| Locality type: | Mine |
| Classification |
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| Species: | 'Columbite-Tantalite' (not an IMA approved species) |
| Comments: | Occurs in a lithia pegmatite. |
| Quality for species: | Excellent - world class for species or very significant. (!!) |
| Confirmation |
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| Validity: | Believed Valid |
| Associated Minerals Based on Photo Data: |
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| Albite | 11 |
| - var Cleavelandite | 3 |
| Muscovite | 7 |
| Quartz | 4 |
| Beryl | 3 |
| Microcline | 1 |
| Data |
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| Mineral Data: | Click here to view Columbite-Tantalite data |
| Locality Data: | Click here to view Etta Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA |
| Photo Gallery | View Gallery (13 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 64567 |
| Long-form Identifier: | 1:3:64567:2 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Columbite-Tantalite |
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| 1.1km (0.7 miles) | ⓘWhite Cap Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA |
| 1.1km (0.7 miles) | ⓘPeerless Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA |
| 1.2km (0.7 miles) | ⓘHugo Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA |
| 1.2km (0.7 miles) | ⓘDan Patch West Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA |
| 2.7km (1.6 miles) | ⓘSitting Bull pegmatite, Keystone, Keystone Mining District, Pennington County, South Dakota, USA |
| 3.2km (2.0 miles) | ⓘKing Lithia Mine, Greyhound Gulch, Keystone, Keystone Mining District, Pennington County, South Dakota, USA |
| 4.6km (2.9 miles) | ⓘWood Tin mine, Harney City, Pennington County, South Dakota, USA |
| 5.7km (3.5 miles) | ⓘStar Lode, Keystone Mining District, Pennington County, South Dakota, USA |
| 6.3km (3.9 miles) | ⓘTiger mine, Hayward, Pennington County, South Dakota, USA |
| 15.1km (9.4 miles) | ⓘFirst Find Claim, Hill City Mining District, Pennington County, South Dakota, USA |
| References |
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Etta Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA