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
Vuonnemiok River Valley, Murmansk Oblast, Russia


Locality type:River Valley
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 Vuonnemiok River Valley, Murmansk Oblast, Russia
Data Identifiers
Mindat Occurrence Record ID:116201
Long-form Identifier:1:3:116201:1
GUID (UUID V4):0
Nearest other occurrences of Biotite
18.4km (11.4 miles) ⓘHackman Valley, Yukspor Mountain, Murmansk Oblast, Russia
18.5km (11.5 miles) ⓘOlenii Ruchei (Olenii Creek; Oleny Ruchei), Carbonatite Stock in the vicinity of Tul'ilukht Bay, Murmansk Oblast, Russia
18.9km (11.8 miles) ⓘYukspor Mountain, Murmansk Oblast, Russia
19.7km (12.2 miles) ⓘCarbonatite Stock in the vicinity of Tul'ilukht Bay, Murmansk Oblast, Russia
20.0km (12.4 miles) ⓘMaterial'naya Adit, Yukspor Mountain, Murmansk Oblast, Russia
22.1km (13.7 miles) ⓘKirovskii apatite mine, Kukisvumchorr Mt, Murmansk Oblast, Russia
26.2km (16.3 miles) ⓘTuliok River head, East slope, Kukisvumchorr Mt, Murmansk Oblast, Russia
30.1km (18.7 miles) ⓘMarchenko Peak, Kukisvumchorr Mt, Murmansk Oblast, Russia
37.1km (23.1 miles) ⓘSalmagorsky complex, Kola Peninsula, Murmansk Oblast, Russia
38.4km (23.8 miles) ⓘYubileinaya pegmatite, Karnasurt Mountain, Lovozersky District, Murmansk Oblast, Russia
References
Pekov, Igor V. (1998) Minerals first discovered on the territory of the former Soviet Union. Ocean Pictures, Moscow. 369pp.
 
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