| Locality type: | Occurrence |
| Classification |
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| Species: | 'Hornblende Root Name Group' (not an IMA approved species) |
| Formula: | ◻Ca2(C42+C3+)(AlSi7O22)W2 |
| Confirmation |
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|
| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Hornblende Root Name Group data |
| Locality Data: | Click here to view Keystone Lode Occurrence, Custer Mining District, Custer County, South Dakota, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 382984 |
| Long-form Identifier: | 1:3:382984:4 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Hornblende Root Name Group |
|---|
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| 3.3km (2.0 miles) | ⓘHelen Beryl Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA |
| 28.4km (17.6 miles) | ⓘBismark-Ida Florence Groups, Keystone Gold Mining District, Pennington County, South Dakota, USA |
| 28.5km (17.7 miles) | ⓘEdison Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA |
| 28.6km (17.8 miles) | ⓘColumbia Mine (Maiden Mine), Keystone, Keystone Gold Mining District, Pennington County, South Dakota, USA |
| 29.0km (18.0 miles) | ⓘEgyptian Group, Keystone Gold Mining District, Pennington County, South Dakota, USA |
| 29.1km (18.1 miles) | ⓘNathaniel Pope, Keystone Gold Mining District, Pennington County, South Dakota, USA |
| 40.6km (25.3 miles) | ⓘGreen Granite quarry, McGees Station, Pennington County, South Dakota, USA |
| 71.3km (44.3 miles) | ⓘTwin Peaks, Lead Mining District, Lawrence County, South Dakota, USA |
| 75.9km (47.2 miles) | ⓘBear Town, Lawrence County, South Dakota, USA |
| References |
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