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
Sandsøya Southeast, Sandsøya, Sande, Møre og Romsdal, Norway


Locality type:Outcrop
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 Sandsøya Southeast, Sandsøya, Sande, Møre og Romsdal, Norway
Data Identifiers
Mindat Occurrence Record ID:1393563
Long-form Identifier:1:3:1393563:6
GUID (UUID V4):0
Nearest other occurrences of Biotite
16.2km (10.0 miles) ⓘRemøyholmen, Sørøyane, Herøy, Møre og Romsdal, Norway
17.5km (10.9 miles) ⓘHamarsneset Beach, Runde Island, Sørøyane, Herøy, Møre og Romsdal, Norway
18.1km (11.2 miles) ⓘOtnheim, Selje, Stad, Vestland, Norway
21.7km (13.5 miles) ⓘUlsteinvik, Ulstein, Møre og Romsdal, Norway
21.9km (13.6 miles) ⓘLiset, Selje, Stad, Vestland, Norway
25.8km (16.0 miles) ⓘGusdal Olivine Pit (Åheim Olivine Pit), Almklovdalen, Vanylven, Møre og Romsdal, Norway
26.2km (16.3 miles) ⓘAlmklovdalen, Vanylven, Møre og Romsdal, Norway
32.7km (20.3 miles) ⓘSeljeneset, Nordpollen, Selje, Stad, Vestland, Norway
37.6km (23.3 miles) ⓘNybø eclogite pod, Sørpollen, Vågsøy, Kinn, Vestland, Norway
45.6km (28.4 miles) ⓘFestøya, Ørsta, Møre og Romsdal, Norway
References
Root, D. B., Hacker, B. R., Gans, P. B., Ducea, M. N., Eide, E. A., Mosenfelder, J. L. (2005) Discrete ultrahigh-pressure domains in the Western Gneiss Region, Norway: implications for formation and exhumation. Journal of Metamorphic Geology, 23 (1). 45-61 doi:10.1111/j.1525-1314.2005.00561.x
 
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