| Locality type: | Mine |
| 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 Tillison's Mine, Custer Mining District, Custer County, South Dakota, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 383363 |
| Long-form Identifier: | 1:3:383363:6 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Tourmaline |
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| 1.3km (0.8 miles) | ⓘI X L Lode No. 4 Prospect, Custer Mining District, Custer County, South Dakota, USA |
| 1.4km (0.9 miles) | ⓘArcade Nos. 1 and 2 Lodes, Custer Mining District, Custer County, South Dakota, USA |
| 1.7km (1.1 miles) | ⓘEarl Lode, Custer Mining District, Custer County, South Dakota, USA |
| 2.4km (1.5 miles) | ⓘLee Burrow's Dike (Walch Mine), Custer Mining District, Custer County, South Dakota, USA |
| 2.8km (1.7 miles) | ⓘBare Top No. 2 Lode Occurrence, Custer Mining District, Custer County, South Dakota, USA |
| 2.8km (1.8 miles) | ⓘTriangle A Lode (Triangle Mine), Custer Mining District, Custer County, South Dakota, USA |
| 2.9km (1.8 miles) | ⓘMitchell No. 1 Lode Occurrence, Custer Mining District, Custer County, South Dakota, USA |
| 3.2km (2.0 miles) | ⓘHofert Arcade (Victory No. 1 Prospect), Custer Mining District, Custer County, South Dakota, USA |
| 3.2km (2.0 miles) | ⓘE. L. Davis Mine (St. Louis Mine), Custer Mining District, Custer County, South Dakota, USA |
| 3.7km (2.3 miles) | ⓘSno No. 2 Lode Occurrence, Custer Mining District, Custer County, South Dakota, USA |
| References |
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