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
Bardane, Fjørtofta, Haram, Ålesund, 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 Bardane, Fjørtofta, Haram, Ålesund, Møre og Romsdal, Norway
Data Identifiers
Mindat Occurrence Record ID:318132
Long-form Identifier:1:3:318132:4
GUID (UUID V4):0
Nearest other occurrences of Biotite
3.9km (2.4 miles) ⓘNogva eclogite outcrop, Flemsøya-Skuløya, Haram, Ålesund, Møre og Romsdal, Norway
36.9km (22.9 miles) ⓘFestøya, Ørsta, Møre og Romsdal, Norway
47.1km (29.2 miles) ⓘUlsteinvik, Ulstein, Møre og Romsdal, Norway
50.1km (31.2 miles) ⓘHamarsneset Beach, Runde Island, Sørøyane, Herøy, Møre og Romsdal, Norway
50.8km (31.6 miles) ⓘRemøyholmen, Sørøyane, Herøy, Møre og Romsdal, Norway
66.9km (41.6 miles) ⓘSandsøya Southeast, Sandsøya, Sande, Møre og Romsdal, Norway
75.0km (46.6 miles) ⓘHeggur tunnel (Fjøra-Tafjord tunnel), Tafjord, Norddal, Fjord, Møre og Romsdal, Norway
83.9km (52.1 miles) ⓘOtnheim, Selje, Stad, Vestland, Norway
85.2km (53.0 miles) ⓘGusdal Olivine Pit (Åheim Olivine Pit), Almklovdalen, Vanylven, Møre og Romsdal, Norway
85.5km (53.1 miles) ⓘAlmklovdalen, Vanylven, Møre og Romsdal, Norway
References
Carswell, D. A., Brueckner, H. K., Cuthbert, S. J., Mehta, K., O'Brien, P. J. (2003) The timing of stabilisation and the exhumation rate for ultra-high pressure rocks in the Western Gneiss Region of Norway. Journal of Metamorphic Geology, 21 (6) 601-612 doi:10.1046/j.1525-1314.2003.00467.x
 
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