Locality type: Quarry Classification Species: Heulandite-Ca Formula: (Ca,Na)5 (Si27 Al9 )O72 · 26H2 O Formation: Secondary Comments: Confirmed in 2018 via SEM-EDS analyses. Late forming crystals to 2 cm perched on quartz or prehnite with other zeolites and fluoapophyllite-K. Habit: coffin-shaped prisms Colour: white to almond, colorless Quality for species: Good crystals or rich for species - important (!) Abundance at site: Common Confirmation Validity: Confirmed Confirmation Methods: SEM-EDS Associated Minerals Based on Photo Data: Quartz 20 - var Chalcedony 5 - var Amethyst 1 Anhydrite 13 Calcite 11 Chabazite-Ca 8 Pumpellyite Group 5 Stilbite-Ca 3 Laumontite 3 Stilbite Subgroup 2 Prehnite 2 Pyrite 2 Data Mineral Data: Click here to view Heulandite-Ca data Locality Data: Click here to view O & G Southbury Quarry (Silliman Quarry; O & G No. 2 Quarry), Orenaug Hills, Woodbury, Litchfield County, Connecticut, USA Photo Gallery View Gallery (6 photos) Data Identifiers Mindat Occurrence Record ID: 1286664 Long-form Identifier: 1:3:1286664:9 GUID (UUID V4 ): 0 Nearest other occurrences of Heulandite-Ca
3.6km (2.2 miles) ⓘ O & G Woodbury Traprock Quarry (Orenaug Quarry; O & G No. 1 Quarry), Orenaug Hills, Woodbury, Litchfield County, Connecticut, USA 12.4km (7.7 miles) ⓘ Interstate 84 road cuts (Route 6A bypass), Newtown, Fairfield County, Connecticut, USA 13.5km (8.4 miles) ⓘ State Route 67 construction site, Oxford, New Haven County, Connecticut, USA 14.1km (8.8 miles) ⓘ Route 73 quarry, Waterbury, New Haven County, Connecticut, USA 15.4km (9.6 miles) ⓘ Sky Ridge railroad cut, Hawleyville, Newtown, Fairfield County, Connecticut, USA 16.5km (10.2 miles) ⓘ U. S. Route 7 Expressway (Danbury line to Iron Works District), Brookfield, Fairfield County, Connecticut, USA 16.7km (10.4 miles) ⓘ Blue Stone Quarry, Waterbury, New Haven County, Connecticut, USA 23.8km (14.8 miles) ⓘ Thomaston Dam railroad cut, Thomaston Dam, Thomaston, Litchfield County, Connecticut, USA 24.8km (15.4 miles) ⓘ Old Mine Plaza construction site, Long Hill, Trumbull, Fairfield County, Connecticut, USA 30.8km (19.2 miles) ⓘ South Main Street construction site, Torrington, Litchfield County, Connecticut, USA References Search for references including Heulandite-Ca O & G Southbury Quarry (Silliman Quarry; O & G No. 2 Quarry), Orenaug Hills, Woodbury, Litchfield County, Connecticut, USA
O & G Southbury Quarry, Orenaug Hills, Woodbury, Litchfield County, Connecticut, USA