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


Locality type:Mining District
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 Pitkyaranta mining district, Pitkyarantsky District, Republic of Karelia, Russia
Data Identifiers
Mindat Occurrence Record ID:976872
Long-form Identifier:1:3:976872:7
GUID (UUID V4):0
Localities for Biotite in this Region
Linnavaara, Pitkyaranta mining district, Pitkyarantsky District, Republic of Karelia, Russia
Nuolayniemi deposit, Pitkyaranta mining district, Pitkyarantsky District, Republic of Karelia, Russia
Ristiniem peninsula, Pitkyaranta mining district, Pitkyarantsky District, Republic of Karelia, Russia
Nearest other occurrences of Biotite
3.5km (2.2 miles) ⓘRistiniem peninsula, Pitkyaranta mining district, Pitkyarantsky District, Republic of Karelia, Russia
7.6km (4.7 miles) ⓘNuolayniemi deposit, Pitkyaranta mining district, Pitkyarantsky District, Republic of Karelia, Russia
14.8km (9.2 miles) ⓘKitelskoe Sn-Zn deposit, Kitelya, Pitkyarantsky District, Republic of Karelia, Russia
14.8km (9.2 miles) ⓘKitelskoe almandine deposit, Kitelya, Pitkyarantsky District, Republic of Karelia, Russia
16.9km (10.5 miles) ⓘLinnavaara, Pitkyaranta mining district, Pitkyarantsky District, Republic of Karelia, Russia
39.4km (24.5 miles) ⓘRoikonkoski, Suojärvi District, Republic of Karelia, Russia
40.1km (24.9 miles) ⓘHamekoski occurrence, Pitkyarantsky District, Republic of Karelia, Russia
40.6km (25.2 miles) ⓘPakula gold prospect, Alattu-Pakula-Janis ore field, Pitkyarantsky District, Republic of Karelia, Russia
50.1km (31.2 miles) ⓘJalonvaara massive sulphide deposit, Jalonvaara ore field, Suojärvi District, Republic of Karelia, Russia
51.0km (31.7 miles) ⓘHatunoja-2 massive sulphide deposit, Jalonvaara ore field, Suojärvi District, Republic of Karelia, Russia
References
Ivashchenko, V. I., & Lavrov, О. В. (2006) Ore Deposits and Occurrences in the North Ladoga Region, Southwest Karelia. in Ore Deposits And Occurrences In The North Ladoga Region, Southwest Karelia Field Trip Guidebook. Understanding the genesis of ore deposits to meet the demands of the 21st century 12th Quadrennial IAGOD Symposium 2006. Moscow. P.41-64.
 
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