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Biotite from
Peerless Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, 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 Peerless Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
Data Identifiers
Mindat Occurrence Record ID:212436
Long-form Identifier:1:3:212436:0
GUID (UUID V4):0
Nearest other occurrences of Biotite
1.1km (0.7 miles) ⓘEtta Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
1.2km (0.8 miles) ⓘMonte Carlo Prospect, Keystone Mining District, Pennington County, South Dakota, USA
1.4km (0.8 miles) ⓘEdison Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
1.8km (1.1 miles) ⓘEgyptian Group, Keystone Gold Mining District, Pennington County, South Dakota, USA
1.8km (1.1 miles) ⓘDan Patch Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
4.9km (3.0 miles) ⓘNew England Prospect, Unorganized mining district [5], Pennington County, South Dakota, USA
6.5km (4.1 miles) ⓘJumbo Lode Occurrence, Unorganized mining district [1], Custer County, South Dakota, USA
6.6km (4.1 miles) ⓘJosie Lode Mine, Unorganized mining district [1], Custer County, South Dakota, USA
9.4km (5.9 miles) ⓘBlack Elk Peak (Harney Peak), Pennington County, South Dakota, USA
9.6km (6.0 miles) ⓘGold Medal Group (Golden Summit Group), Hill City Mining District, Pennington County, South Dakota, USA
References
USGS Prof Paper 297A
Smith, Arthur E., Fritzsch, Eric (2000) SOUTH DAKOTA. Rocks & Minerals, 75 (3) 156-169 doi:10.1080/00357520009605635
 
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