355. doi:10.1016/j.oregeorev.2026.107355
 
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