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
Gangjiang Cu-Mo deposit, Nyêmo Co. (Nimu Co.), Lhasa, 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 Gangjiang Cu-Mo deposit, Nyêmo Co. (Nimu Co.), Lhasa, Tibet, China
Data Identifiers
Mindat Occurrence Record ID:801479
Long-form Identifier:1:3:801479:5
GUID (UUID V4):0
Nearest other occurrences of Biotite
14.1km (8.7 miles) ⓘBairong Cu-Mo deposit, Nyêmo Co. (Nimu Co.), Lhasa, Tibet, China
16.2km (10.1 miles) ⓘChongjiang Cu-(Mo-Au) deposit, Nyêmo Co. (Nimu Co.), Lhasa, Tibet, China
19.1km (11.9 miles) ⓘTinggong Cu-Mo deposit (Tingguan Cu-Mo deposit), Nyêmo Co. (Nimu Co.), Lhasa, Tibet, China
39.7km (24.6 miles) ⓘPusangguo deposit, Namling Co. (Nanmulin Co.), Xigazê Prefecture (Rikaze Prefecture; Shigatse Prefecture), Tibet, China
40.2km (25.0 miles) ⓘNianzha deposit, Rinbung Co. (Renbu Co.), Xigazê Prefecture (Rikaze Prefecture; Shigatse Prefecture), Tibet, China
66.7km (41.4 miles) ⓘLiangguo corundum deposit, Qüxü Co. (Qushui Co.), Lhasa, Tibet, China
89.4km (55.5 miles) ⓘJiru Cu deposit, Namling Co. (Nanmulin Co.), Xigazê Prefecture (Rikaze Prefecture; Shigatse Prefecture), Tibet, China
References
Chengbiao Leng, Xingchun Zhang, and Weide Zhou (2010): Earth Science Frontiers 17(2), 185-197
Jiang, Hua; Yang, Fucheng; Xu, Zhongbiao; Li, Wenchang; Wang, Xiaoyu; Liu, Anlin; Jiang, Lili; Li, Sheng; Jiang, Xiaojun; Yan, Qinggao; et al. (2024) The origin of Gangjiang adakite-like intrusions and associated porphyry Cu–Mo mineralization in the central Gangdese porphyry Cu belt, southern Tibet. Ore Geology Reviews, 172. 106190 doi:10.1016/j.oregeorev.2024.106190
 
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