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
Pakula gold prospect, Alattu-Pakula-Janis ore field, Pitkyarantsky District, Republic of Karelia, Russia


Locality type:Prospect
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 Pakula gold prospect, Alattu-Pakula-Janis ore field, Pitkyarantsky District, Republic of Karelia, Russia
Data Identifiers
Mindat Occurrence Record ID:976818
Long-form Identifier:1:3:976818:5
GUID (UUID V4):0
Nearest other occurrences of Biotite
8.0km (5.0 miles) ⓘHamekoski occurrence, Pitkyarantsky District, Republic of Karelia, Russia
17.1km (10.7 miles) ⓘJalonvaara massive sulphide deposit, Jalonvaara ore field, Suojärvi District, Republic of Karelia, Russia
19.1km (11.9 miles) ⓘHatunoja-2 massive sulphide deposit, Jalonvaara ore field, Suojärvi District, Republic of Karelia, Russia
23.9km (14.8 miles) ⓘLinnavaara, Pitkyaranta mining district, Pitkyarantsky District, Republic of Karelia, Russia
25.8km (16.0 miles) ⓘKitelskoe almandine deposit, Kitelya, Pitkyarantsky District, Republic of Karelia, Russia
25.8km (16.0 miles) ⓘKitelskoe Sn-Zn deposit, Kitelya, Pitkyarantsky District, Republic of Karelia, Russia
27.3km (17.0 miles) ⓘRoikonkoski, Suojärvi District, Republic of Karelia, Russia
33.3km (20.7 miles) ⓘNuolayniemi deposit, Pitkyaranta mining district, Pitkyarantsky District, Republic of Karelia, Russia
43.4km (26.9 miles) ⓘPitkyaranta mining district, Pitkyarantsky District, Republic of Karelia, Russia
43.9km (27.3 miles) ⓘRistiniem peninsula, Pitkyaranta mining district, Pitkyarantsky 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.
Ivashchenko, Vasily I. (2024) Ore Formation and Mineralogy of the Alattu–Päkylä Gold Occurrence, Ladoga Karelia, Russia. Minerals, 14 (11). doi:10.3390/min14111172
 
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