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Sillimanite from
Elkhorn Mine (Tinsley Mine), Custer, Custer Mining District, Custer County, South Dakota, USA


Locality type:Mine
Classification
Species:Sillimanite
Formula:Al2(SiO4)O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Sillimanite data
Locality Data:Click here to view Elkhorn Mine (Tinsley Mine), Custer, Custer Mining District, Custer County, South Dakota, USA
Data Identifiers
Mindat Occurrence Record ID:211335
Long-form Identifier:1:3:211335:7
GUID (UUID V4):0
Nearest other occurrences of Sillimanite
0.3km (0.2 miles) ⓘHot Shot mine, Custer, Custer Mining District, Custer County, South Dakota, USA
0.7km (0.4 miles) ⓘMica King Mine (Lost Bonanza; Cook Mine), Custer Mining District, Custer County, South Dakota, USA
1.4km (0.9 miles) ⓘSouthern Black Hills Kyanite Mine, Southern Black Hills, Custer County, South Dakota, USA
2.0km (1.3 miles) ⓘBeecher No. 3, Beecher Lode, Custer, Custer Mining District, Custer County, South Dakota, USA
4.1km (2.5 miles) ⓘCuster Mountain lode (Snookum mine), Custer, Custer Mining District, Custer County, South Dakota, USA
5.3km (3.3 miles) ⓘHofert Arcade (Victory No. 1 Prospect), Custer Mining District, Custer County, South Dakota, USA
5.8km (3.6 miles) ⓘVictory Mine, Custer, Custer Mining District, Custer County, South Dakota, USA
8.2km (5.1 miles) ⓘBuster lode (Buster Dike Mica Mine), Custer, Custer Mining District, Custer County, South Dakota, USA
8.4km (5.2 miles) ⓘSilver Dollar Mine, Custer Mining District, Custer County, South Dakota, USA
9.5km (5.9 miles) ⓘRuby Reef Claims (Ruby Reef; Ruby Reef No. 1), Custer Mining District, Custer County, South Dakota, USA
References
Staatz, M. H.
Norton, J. J.
Page, Lincoln R., Stocking, Hobart E., Smith, Harriet B. (1956) Contributions to the geology of uranium and thorium by the United States Geological Survey and Atomic Energy Commission for the United Nations International Conference on Peaceful Uses of Atomic Energy, Geneva, Switzerland, 1955. Professional Paper 300. US Geological Survey doi:10.3133/pp300
Wilmarth, V. R. (1963) Exploration for beryllium at the Helen Beryl, Elkhorn, and Tin Mountain pegmatites, Custer County, South Dakota. USGS Prof. Paper 297C.
Smith, Arthur E., Fritzsch, Eric (2000) SOUTH DAKOTA. Rocks & Minerals, 75 (3) 156-169 doi:10.1080/00357520009605635
 
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