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
Teksevatnet South, Eigersund, Rogaland, Norway


Locality type:Deposit
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 Teksevatnet South, Eigersund, Rogaland, Norway
Data Identifiers
Mindat Occurrence Record ID:945547
Long-form Identifier:1:3:945547:4
GUID (UUID V4):0
Nearest other occurrences of Biotite
1.4km (0.9 miles) ⓘTeksestemmen, Eigersund, Rogaland, Norway
1.4km (0.9 miles) ⓘTimrevik, Eigersund, Rogaland, Norway
1.8km (1.1 miles) ⓘTeksevatnet Ti-V-P Deposit, Lund, Rogaland, Norway
3.7km (2.3 miles) ⓘBilstadvatnet West Ti-V-P Deposit, Lund, Rogaland, Norway
3.7km (2.3 miles) ⓘTerland, Eigersund, Rogaland, Norway
4.0km (2.5 miles) ⓘTerland South, Eigersund, Rogaland, Norway
5.6km (3.5 miles) ⓘVasshus Ti-V-P Deposit, Lund, Rogaland, Norway
6.0km (3.7 miles) ⓘBjuland Copper Prospect, Lund, Rogaland, Norway
7.9km (4.9 miles) ⓘHelleland, Eigersund, Rogaland, Norway
10.6km (6.6 miles) ⓘÅsen-Bjerkreim Fe-Ti Prospect, Bjerkreim, Rogaland, Norway
References
Geological Survey of Norway (NGU): The Ore Database. Deposit Area 1101 - 064. Teksevatnet S
 
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