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
Nuolayniemi deposit, Pitkyaranta mining district, Pitkyarantsky District, Republic of Karelia, Russia


Locality type:Vein
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 Nuolayniemi deposit, Pitkyaranta mining district, Pitkyarantsky District, Republic of Karelia, Russia
Data Identifiers
Mindat Occurrence Record ID:1493918
Long-form Identifier:1:3:1493918:9
GUID (UUID V4):0
Nearest other occurrences of Biotite
7.8km (4.8 miles) ⓘKitelskoe Sn-Zn deposit, Kitelya, Pitkyarantsky District, Republic of Karelia, Russia
7.8km (4.8 miles) ⓘKitelskoe almandine deposit, Kitelya, Pitkyarantsky District, Republic of Karelia, Russia
9.4km (5.8 miles) ⓘLinnavaara, Pitkyaranta mining district, Pitkyarantsky District, Republic of Karelia, Russia
10.2km (6.4 miles) ⓘPitkyaranta mining district, Pitkyarantsky District, Republic of Karelia, Russia
10.7km (6.6 miles) ⓘRistiniem peninsula, Pitkyaranta mining district, Pitkyarantsky District, Republic of Karelia, Russia
32.5km (20.2 miles) ⓘHamekoski occurrence, Pitkyarantsky District, Republic of Karelia, Russia
33.3km (20.7 miles) ⓘPakula gold prospect, Alattu-Pakula-Janis ore field, Pitkyarantsky District, Republic of Karelia, Russia
35.3km (21.9 miles) ⓘRoikonkoski, Suojärvi District, Republic of Karelia, Russia
43.8km (27.2 miles) ⓘJalonvaara massive sulphide deposit, Jalonvaara ore field, Suojärvi District, Republic of Karelia, Russia
44.8km (27.8 miles) ⓘHatunoja-2 massive sulphide deposit, Jalonvaara ore field, Suojärvi District, Republic of Karelia, Russia
References
I.V.Pekov. E.A.Vlasov. E.A.Gerasimova Pitkyarantskaya mineralogical practice, Max Press, 2008, 68pp (in Russisan)
 
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