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Biotite from
Lucky Star Prospect, Custer Mining District, Custer County, South Dakota, 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 Lucky Star Prospect, Custer Mining District, Custer County, South Dakota, USA
Data Identifiers
Mindat Occurrence Record ID:383051
Long-form Identifier:1:3:383051:2
GUID (UUID V4):0
Nearest other occurrences of Biotite
1.3km (0.8 miles) ⓘBurgess Mica Prospect, Custer Mining District, Custer County, South Dakota, USA
1.7km (1.1 miles) ⓘBuster lode (Buster Dike Mica Mine), Custer, Custer Mining District, Custer County, South Dakota, USA
2.3km (1.5 miles) ⓘWhite Bear Mine (Gamber Mine), Custer, Custer Mining District, Custer County, South Dakota, USA
2.5km (1.6 miles) ⓘDorothy V Prospect (Van), Custer Mining District, Custer County, South Dakota, USA
2.9km (1.8 miles) ⓘSilver Dollar Mine, Custer Mining District, Custer County, South Dakota, USA
3.8km (2.4 miles) ⓘSurprise Mica Mine, Custer Mining District, Custer County, South Dakota, USA
4.1km (2.6 miles) ⓘKnowles lode claim, Custer, Custer Mining District, Custer County, South Dakota, USA
4.2km (2.6 miles) ⓘSunshine Mica Prospect, Custer Mining District, Custer County, South Dakota, USA
4.7km (2.9 miles) ⓘBig Horn Lode Prospect, Custer Mining District, Custer County, South Dakota, USA
5.6km (3.5 miles) ⓘMarydale Prospect, Custer Mining District, Custer County, South Dakota, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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