| Classification |
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| Species: | Sillimanite |
| Formula: | Al2(SiO4)O |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Sillimanite data |
| Locality Data: | Click here to view Lucky Strike (Woods Mine), Pringle, Custer Mining District, Custer County, South Dakota, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 385888 |
| Long-form Identifier: | 1:3:385888:2 |
| GUID (UUID V4): | e8ff29b0-e406-4a95-b3d5-d3dd63c4b649 |
| Nearest other occurrences of Sillimanite |
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| 11.6km (7.2 miles) | ⓘRuby Reef Claims (Ruby Reef; Ruby Reef No. 1), Custer Mining District, Custer County, South Dakota, USA |
| 15.0km (9.3 miles) | ⓘSilver Dollar Mine, Custer Mining District, Custer County, South Dakota, USA |
| 16.1km (10.0 miles) | ⓘBuster lode (Buster Dike Mica Mine), Custer, Custer Mining District, Custer County, South Dakota, USA |
| 16.2km (10.1 miles) | ⓘRed Spar Mine, Unorganized mining district [1], Custer County, South Dakota, USA |
| 16.4km (10.2 miles) | ⓘHelen Beryl Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA |
| 17.3km (10.8 miles) | ⓘBeecher No. 3, Beecher Lode, Custer, Custer Mining District, Custer County, South Dakota, USA |
| 18.2km (11.3 miles) | ⓘHot Shot mine, Custer, Custer Mining District, Custer County, South Dakota, USA |
| 18.3km (11.3 miles) | ⓘElkhorn Mine (Tinsley Mine), Custer, Custer Mining District, Custer County, South Dakota, USA |
| 18.4km (11.4 miles) | ⓘCuster Mountain lode (Snookum mine), Custer, Custer Mining District, Custer County, South Dakota, USA |
| 18.7km (11.6 miles) | ⓘMica King Mine (Lost Bonanza; Cook Mine), Custer Mining District, Custer County, South Dakota, USA |
| References |
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| Reference Search (possible matching items) |
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 | | Report (issue) | | Pegmatite Investigations 1942-1945 Black Hills, South Dakota By LINCOLN R. PAGE and OTHERS GEOLOGICAL SURVEY..._______________________ Mining, preparation, and uses of mica. _____________ Mining.___________________________________...mines and prospects___________________ 60 Addie tin mine._________________________________ 60 Ajax claim...___________60 Aladin mica mine by J. W. Adams____________ 60 Ann mica mine by T. A. Steven_________________...Steven_________________ 61 Antler mica mine.._-___--__--__-___-_-_-___-___ 64 Apex claim.___-__________-_-----_---_--_-____64 |
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