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
Westbrooks Prospect, Monroe County, Georgia, USA


Locality type:Prospect
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 Westbrooks Prospect, Monroe County, Georgia, USA
Data Identifiers
Mindat Occurrence Record ID:955359
Long-form Identifier:1:3:955359:0
GUID (UUID V4):0
Nearest other occurrences of Biotite
2.9km (1.8 miles) ⓘC. M. Sutton Prospect, Monroe County, Georgia, USA
3.0km (1.8 miles) ⓘSmith Mine, Forsyth, Monroe County, Georgia, USA
4.1km (2.6 miles) ⓘColeman Prospect, Monroe County, Georgia, USA
12.4km (7.7 miles) ⓘCalloway Mine, Monroe County, Georgia, USA
12.8km (7.9 miles) ⓘAthen Prospect, Jasper County, Georgia, USA
14.6km (9.1 miles) ⓘWorsham & Goodwin Prospect, Monroe County, Georgia, USA
15.8km (9.8 miles) ⓘWillie Bowdoin Mine, Monroe County, Georgia, USA
16.1km (10.0 miles) ⓘA. T. Redding Prospects, Monroe County, Georgia, USA
18.4km (11.4 miles) ⓘJ. I. Taylor Prospects, Lamar County, Georgia, USA
19.9km (12.4 miles) ⓘF. B. Willingham Prospect, Monroe County, Georgia, USA
References
Heinrich, E.W., Klepper, M.R., Jahns, R.H. (1953) Mica deposits of the southeastern Piedmont, Part 9, Thomaston-Barnesville district, Georgia; Part 10, Outlying deposits in Georgia. Professional Paper 248f. US Geological Survey doi:10.3133/pp248f
 
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