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
Bawmar (Baw Mar mine), Kyatpyin North, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar


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 Bawmar (Baw Mar mine), Kyatpyin North, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar
Data Identifiers
Mindat Occurrence Record ID:1109776
Long-form Identifier:1:3:1109776:5
GUID (UUID V4):0
Nearest other occurrences of Biotite
31.4km (19.5 miles) ⓘShwe-twin-war Mine, Lelgyi, Momeik Township, Kyaukme District, Shan State, Myanmar
36.4km (22.6 miles) ⓘOnzon-Kanbani Au Deposit, Thabeikkyin Township (Tha Pate Kyin Township), Pyin-Oo-Lwin District, Mandalay Region, Myanmar
72.2km (44.9 miles) ⓘYet-Kan-Zin-Taung (Yetkansin Taung), Madaya Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar
97.3km (60.5 miles) ⓘKyanigan (Kyar-Ni-Kan), Patheingyi Township, Mandalay District, Mandalay Region, Myanmar
References
Soonthorntantikul, W., Vertriest, W., Raynaud-Flattot, V.L., Sangsawong, S., Atikarnsakul, U., Khowpong, Ch., Weeramonkhonlert, V. and Pardieu, V. (2017) An in-depth gemological study of blue sapphires from the Baw Mar mine (Mogok, Myanmar). Gemmological Institute of America Report, 87 pp. [https://www.gia.edu/doc/Gemological-Study-Blue-Sapphires-Baw-Mar-Mine-Mogok-Myanmar-GIA.pdf]
 
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