| Locality type: | Mine |
| Classification |
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| Type: | Pegmatite |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Pegmatite data |
| Locality Data: | Click here to view Helen Beryl Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1629520 |
| Long-form Identifier: | 1:3:1629520:1 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Pegmatite |
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| 1.1km (0.7 miles) | ⓘWhite Mica Lode and White Mica No. 1 Lode Mine, Custer Mining District, Custer County, South Dakota, USA |
| 1.8km (1.1 miles) | ⓘCorky Claim, Unorganized mining district [1], Custer County, South Dakota, USA |
| 2.2km (1.4 miles) | ⓘTom Carroll Claim, Custer Mining District, Custer County, South Dakota, USA |
| 2.5km (1.6 miles) | ⓘLincoln Lode Prospect, Custer Mining District, Custer County, South Dakota, USA |
| 3.1km (1.9 miles) | ⓘRed Spar Mine, Unorganized mining district [1], Custer County, South Dakota, USA |
| 3.1km (1.9 miles) | ⓘLincoln No. 7 Lode Prospect, Custer Mining District, Custer County, South Dakota, USA |
| 3.2km (2.0 miles) | ⓘMichaud Prospect, Unorganized mining district [1], Custer County, South Dakota, USA |
| 3.2km (2.0 miles) | ⓘDubuque and Royal Flush Claims (Gayle Lode), Custer Mining District, Custer County, South Dakota, USA |
| 3.3km (2.0 miles) | ⓘKeystone Lode Occurrence, 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 |
| References |
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