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
Sjurholmen, Meland, Alver, Vestland, 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 Sjurholmen, Meland, Alver, Vestland, Norway
Data Identifiers
Mindat Occurrence Record ID:1839989
Long-form Identifier:1:3:1839989:3
GUID (UUID V4):0
Nearest other occurrences of Biotite
4.1km (2.6 miles) ⓘLiavatn marble locality, Holsnøy, Meland, Alver, Vestland, Norway
11.0km (6.8 miles) ⓘHilland Mine, Radøy, Alver, Vestland, Norway
11.2km (7.0 miles) ⓘGranulite outcrops, Radøy, Alver, Vestland, Norway
20.6km (12.8 miles) ⓘFyllingsnes, Lindås, Alver, Vestland, Norway
31.7km (19.7 miles) ⓘEspevoll, Haus, Osterøy, Vestland, Norway
References
Boundy, T. M., Donohue, C. L., Essene, E. J., Mezger, K., Austrheim, H. (2002) Discovery of eclogite facies carbonate rocks from the Lindas Nappe, Caledonides, Western Norway. Journal of Metamorphic Geology, 20 (7) 649-667 doi:10.1046/j.1525-1314.2002.00396.x
 
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