| Locality type: | Mine |
| Classification |
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| Species: | Spodumene |
| Formula: | LiAlSi2O6 |
| Comments: | Occurs in pegmatite. |
| Confirmation |
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| Validity: | Believed Valid |
| Associated Minerals Based on Photo Data: |
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| Quartz | 1 |
| Data |
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| Mineral Data: | Click here to view Spodumene data |
| Locality Data: | Click here to view Helen Beryl Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA |
| Photo Gallery | View Gallery (6 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 68280 |
| Long-form Identifier: | 1:3:68280:4 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Spodumene |
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| 1.4km (0.9 miles) | ⓘNew York Mine (Westinghouse No. 1 Mine), Custer, Custer Mining District, Custer County, South Dakota, USA |
| 3.7km (2.3 miles) | ⓘWarren Draw Mine (Warren Gulch Mine), Custer Mining District, Custer County, South Dakota, USA |
| 4.2km (2.6 miles) | ⓘHighview Prospect, Custer Mining District, Custer County, South Dakota, USA |
| 4.2km (2.6 miles) | ⓘTin Mountain Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA |
| 4.9km (3.0 miles) | ⓘInca Mine, Custer Mining District, Custer County, South Dakota, USA |
| 9.1km (5.7 miles) | ⓘSoda Spar Pegmatite, Glendale, Keystone Mining District, Pennington County, South Dakota, USA |
| 9.7km (6.0 miles) | ⓘBlack Diamond Mine, Custer Mining District, Custer County, South Dakota, USA |
| 9.8km (6.1 miles) | ⓘBeecher No. 2 (Longview Mine), Beecher Lode, Custer, Custer Mining District, Custer County, South Dakota, USA |
| 9.8km (6.1 miles) | ⓘDike No. 2 Mine, Custer Mining District, Custer County, South Dakota, USA |
| 10.3km (6.4 miles) | ⓘBeecher Lode Bond Claim (Beecher No. 1; Bond Lode), Beecher Lode, Custer, Custer Mining District, Custer County, South Dakota, USA |
| References |
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Meeves, H.; Harrer, C.M.; Salsbury, M.H.; Konselman, A.S; Shannon, S.S. Jnr. (1966) Reconnaissance of beryllium-bearing pegmatite deposits in six western states: Arizona, Colorado, New Mexico, South Dakota, Utah, and Wyoming. Bureau of Mines Information Circular 8298. United States Department of the Interior 34 pp.p.32 - (Table A-1) |
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Helen Beryl Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA