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Biotite from
McKirahan Mica Prospect, Pringle, 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 McKirahan Mica Prospect, Pringle, Custer Mining District, Custer County, South Dakota, USA
Data Identifiers
Mindat Occurrence Record ID:383096
Long-form Identifier:1:3:383096:3
GUID (UUID V4):0
Nearest other occurrences of Biotite
6.3km (3.9 miles) ⓘGreene pegmatite (Red Monster Mine; Pink Monster Mine), Pringle, Custer Mining District, Custer County, South Dakota, USA
10.2km (6.3 miles) ⓘWhite Elephant Mine, Cicero Peak, Pringle, Custer Mining District, Custer County, South Dakota, USA
12.5km (7.7 miles) ⓘKaliko No. 1 Mine, Pringle, Custer Mining District, Custer County, South Dakota, USA
12.5km (7.7 miles) ⓘMountain Beryl Claim, Pringle, Custer Mining District, Custer County, South Dakota, USA
12.9km (8.0 miles) ⓘElkhorn Mine (Tinsley Mine), Custer, Custer Mining District, Custer County, South Dakota, USA
13.6km (8.4 miles) ⓘMica King Mine (Lost Bonanza; Cook Mine), Custer Mining District, Custer County, South Dakota, USA
14.0km (8.7 miles) ⓘMarydale Prospect, Custer Mining District, Custer County, South Dakota, USA
15.2km (9.4 miles) ⓘOld Missouri Prospect, Custer Mining District, Custer County, South Dakota, USA
15.5km (9.6 miles) ⓘRay Prospect (Ray Mica Prospect), Custer Mining District, Custer County, South Dakota, USA
15.7km (9.8 miles) ⓘSilver Dollar Mine, Custer Mining District, Custer County, South Dakota, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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