| Locality type: | Dam |
| Classification |
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| Species: | 'Hornblende Root Name Group' (not an IMA approved species) |
| Formula: | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Confirmation |
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| Validity: | Believed Valid |
| Associated Minerals Based on Photo Data: |
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| Titanite | ⓘ1 photo of Hornblende Root Name Group associated with Titanite at this locality. |
| Quartz | ⓘ1 photo of Hornblende Root Name Group associated with Quartz at this locality. |
| Data |
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| Mineral Data: | Click here to view Hornblende Root Name Group data |
| Locality Data: | Click here to view Mansfield Hollow Dam, Windham, Windham County, Connecticut, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1016551 |
| Long-form Identifier: | 1:3:1016551:9 |
| GUID (UUID V4): | 1f9d832e-244f-4719-a46b-1103fa2cdece |
| Nearest other occurrences of Hornblende Root Name Group |
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| 8.4km (5.2 miles) | ⓘUS Route 6 Willimantic Bypass expressway road cuts, Coventry, Tolland County, Connecticut, USA |
| 34.5km (21.4 miles) | ⓘSturbridge Graphite Mine (Tantiusques Mine; Winthrop Lead Mine), Sturbridge, Worcester County, Massachusetts, USA |
| 36.4km (22.6 miles) | ⓘCase Quarries, Portland, Middlesex County, Connecticut, USA |
| 36.6km (22.7 miles) | ⓘGreat Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA |
| 37.3km (23.2 miles) | ⓘPelton's Quarry, Portland, Middlesex County, Connecticut, USA |
| 37.9km (23.6 miles) | ⓘWalden Gem Quarry, Portland, Middlesex County, Connecticut, USA |
| 38.2km (23.8 miles) | ⓘWorth and Selden Quarries (Victoria Quarry), East Hampton (Chatham), Middlesex County, Connecticut, USA |
| 38.9km (24.2 miles) | ⓘHale-Walker prospects, Collins Hill, Portland, Middlesex County, Connecticut, USA |
| 44.3km (27.5 miles) | ⓘState Route 9 rock cuts, Haddam, Middlesex County, Connecticut, USA |
| 58.8km (36.6 miles) | ⓘCentredale, North Providence, Providence County, Rhode Island, USA |
| References |
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