| Locality type: | Town |
| Classification |
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| Species: | Sillimanite |
| Formula: | Al2(SiO4)O |
| Confirmation |
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| Validity: | Valid - Type Locality |
| Associated Minerals Based on Photo Data: |
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| Quartz | 3 |
| Magnetite | 1 |
| Rutile | 1 |
| Albite | 1 |
| Data |
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| Mineral Data: | Click here to view Sillimanite data |
| Locality Data: | Click here to view Chester, Middlesex County, Connecticut, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 10092 |
| Long-form Identifier: | 1:3:10092:0 |
| GUID (UUID V4): | 0 |
| Localities for Sillimanite in this Region |
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| Sillimanite type locality, Chester, Middlesex County, Connecticut, USA |
| Nearest other occurrences of Sillimanite |
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| 0.1km (0.1 miles) | ⓘSillimanite type locality, Chester, Middlesex County, Connecticut, USA |
| 7.5km (4.7 miles) | ⓘState Route 9 rock cuts, Haddam, Middlesex County, Connecticut, USA |
| 8.9km (5.6 miles) | ⓘArnold Granite Quarry (General Brainerd Quarry; Great Hill Quarry; Hazelton Quarry; Haddam Quarry; Brookes Quarry), Haddam, Middlesex County, Connecticut, USA |
| 9.2km (5.7 miles) | ⓘAlmandine schorl and sillimanite locality, Haddam, Middlesex County, Connecticut, USA |
| 9.6km (6.0 miles) | ⓘConnecticut Yankee atomic power plant, Haddam Neck, Haddam, Middlesex County, Connecticut, USA |
| 10.7km (6.6 miles) | ⓘChrysoberyl locality, Haddam, Middlesex County, Connecticut, USA |
| 11.1km (6.9 miles) | ⓘGillette Quarry (J-J Mine; Haddam Neck Quarry), Haddam Neck, Haddam, Middlesex County, Connecticut, USA |
| 13.9km (8.6 miles) | ⓘAnderson No. 1 Mica Mine, East Hampton, Middlesex County, Connecticut, USA |
| 16.7km (10.4 miles) | ⓘWestchester, Colchester, New London County, Connecticut, USA |
| 19.4km (12.1 miles) | ⓘLinkpot cut, Airline Railroad, East Hampton, Middlesex County, Connecticut, USA |
| References |
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Sillimanite type locality, Chester, Middlesex County, Connecticut, USA