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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
Sinongduo deposit, Xaitongmoin Co. (Xietongmen Co.), Xigazê Prefecture (Rikaze Prefecture; Shigatse Prefecture), Tibet, 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 Sinongduo deposit, Xaitongmoin Co. (Xietongmen Co.), Xigazê Prefecture (Rikaze Prefecture; Shigatse Prefecture), Tibet, China
Data Identifiers
Mindat Occurrence Record ID:1639065
Long-form Identifier:1:3:1639065:8
GUID (UUID V4):0
Nearest other occurrences of Biotite
16.3km (10.1 miles) ⓘChunzhe granitic porphyry, Xaitongmoin Co. (Xietongmen Co.), Xigazê Prefecture (Rikaze Prefecture; Shigatse Prefecture), Tibet, China
22.8km (14.2 miles) ⓘNarusongduo Mine, Xaitongmoin Co. (Xietongmen Co.), Xigazê Prefecture (Rikaze Prefecture; Shigatse Prefecture), Tibet, China
30.6km (19.0 miles) ⓘChabu geothermal field, Chabu Township, Xaitongmoin Co. (Xietongmen Co.), Xigazê Prefecture (Rikaze Prefecture; Shigatse Prefecture), Tibet, China
35.8km (22.3 miles) ⓘChazangcuo Cu-Pb-Zn deposit, Xainza Co. (Shenzha Co.), Nagqu, Tibet, China
37.0km (23.0 miles) ⓘZebuxia Pb–Zn deposit, Xaitongmoin Co. (Xietongmen Co.), Xigazê Prefecture (Rikaze Prefecture; Shigatse Prefecture), Tibet, China
47.7km (29.6 miles) ⓘJiru Cu deposit, Namling Co. (Nanmulin Co.), Xigazê Prefecture (Rikaze Prefecture; Shigatse Prefecture), Tibet, China
51.4km (32.0 miles) ⓘXietongmen Cu-Au deposit, Xaitongmoin Co. (Xietongmen Co.), Xigazê Prefecture (Rikaze Prefecture; Shigatse Prefecture), Tibet, China
67.1km (41.7 miles) ⓘDongga Cu No. 3 deposit, Xiongcun ore district, Xaitongmoin Co. (Xietongmen Co.), Xigazê Prefecture (Rikaze Prefecture; Shigatse Prefecture), Tibet, China
67.6km (42.0 miles) ⓘNewtongmen Cu deposit, Xaitongmoin Co. (Xietongmen Co.), Xigazê Prefecture (Rikaze Prefecture; Shigatse Prefecture), Tibet, China
67.9km (42.2 miles) ⓘNo. II Deposit, Xiongcun Cu-(Au) deposit, Xiongcun ore district, Xaitongmoin Co. (Xietongmen Co.), Xigazê Prefecture (Rikaze Prefecture; Shigatse Prefecture), Tibet, China
References
Zhang, Peng, Li, Zhuang, Zhao, Feng, Liu, Xinkai (2024) Petrogenesis and Tectonic Implications of the Granite Porphyry in the Sinongduo Ag-Pb-Zn Deposit, Central Tibet: Constraints from Geochronology, Geochemistry, and Sr-Nd Isotopes. Minerals, 14 (7) doi:10.3390/min14070710
 
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