| Locality type: | Quarry |
| 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: | As microcrystals in the usual coffin shape, translucent with numerous inclusions. |
| Habit: | coffin-shaped |
| Colour: | brown |
| Quality for species: | Poor for species, only of interest for locality collectors. (#) |
| Abundance at site: | Rare |
| Confirmation |
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| Validity: | Confirmed |
| Confirmation Methods: | Visually Identified |
| Associated Minerals Based on Photo Data: |
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| Analcime | ⓘ1 photo of Heulandite Subgroup associated with Analcime at this locality. |
| Data |
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| Mineral Data: | Click here to view Heulandite Subgroup data |
| Locality Data: | Click here to view Cheshire Traprock Quarry, Cheshire, New Haven County, Connecticut, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1106211 |
| Long-form Identifier: | 1:3:1106211:2 |
| GUID (UUID V4): | 584d23bc-aa0d-44b2-9142-75134cb50914 |
| Nearest other occurrences of Heulandite Subgroup |
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|
| 8.9km (5.5 miles) | ⓘHubbard Park Quartz locality, Meriden, New Haven County, Connecticut, USA |
| 13.7km (8.5 miles) | ⓘBlue Stone Quarry, Waterbury, New Haven County, Connecticut, USA |
| 14.4km (8.9 miles) | ⓘUnnamed quarry, Waterbury, New Haven County, Connecticut, USA |
| 15.1km (9.4 miles) | ⓘState Route 8 exit 37, Watertown, Litchfield County, Connecticut, USA |
| 19.1km (11.8 miles) | ⓘWaterbury Road quarry, Thomaston, Litchfield County, Connecticut, USA |
| 19.9km (12.4 miles) | ⓘReynolds Bridge, Thomaston, Litchfield County, Connecticut, USA |
| 20.0km (12.4 miles) | ⓘPine Rock Quarry (Farnham Quarry), Hamden, New Haven County, Connecticut, USA |
| 20.1km (12.5 miles) | ⓘState Route 9 - Ellis Street and State Route 72 interchanges (State Route 72 roadcut), New Britain, Hartford County, Connecticut, USA |
| 21.5km (13.4 miles) | ⓘThomaston, Litchfield County, Connecticut, USA |
| 22.8km (14.2 miles) | ⓘNonnewaug River Industrial Park, Woodbury, Litchfield County, Connecticut, USA |
| References |
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Cheshire Traprock Quarry, Cheshire, New Haven County, Connecticut, USA