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
Terland South, Eigersund, Rogaland, Norway


Locality type:Exploration Area
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 Terland South, Eigersund, Rogaland, Norway
Data Identifiers
Mindat Occurrence Record ID:945823
Long-form Identifier:1:3:945823:9
GUID (UUID V4):0
Nearest other occurrences of Biotite
1.0km (0.6 miles) ⓘTerland, Eigersund, Rogaland, Norway
2.6km (1.6 miles) ⓘTimrevik, Eigersund, Rogaland, Norway
2.6km (1.6 miles) ⓘTeksestemmen, Eigersund, Rogaland, Norway
4.0km (2.5 miles) ⓘTeksevatnet South, Eigersund, Rogaland, Norway
5.0km (3.1 miles) ⓘHelleland, Eigersund, Rogaland, Norway
5.7km (3.5 miles) ⓘTeksevatnet Ti-V-P Deposit, Lund, Rogaland, Norway
6.9km (4.3 miles) ⓘÅsen-Bjerkreim Fe-Ti Prospect, Bjerkreim, Rogaland, Norway
7.1km (4.4 miles) ⓘBjerkreim SW Fe-Ti Occurrence deposit, Bjerkreim, Rogaland, Norway
7.7km (4.8 miles) ⓘBilstadvatnet West Ti-V-P Deposit, Lund, Rogaland, Norway
9.6km (6.0 miles) ⓘVasshus Ti-V-P Deposit, Lund, Rogaland, Norway
References
Geological Survey of Norway (NGU). The ore database. Deposit Area 1101 - 062. Terland S
 
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