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
Four Pits prospect, Clay County, Alabama, 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 Four Pits prospect, Clay County, Alabama, USA
Data Identifiers
Mindat Occurrence Record ID:958490
Long-form Identifier:1:3:958490:7
GUID (UUID V4):0
Nearest other occurrences of Biotite
0.2km (0.1 miles) ⓘLett No. 1 and 2 Prospects, Clay County, Alabama, USA
0.9km (0.6 miles) ⓘM&G Mine, Clay County, Alabama, USA
8.4km (5.2 miles) ⓘBob Lee No. 2 Mine, Clay County, Alabama, USA
12.5km (7.8 miles) ⓘJones-Bunn prospect, Clay County, Alabama, USA
15.6km (9.7 miles) ⓘJ. J. Smith No. 2 prospect, Clay County, Alabama, USA
17.2km (10.7 miles) ⓘPitts No. 1 Mine, Weathers Mine, Clay County, Alabama, USA
20.0km (12.4 miles) ⓘPearce Lenless Nos. 2; 3 & 4 Prospects, Randolph County, Alabama, USA
25.4km (15.8 miles) ⓘArnott Road Prospect, Randolph County, Alabama, USA
26.3km (16.4 miles) ⓘTrommell No. 2 Prospects, Randolph County, Alabama, USA
26.8km (16.6 miles) ⓘClouse prospects, Randolph County, Alabama, USA
References
Heinrich, E.W., Olson, J.C. (1953) Mica deposits of the southeastern Piedmont, Part 11, Alabama district. Professional Paper 248g. US Geological Survey doi:10.3133/pp248g
 
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