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
Muzhiding Fe deposit (Nixiong Fe deposit; Nyixung Fe deposit), Nixiong Fe-Cu ore field (Nyixung Fe-Cu ore field), Coqên Co. (Cuoqin Co.), Ngari, 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 Muzhiding Fe deposit (Nixiong Fe deposit; Nyixung Fe deposit), Nixiong Fe-Cu ore field (Nyixung Fe-Cu ore field), Coqên Co. (Cuoqin Co.), Ngari, Tibet, China
Data Identifiers
Mindat Occurrence Record ID:802091
Long-form Identifier:1:3:802091:8
GUID (UUID V4):0
Nearest other occurrences of Biotite
79.8km (49.6 miles) ⓘLonggen Pb-Zn deposit, Ngamring Co. (Angren Co.), Xigazê Prefecture (Rikaze Prefecture; Shigatse Prefecture), Tibet, China
80.4km (49.9 miles) ⓘLuerma porphyry Cu deposit, Coqên Co. (Cuoqin Co.), Ngari, Tibet, China
80.9km (50.3 miles) ⓘChagele Pb-Zn deposit, Nyima Co. (Nima Co.), Nagqu, Tibet, China
References
Weizheng Hu, Xiaowen Huang, and Jinming Jiang (2006): Resources Survey and Environment 27(3), 200-208
 
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