Locality type: Pegmatite Classification Species: Schorl Formula: NaFe3 2+ Al6 (Si6 O18 )(BO3 )3 (OH)3 (OH) Comments: The quarry below the waterfall at the lower end of Great Hill Lake in Portland, downstream from the dam, was a source of excellent large crystals, with sharp faces (Schooner, 1961). Habit: prismatic with rhombohedral terminations Colour: black Quality for species: Good crystals or rich for species - important (!) Abundance at site: Common Confirmation Validity: Believed Valid Data Mineral Data: Click here to view Schorl data Locality Data: Click here to view Great Hill Pond Brook pegmatite, Cobalt, East Hampton, Middlesex County, Connecticut, USA Data Identifiers Mindat Occurrence Record ID: 863532 Long-form Identifier: 1:3:863532:7 GUID (UUID V4 ): 0 Nearest other occurrences of Schorl
0.8km (0.5 miles) ⓘ State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA 2.9km (1.8 miles) ⓘ Hale-Walker prospects, Collins Hill, Portland, Middlesex County, Connecticut, USA 3.0km (1.9 miles) ⓘ Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA 3.2km (2.0 miles) ⓘ State Forest Quarry No. 1, East Hampton, Middlesex County, Connecticut, USA 3.3km (2.0 miles) ⓘ Dimension stone quarries, Hog Hill, East Hampton, Middlesex County, Connecticut, USA 3.5km (2.2 miles) ⓘ Markham Mica Quarry, Hog Hill, East Hampton, Middlesex County, Connecticut, USA 3.6km (2.2 miles) ⓘ Dimension stone quarry, Collins Hill, Portland, Middlesex County, Connecticut, USA 3.6km (2.2 miles) ⓘ Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA 3.7km (2.3 miles) ⓘ Schoonmaker Mine, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA 3.7km (2.3 miles) ⓘ Pelton's Quarry, Portland, Middlesex County, Connecticut, USA References Search for references including Schorl Great Hill Pond Brook pegmatite, Cobalt, East Hampton, Middlesex County, Connecticut, USA
