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Beryl from
Biermann Quarries (Bethel quarries) and tourmaline ledge, Bethel, Fairfield County, Connecticut, USA

Classification
Species:Beryl
Formula:Be3Al2(Si6O18)
Formation:Primary
Comments:Crystals can be large (over 60 cm), though typically subhedral, and multi-colored, and varying from partly gemmy to brown, opaque, and altered to a fine-grained mixture of bertrandite, muscovite, adularia, quartz and albite. Many crystals are found frozen in matrix in a subparallel arrangement with one end rooted in a layer mica.
Habit:Hexagonal prisms elongated along c axis. Commonly tapered.
Colour:orange-yellow, pale yellow to pale green, brown when altered
Abundance at site:Common
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
References
References:Januzzi, Ronald E. (1976), Mineral Localities Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
Data
Mineral Data:Click here to view Beryl data
Locality Data:Click here to view Biermann Quarries (Bethel quarries) and tourmaline ledge, Bethel, Fairfield County, Connecticut, USA
Photo GalleryView Gallery (11 photos)
Nearest other occurrences of Beryl
1.9km (1.2 miles) Captain Cook's Quarry (Purdy Station Quarry), Newtown, Fairfield County, Connecticut, USA
9.1km (5.7 miles) Danbury beryl prospect, Brookfield, Fairfield County, Connecticut, USA
11.4km (7.1 miles) U. S. Route 7 Expressway (Danbury line to Iron Works District), Brookfield, Fairfield County, Connecticut, USA
12.1km (7.5 miles) Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Redding (Reading), Fairfield County, Connecticut, USA
12.2km (7.5 miles) State Route 111 road cuts, Long Hill, Trumbull, Fairfield County, Connecticut, USA
12.2km (7.6 miles) Old Mine Plaza construction site, Long Hill, Trumbull, Fairfield County, Connecticut, USA
12.6km (7.8 miles) Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA
13.9km (8.6 miles) East Village pegmatite, Monroe, Fairfield County, Connecticut, USA
15.1km (9.4 miles) Brookfield, Fairfield County, Connecticut, USA
15.4km (9.6 miles) Casey Quarry (Ridgefield pegmatite), Ridgefield, Fairfield County, Connecticut, USA
 
Mineral and/or Locality  
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