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
Johnson Mine, Upson County, Georgia, USA


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 Johnson Mine, Upson County, Georgia, USA
Data Identifiers
Mindat Occurrence Record ID:317738
Long-form Identifier:1:3:317738:9
GUID (UUID V4):0
Nearest other occurrences of Biotite
1.5km (1.0 miles) ⓘHerron Mine, Upson County, Georgia, USA
2.4km (1.5 miles) ⓘChatfield Mine, Culloden, Monroe County, Georgia, USA
2.5km (1.5 miles) ⓘBattles Mine, Culloden, Monroe County, Georgia, USA
4.3km (2.7 miles) ⓘStevens Mine (Rock Mica Mine), Yatesville, Upson County, Georgia, USA
4.3km (2.7 miles) ⓘRev. Thaddeus Persons Mine, Monroe County, Georgia, USA
4.5km (2.8 miles) ⓘPersons West prospect, Monroe County, Georgia, USA
4.6km (2.9 miles) ⓘWalker Prospect, Upson County, Georgia, USA
4.7km (2.9 miles) ⓘReynolds Mine, Upson County, Georgia, USA
4.7km (2.9 miles) ⓘShort-Mitchell Mine, Upson County, Georgia, USA
5.4km (3.4 miles) ⓘAdams Mine, Yatesville, Upson County, Georgia, USA
References
Cook, Robert B. (1978) Minerals of Georgia: Their Properties and Occurrences. Bulletin 92. State of Georgia Department of Natural Resources
 
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