Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Biotite from
Pusangguo deposit, Namling Co. (Nanmulin 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 Pusangguo deposit, Namling Co. (Nanmulin Co.), Xigazê Prefecture (Rikaze Prefecture; Shigatse Prefecture), Tibet, China
Data Identifiers
Mindat Occurrence Record ID:1244574
Long-form Identifier:1:3:1244574:7
GUID (UUID V4):0
Nearest other occurrences of Biotite
39.7km (24.6 miles) ⓘGangjiang Cu-Mo deposit, Nyêmo Co. (Nimu Co.), Lhasa, Tibet, China
49.7km (30.9 miles) ⓘJiru Cu deposit, Namling Co. (Nanmulin Co.), Xigazê Prefecture (Rikaze Prefecture; Shigatse Prefecture), Tibet, China
49.9km (31.0 miles) ⓘBairong Cu-Mo deposit, Nyêmo Co. (Nimu Co.), Lhasa, Tibet, China
55.2km (34.3 miles) ⓘChongjiang Cu-(Mo-Au) deposit, Nyêmo Co. (Nimu Co.), Lhasa, Tibet, China
58.7km (36.5 miles) ⓘTinggong Cu-Mo deposit (Tingguan Cu-Mo deposit), Nyêmo Co. (Nimu Co.), Lhasa, Tibet, China
73.2km (45.5 miles) ⓘNarusongduo Mine, Xaitongmoin Co. (Xietongmen Co.), Xigazê Prefecture (Rikaze Prefecture; Shigatse Prefecture), Tibet, China
77.4km (48.1 miles) ⓘNianzha deposit, Rinbung Co. (Renbu Co.), Xigazê Prefecture (Rikaze Prefecture; Shigatse Prefecture), Tibet, China
84.7km (52.6 miles) ⓘXietongmen Cu-Au deposit, Xaitongmoin Co. (Xietongmen Co.), Xigazê Prefecture (Rikaze Prefecture; Shigatse Prefecture), Tibet, China
91.5km (56.8 miles) ⓘChunzhe granitic porphyry, Xaitongmoin Co. (Xietongmen Co.), Xigazê Prefecture (Rikaze Prefecture; Shigatse Prefecture), Tibet, China
93.7km (58.2 miles) ⓘSinongduo deposit, Xaitongmoin Co. (Xietongmen Co.), Xigazê Prefecture (Rikaze Prefecture; Shigatse Prefecture), Tibet, China
References
Li, Zhuang, Lang, Xinghai, Rickleman, Daniel, Duan, Jilin, Zhang, Qizhi (2019) Age and genesis of the Pusangguo skarn Cu-dominated polymetallic deposit, Gangdese metallogenic belt, Tibet. Journal of Asian Earth Sciences, 169. 210-227 doi:10.1016/j.jseaes.2018.08.020
Li, Zhuang; Zhang, Peng; Zhu, Junrong; Xu, Jiaoqi; Niu, Xudong (2022) Fluid origin and evolution of the Pusangguo Cu–Pb–Zn skarn deposit in Tibet: Constraints from fluid inclusions and isotope compositions. Ore Geology Reviews, 150. p.105197. doi:10.1016/j.oregeorev.2022.105197
Liu, Chang; Zhang, Xiong; Yang, Zhusen; Zhao, Xiaoyan (2025) The metallogenic age and geodynamic implications of the Pusangguo copper polymetallic deposit in central Tibet. Ore Geology Reviews, 186. 106913 doi:10.1016/j.oregeorev.2025.106913
 
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