| Locality type: | Mine |
| Classification |
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| Species: | Chalcopyrite |
| Formula: | CuFeS2 |
| Confirmation |
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| Validity: | Believed Valid |
| Associated Minerals Based on Photo Data: |
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| Tremolite | 1 |
| Pyrrhotite | 1 |
| Pyrite | 1 |
| Data |
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| Mineral Data: | Click here to view Chalcopyrite data |
| Locality Data: | Click here to view Number Twenty Copper Mine, Mineral Bluff, Fannin County, Georgia, USA |
| Photo Gallery | View Gallery (2 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 102185 |
| Long-form Identifier: | 1:3:102185:1 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Chalcopyrite |
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| 2.4km (1.5 miles) | ⓘPolk County Mine (Mary-Polk County ore body; Tennessee Copper Company; Old Polk County; Cities Service Company), Polk County, Tennessee, USA |
| 2.6km (1.6 miles) | ⓘCalloway Mine, Polk County, Tennessee, USA |
| 2.7km (1.7 miles) | ⓘMary Mine (Mary-Polk County Ore Body; Cities Service Company), Polk County, Tennessee, USA |
| 3.1km (1.9 miles) | ⓘCherokee Mine (School property; Old Tennessee Mine), Copperhill, Polk County, Tennessee, USA |
| 3.2km (2.0 miles) | ⓘSally Jane Prospect, Fannin County, Georgia, USA |
| 3.2km (2.0 miles) | ⓘSouth pit, Cherokee Open pit, Polk County, Tennessee, USA |
| 3.4km (2.1 miles) | ⓘLondon Mine (McPherson Mine; Tennessee Copper Company), Polk County, Tennessee, USA |
| 3.4km (2.1 miles) | ⓘNorth pit, Cherokee open pit, Polk County, Tennessee, USA |
| 4.3km (2.7 miles) | ⓘBoyd Mine (Culchote vein), Ducktown, Polk County, Tennessee, USA |
| 5.0km (3.1 miles) | ⓘMobile Copper Mine (Shaffer Mine), Fannin County, Georgia, USA |
| References |
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Number Twenty Copper Mine, Mineral Bluff, Fannin County, Georgia, USA