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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Beryl from
Old Mine Plaza construction site, Long Hill, Trumbull, Fairfield County, Connecticut, USA


Locality type:Construction Site
Classification
Species:Beryl
Formula:Be3Al2(Si6O18)
Comments:Small, but very clear light green beryl found in limestone (calcite) pods in black schist. Color possibly caused by iron(?) impurities. Dissolve the crystals out of the matrix with dilute HCl.
Colour:light green (emerald)
Quality for species:Good crystals or rich for species - important (!)
Abundance at site:Rare
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Calcite19
Phlogopite9
Marialite9
Quartz8
Pyrrhotite4
Albite2
Data
Mineral Data:Click here to view Beryl data
Locality Data:Click here to view Old Mine Plaza construction site, Long Hill, Trumbull, Fairfield County, Connecticut, USA
Photo GalleryView Gallery (19 photos)
Data Identifiers
Mindat Occurrence Record ID:347316
Long-form Identifier:1:3:347316:0
GUID (UUID V4):0
Nearest other occurrences of Beryl
0.4km (0.2 miles) Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA
0.5km (0.3 miles) State Route 111 road cuts, Long Hill, Trumbull, Fairfield County, Connecticut, USA
9.0km (5.6 miles) East Village pegmatite prospect, Monroe, Fairfield County, Connecticut, USA
10.7km (6.6 miles) Captain Cook's Quarry (Purdy Station Quarry), Newtown, Fairfield County, Connecticut, USA
12.2km (7.6 miles) Biermann Quarries (Bethel quarries; Codfish Hill Quarry), Bethel, Fairfield County, Connecticut, USA
15.8km (9.8 miles) Haynes Quarry, Seymour, New Haven County, Connecticut, USA
16.7km (10.4 miles) Metro North Train Station, Fairfield, Fairfield County, Connecticut, USA
17.6km (10.9 miles) Fillow Quarry, Branchville, Redding, Fairfield County, Connecticut, USA
18.0km (11.2 miles) State Route 67 construction site, Oxford, New Haven County, Connecticut, USA
18.2km (11.3 miles) Curtis Quarry, Southford, Southbury, New Haven County, Connecticut, USA
References
 
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