| Locality type: | Prospect |
| Classification |
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| Species: | 'Tourmaline' (not an IMA approved species) |
| Formula: | AD3G6(T6O18)(BO3)3X3Z |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Tourmaline data |
| Locality Data: | Click here to view Ray Prospect (Ray Mica Prospect), Custer Mining District, Custer County, South Dakota, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 383235 |
| Long-form Identifier: | 1:3:383235:6 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Tourmaline |
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| 0.1km (0.1 miles) | ⓘShort Lode Occurrence, Custer Mining District, Custer County, South Dakota, USA |
| 0.5km (0.3 miles) | ⓘRed Bird pegmatite (McLaren Mine), Custer, Custer Mining District, Custer County, South Dakota, USA |
| 0.8km (0.5 miles) | ⓘMcArthur Mine (Firestone Mine), Custer Mining District, Custer County, South Dakota, USA |
| 1.4km (0.8 miles) | ⓘRoadside Mine, Custer Mining District, Custer County, South Dakota, USA |
| 1.6km (1.0 miles) | ⓘAlbert Lee Lode Occurrence, Custer Mining District, Custer County, South Dakota, USA |
| 1.7km (1.0 miles) | ⓘMarydale Prospect, Custer Mining District, Custer County, South Dakota, USA |
| 2.0km (1.3 miles) | ⓘLincoln No. 1 Lode Occurrence, Custer Mining District, Custer County, South Dakota, USA |
| 2.1km (1.3 miles) | ⓘRuby Reef Claims (Ruby Reef; Ruby Reef No. 1), Custer Mining District, Custer County, South Dakota, USA |
| 2.1km (1.3 miles) | ⓘChipmunk No. 25 Claim (Dilley's Chipmunk), Custer Mining District, Custer County, South Dakota, USA |
| 2.1km (1.3 miles) | ⓘHelen Group (Helen Lode; Helen No. 5; Helen No. 1; Helen No. 2; Helen No. 3; Helen No. 4), Custer Mining District, Custer County, South Dakota, USA |
| References |
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