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Biotite from
Silver Dollar Mine, Custer Mining District, Custer 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 Silver Dollar Mine, Custer Mining District, Custer County, South Dakota, USA
Data Identifiers
Mindat Occurrence Record ID:383284
Long-form Identifier:1:3:383284:4
GUID (UUID V4):0
Nearest other occurrences of Biotite
0.6km (0.4 miles) ⓘWhite Bear Mine (Gamber Mine), Custer, Custer Mining District, Custer County, South Dakota, USA
1.2km (0.7 miles) ⓘBuster lode (Buster Dike Mica Mine), Custer, Custer Mining District, Custer County, South Dakota, USA
2.5km (1.5 miles) ⓘBurgess Mica Prospect, Custer Mining District, Custer County, South Dakota, USA
2.7km (1.7 miles) ⓘMarydale Prospect, Custer Mining District, Custer County, South Dakota, USA
2.9km (1.8 miles) ⓘLucky Star Prospect, Custer Mining District, Custer County, South Dakota, USA
3.0km (1.9 miles) ⓘRay Prospect (Ray Mica Prospect), Custer Mining District, Custer County, South Dakota, USA
4.4km (2.7 miles) ⓘTip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA
4.4km (2.7 miles) ⓘDorothy V Prospect (Van), Custer Mining District, Custer County, South Dakota, USA
6.2km (3.9 miles) ⓘBig Tom Mine (Kem Lode), Custer Mining District, Custer County, South Dakota, USA
6.3km (3.9 miles) ⓘOld Missouri Prospect, Custer Mining District, Custer County, South Dakota, USA
References
U.S. Geological Survey Professional Paper 297
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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