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
Pampalo Au deposit, Ilomantsi, North Karelia, Finland


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 Pampalo Au deposit, Ilomantsi, North Karelia, Finland
Data Identifiers
Mindat Occurrence Record ID:778555
Long-form Identifier:1:3:778555:9
GUID (UUID V4):0
Nearest other occurrences of Biotite
6.7km (4.2 miles) ⓘKorpilampi, Ilomantsi, North Karelia, Finland
18.3km (11.3 miles) ⓘKivisuo prospect, Ilomantsi, North Karelia, Finland
20.3km (12.6 miles) ⓘKuittila prospect, Ilomantsi, North Karelia, Finland
85.1km (52.9 miles) ⓘHammaslahti deposit (Lähdekorpi deposit), Joensuu, North Karelia, Finland
99.3km (61.7 miles) ⓘKylylahti Mine, Polvijärvi, North Karelia, Finland
References
Geological Survey of Finland 2008. Pampalo(Ward)-Gold Database.
Eilu, Pasi (2003) Exploration for orogenic gold deposits. Fennoscandian Exploration and Mining. Rovaniemi.
Lukonin, D. (2008). Archean and proterozoic gold deposits of the Fennoscandian shield. Masters thesis Luleå University of Technology
Kuikka, J. (2018). Major and trace element characteristics of biotite and chlorite as proxies for gold ore mineralization.
Vymazalová, Anna, Kojonen, Kari, Laufek, František, Johanson, Bo, Stanley, Chris J., Plášil, Jakub, Halodová, Patricie (2019) Pampaloite, AuSbTe, a new mineral from Pampalo gold mine, Finland. Mineralogical Magazine, 83 (3) 393-400 doi:10.1180/mgm.2018.129
 
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