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Tourmaline from
Beecher No. 3, Beecher Lode, Custer, Custer Mining District, Custer County, South Dakota, USA


Classification
Species:'Tourmaline' (not an IMA approved species)
Formula:AD3G6(T6O18)(BO3)3X3Z
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Tourmaline data
Locality Data:Click here to view Beecher No. 3, Beecher Lode, Custer, Custer Mining District, Custer County, South Dakota, USA
Data Identifiers
Mindat Occurrence Record ID:801223
Long-form Identifier:1:3:801223:4
GUID (UUID V4):0
Nearest other occurrences of Tourmaline
1.4km (0.9 miles) ⓘE. L. Davis Mine (St. Louis Mine), Custer Mining District, Custer County, South Dakota, USA
1.6km (1.0 miles) ⓘTriangle A Lode (Triangle Mine), Custer Mining District, Custer County, South Dakota, USA
2.3km (1.4 miles) ⓘLee Burrow's Dike (Walch Mine), Custer Mining District, Custer County, South Dakota, USA
2.6km (1.6 miles) ⓘMitchell No. 1 Lode Occurrence, Custer Mining District, Custer County, South Dakota, USA
2.6km (1.6 miles) ⓘMitchell Lode Occurrence, Custer Mining District, Custer County, South Dakota, USA
2.8km (1.7 miles) ⓘHarry Lode Occurrence, Custer Mining District, Custer County, South Dakota, USA
3.0km (1.8 miles) ⓘBare Top No. 2 Lode Occurrence, Custer Mining District, Custer County, South Dakota, USA
3.0km (1.9 miles) ⓘLittle Spar Mine, Custer Mining District, Custer County, South Dakota, USA
3.1km (1.9 miles) ⓘEarl Lode, Custer Mining District, Custer County, South Dakota, USA
3.2km (2.0 miles) ⓘRives Lode, Custer Mining District, Custer County, South Dakota, USA
References
Redden, Jack Allison (1959) Beryl deposits of the Beecher No.3 Black Diamond pegmatite, Custer County, South Dakota. USGS Bulletin: 1072-
 
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