Locality type: | Road Cutting |
Classification |
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Species: | 'Heulandite Subgroup' (not an IMA approved species) |
Formula: | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
Formation: | Secondary |
Comments: | micro drusy crystals with epidote and zeolites in fractures in gneiss |
Colour: | colorless to white |
Confirmation |
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Validity: | Believed Valid |
Associated Minerals Based on Photo Data: |
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Epidote | ⓘ2 photos of Heulandite Subgroup associated with Epidote at this locality. |
Quartz | ⓘ1 photo of Heulandite Subgroup associated with Quartz at this locality. |
Data |
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Mineral Data: | Click here to view Heulandite Subgroup data |
Locality Data: | Click here to view US Route 6 Willimantic Bypass expressway road cuts, Coventry, Tolland County, Connecticut, USA |
Data Identifiers |
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Mindat Occurrence Record ID: | 740955 |
Long-form Identifier: | 1:3:740955:4 |
GUID (UUID V4): | cf3abc86-bab3-487c-b1fe-1f44251b005c |
Nearest other occurrences of Heulandite Subgroup |
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32.9km (20.5 miles) | ⓘConnecticut Yankee atomic power plant, Haddam Neck, Haddam, Middlesex County, Connecticut, USA |
35.6km (22.1 miles) | ⓘHadlyme, Lyme, New London County, Connecticut, USA |
42.3km (26.3 miles) | ⓘState Route 9 - Ellis Street and State Route 72 interchanges (State Route 72 roadcut), New Britain, Hartford County, Connecticut, USA |
50.3km (31.2 miles) | ⓘHubbard Park Quartz locality, Meriden, New Haven County, Connecticut, USA |
59.2km (36.8 miles) | ⓘCheshire Traprock Quarry, Cheshire, New Haven County, Connecticut, USA |
66.3km (41.2 miles) | ⓘBlue Stone Quarry, Waterbury, New Haven County, Connecticut, USA |
66.4km (41.2 miles) | ⓘThomaston Dam railroad cut, Thomaston Dam, Thomaston, Litchfield County, Connecticut, USA |
67.0km (41.6 miles) | ⓘThomaston, Litchfield County, Connecticut, USA |
67.1km (41.7 miles) | ⓘBranford, New Haven County, Connecticut, USA |
67.6km (42.0 miles) | ⓘState Route 8 exit 37, Watertown, Litchfield County, Connecticut, USA |
References |
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US Route 6 Willimantic Bypass expressway road cuts, Coventry, Tolland County, Connecticut, USA