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
Haman mine, Haman County, South Gyeongsang Province, South Korea


Locality type:Mine
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 Haman mine, Haman County, South Gyeongsang Province, South Korea
Data Identifiers
Mindat Occurrence Record ID:1815059
Long-form Identifier:1:3:1815059:5
GUID (UUID V4):0
Nearest other occurrences of Biotite
4.0km (2.5 miles) ⓘGunbuk mine, Changwon City, South Gyeongsang Province, South Korea
5.8km (3.6 miles) ⓘDaejang mine, Jinju City, South Gyeongsang Province, South Korea
47.8km (29.7 miles) ⓘSancheong district, Sancheong County, South Gyeongsang Province, South Korea
References
Lee, Tong Ha, Seo, Jung Hun, Yoo, Bong Chul, Lee, Bum Han, Han, Seung Hee, Yang, Yun Seok, Lee, Jun Hee (2021) Magmatic-Hydrothermal Processes of Vein-Type Haman-Gunbuk-Daejang Copper Deposits in the Gyeongnam Metallogenic Belt in South Korea. Frontiers in Earth Science, 9. doi:10.3389/feart.2021.752908
 
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