| Locality type: | Mine |
| Classification |
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| Species: | Beryl |
| Formula: | Be3Al2(Si6O18) |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Beryl data |
| Locality Data: | Click here to view Big Spar No. 1 mine, Custer, Custer Mining District, Custer County, South Dakota, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 382192 |
| Long-form Identifier: | 1:3:382192:3 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Beryl |
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| 1.0km (0.6 miles) | ⓘFriday Lode Occurrence, Custer Mining District, Custer County, South Dakota, USA |
| 1.3km (0.8 miles) | ⓘRaver and Michaud Mine, Custer Mining District, Custer County, South Dakota, USA |
| 1.6km (1.0 miles) | ⓘDorothy V Prospect (Van), Custer Mining District, Custer County, South Dakota, USA |
| 2.0km (1.3 miles) | ⓘRoss Mine, Berne, Custer Mining District, Custer County, South Dakota, USA |
| 2.3km (1.4 miles) | ⓘDorothy Lode, Custer Mining District, Custer County, South Dakota, USA |
| 2.9km (1.8 miles) | ⓘCrown Mine (McMackin Mine), Custer, Custer Mining District, Custer County, South Dakota, USA |
| 3.0km (1.8 miles) | ⓘBallard Mine, Custer Mining District, Custer County, South Dakota, USA |
| 3.1km (1.9 miles) | ⓘWhite Spar Mica Mine (Westinghouse No. 2 Mine), Custer, Custer Mining District, Custer County, South Dakota, USA |
| 4.0km (2.5 miles) | ⓘLucky Star Prospect, Custer Mining District, Custer County, South Dakota, USA |
| 4.5km (2.8 miles) | ⓘSunshine Mica Prospect, Custer Mining District, Custer County, South Dakota, USA |
| References |
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