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
Storli, Sauda, Rogaland, Norway


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 Storli, Sauda, Rogaland, Norway
Data Identifiers
Mindat Occurrence Record ID:948144
Long-form Identifier:1:3:948144:2
GUID (UUID V4):0
Nearest other occurrences of Biotite
1.1km (0.7 miles) ⓘBirkeland mines (Sauda mines), Sauda, Rogaland, Norway
1.3km (0.8 miles) ⓘGilbertgangen, Birkeland mines (Sauda mines), Sauda, Rogaland, Norway
1.3km (0.8 miles) ⓘStoll 2 (Hornemann Adit), Birkeland mines (Sauda mines), Sauda, Rogaland, Norway
2.8km (1.7 miles) ⓘBreidkvam, Sauda, Rogaland, Norway
25.6km (15.9 miles) ⓘBleskestad, Suldal, Rogaland, Norway
29.4km (18.3 miles) ⓘFrøvik Quarry, Vindafjord, Rogaland, Norway
47.3km (29.4 miles) ⓘKrakkanuten pegmatite, Vats, Vindafjord, Rogaland, Norway
51.2km (31.8 miles) ⓘSkår, Hjelmeland, Rogaland, Norway
57.0km (35.4 miles) ⓘSolbjør, Hjelmeland, Rogaland, Norway
60.8km (37.8 miles) ⓘForøy Quarry, Finnøy, Rogaland, Norway
References
Geological Survey of Norway. The Ore Database. 1135 - 005, Storli
 
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