Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Schorl from
Schorl locality, Wilton, Fairfield County, Connecticut, USA


Classification
Species:Schorl
Formula:NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Comments:Hiller (1967) says they are about 1 inch long and "extremely well formed", but hard to find and remove from the feldspar.
Colour:black
Quality for species:Good crystals or rich for species - important (!)
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Data
Mineral Data:Click here to view Schorl data
Locality Data:Click here to view Schorl locality, Wilton, Fairfield County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:850609
Long-form Identifier:1:3:850609:2
GUID (UUID V4):0
Nearest other occurrences of Schorl
4.3km (2.7 miles) ⓘFillow Quarry, Branchville, Redding, Fairfield County, Connecticut, USA
7.6km (4.7 miles) ⓘRedding Glen, Redding, Fairfield County, Connecticut, USA
10.5km (6.6 miles) ⓘCasey Quarry (Ridgefield pegmatite), Ridgefield, Fairfield County, Connecticut, USA
10.6km (6.6 miles) ⓘTiticus Mica Quarry, Ridgefield, Fairfield County, Connecticut, USA
14.2km (8.8 miles) ⓘThe Cascades, Fairfield, Fairfield County, Connecticut, USA
15.1km (9.4 miles) ⓘBiermann Quarries (Bethel quarries; Codfish Hill Quarry), Bethel, Fairfield County, Connecticut, USA
15.7km (9.7 miles) ⓘCaptain Cook's Quarry (Purdy Station Quarry), Newtown, Fairfield County, Connecticut, USA
17.3km (10.8 miles) ⓘHobby Hill Quarry, North Castle, Westchester County, New York, USA
17.5km (10.9 miles) ⓘOld Mine Plaza construction site, Long Hill, Trumbull, Fairfield County, Connecticut, USA
17.7km (11.0 miles) ⓘOld Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA
References
Hiller, John. (1967), unpublished sketch map.
 
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