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
Øykjalifjellet Pegmatite Locality, Bjerkreim, Rogaland, Norway


Locality type:Pegmatite
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 Øykjalifjellet Pegmatite Locality, Bjerkreim, Rogaland, Norway
Data Identifiers
Mindat Occurrence Record ID:946463
Long-form Identifier:1:3:946463:6
GUID (UUID V4):0
Nearest other occurrences of Biotite
1.4km (0.9 miles) ⓘØykjalifjellet Iron Prospects, Bjerkreim, Rogaland, Norway
6.0km (3.7 miles) ⓘØrsdalen Mines, Bjerkreim, Rogaland, Norway
6.2km (3.9 miles) ⓘHovland Molybdenum Prospects, Ørsdalen Mines, Bjerkreim, Rogaland, Norway
9.8km (6.1 miles) ⓘStemknuten, Eigersund, Rogaland, Norway
10.9km (6.8 miles) ⓘTunshomstølen, Lund, Rogaland, Norway
17.8km (11.1 miles) ⓘBjuland Copper Prospect, Lund, Rogaland, Norway
20.6km (12.8 miles) ⓘVasshus Ti-V-P Deposit, Lund, Rogaland, Norway
20.8km (12.9 miles) ⓘBilstadvatnet West Ti-V-P Deposit, Lund, Rogaland, Norway
21.4km (13.3 miles) ⓘTeksevatnet Ti-V-P Deposit, Lund, Rogaland, Norway
22.5km (14.0 miles) ⓘTeksevatnet South, Eigersund, Rogaland, Norway
References
Geological Survey of Norway. The Ore Database, Deposit Area 1114 - 002, Øykjalifjellet
 
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