| Locality type: | Mine |
| Classification |
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| Species: | Opal |
| Formula: | SiO2 · nH2O |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Opal data |
| Locality Data: | Click here to view November Mine, The Needles, Custer State Park, Custer County, South Dakota, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 211432 |
| Long-form Identifier: | 1:3:211432:3 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Opal |
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| 10.7km (6.7 miles) | ⓘEtta Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA |
| 11.2km (7.0 miles) | ⓘPeerless Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA |
| 12.9km (8.0 miles) | ⓘKing Lithia Mine, Greyhound Gulch, Keystone, Keystone Mining District, Pennington County, South Dakota, USA |
| 14.5km (9.0 miles) | ⓘBarker-Ferguson Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA |
| 14.7km (9.1 miles) | ⓘWood Tin mine, Harney City, Pennington County, South Dakota, USA |
| 18.8km (11.7 miles) | ⓘHelen Beryl Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA |
| 61.4km (38.1 miles) | ⓘDavier Mine, Annie Creek, Bald Mountain Mining District (Portland Mining District), Lawrence County, South Dakota, USA |
| 61.7km (38.3 miles) | ⓘWharf Mine, Bald Mountain Mining District (Portland Mining District), Lawrence County, South Dakota, USA |
| References |
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