Vote for your favorite mineral in #MinCup26! - Arsenuranylite vs. Talc
It's a pair of soft and lovely minerals as Stichtite and Talc compete for your votes.
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Biotite from
Albian Basin, Alta, Little Cottonwood Mining District, Salt Lake County, Utah, USA


Locality type:Outcrop
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 Albian Basin, Alta, Little Cottonwood Mining District, Salt Lake County, Utah, USA
Data Identifiers
Mindat Occurrence Record ID:1576977
Long-form Identifier:1:3:1576977:2
GUID (UUID V4):0
Nearest other occurrences of Biotite
17.5km (10.9 miles) ⓘPark Premier Shaft, Elkhorn Mining District, Wasatch County, Utah, USA
41.8km (26.0 miles) ⓘMascotte Tunnel Occurrence, Bingham Mining District, Salt Lake County, Utah, USA
41.9km (26.0 miles) ⓘBingham Tunnel No. 2 Occurrence, Bingham Mining District, Salt Lake County, Utah, USA
41.9km (26.0 miles) ⓘArthur Fork Prospect, Hardscrabble Mining District, Morgan County, Utah, USA
43.3km (26.9 miles) ⓘCastro Gulch Mine, Bingham Mining District, Salt Lake County, Utah, USA
46.2km (28.7 miles) ⓘBingham Canyon Mine, Bingham Canyon, Bingham Mining District, Salt Lake County, Utah, USA
47.4km (29.4 miles) ⓘButterfield Canyon, Bingham Mining District, Salt Lake County, Utah, USA
49.1km (30.5 miles) ⓘArgentine Shaft Occurrence (Argentine Tunnel), Bingham Mining District, Salt Lake County, Utah, USA
49.7km (30.9 miles) ⓘCarr Fork Mine, Bingham Mining District, Tooele County, Utah, USA
50.0km (31.0 miles) ⓘStar Mine, Bingham Mining District, Tooele County, Utah, USA
References
Woodford, D. T., Sisson, V. B., & Leeman, W. P. (2001). Boron metasomatism of the Alta stock contact aureole, Utah: Evidence from borates, mineral chemistry, and geochemistry. American Mineralogist, 86(4), 513-533.
 
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