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
Covăsinţ, Highiş Massif, Arad County, Romania


Locality type:Complex
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 Covăsinţ, Highiş Massif, Arad County, Romania
Data Identifiers
Mindat Occurrence Record ID:1586632
Long-form Identifier:1:3:1586632:1
GUID (UUID V4):0
Nearest other occurrences of Biotite
2.3km (1.4 miles) ⓘŞoimuş Ilii vein, Highiş Massif, Arad County, Romania
32.7km (20.3 miles) ⓘTalagiu Cu-Au deposit, Chisindia, Arad County, Romania
91.7km (57.0 miles) ⓘDelineşti deposit, Brebu, Caraş-Severin County, Romania
92.6km (57.6 miles) ⓘDeva Mine, Deva, Hunedoara County, Romania
94.5km (58.7 miles) ⓘVoia Cu deposit, Băița, Hunedoara County, Romania
References
Varga, Andrea, Pozsár, Attila, Zajzon, Norbert, Topa, Boglárka, Benkó, Zsolt, Pál-Molnár, Elemér, Raucsik, Béla (2023) Effects of Metasomatism on Granite-Related Mineral Systems: A Boron-Rich Open Greisen System in the Highiş Granitoids (Apuseni Mountains, Romania) Minerals, 13 (8) doi:10.3390/min13081083
 
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