| Locality type: | Property |
| Classification |
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| Type: | Slate |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Slate data |
| Locality Data: | Click here to view Black Crystal Property (Giras Claim; Gireau's Claim; P J McGowans Lode), Hill City Mining District, Pennington County, South Dakota, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1048408 |
| Long-form Identifier: | 1:3:1048408:9 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Slate |
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| 4.6km (2.8 miles) | ⓘEl Dorado (Gold Dust; Midway Fraction), Hill City Mining District, Pennington County, South Dakota, USA |
| 6.4km (4.0 miles) | ⓘGreenback Group, Hill City Mining District, Pennington County, South Dakota, USA |
| 6.7km (4.2 miles) | ⓘBuckeye & Lena Group (Union Hill Group; Gopher Group), Hill City Mining District, Pennington County, South Dakota, USA |
| 8.1km (5.1 miles) | ⓘOmega Group, Unorganized mining district [5], Pennington County, South Dakota, USA |
| 10.4km (6.5 miles) | ⓘBarnes Group (Black Tom Group), Unorganized mining district [5], Pennington County, South Dakota, USA |
| 10.5km (6.5 miles) | ⓘEgyptian Group, Keystone Gold Mining District, Pennington County, South Dakota, USA |
| 10.6km (6.6 miles) | ⓘNathaniel Pope, Keystone Gold Mining District, Pennington County, South Dakota, USA |
| 13.5km (8.4 miles) | ⓘMariposa Mine (Mary Posey; Third Time Lode; Slate Creek Lode; Merry Posey; Blair Claim), Mystic Mining District, Pennington County, South Dakota, USA |
| 20.3km (12.6 miles) | ⓘEldorado Custer County (Old Bill Group), Unorganized mining district [1], Custer County, South Dakota, USA |
| 20.6km (12.8 miles) | ⓘWild Rose Mine (Wild Rose Gold Mine; Grant Mine; Wild Rose Group), Unorganized mining district [1], Custer County, South Dakota, USA |
| References |
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