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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Opal-AN from
Baylis Quarry (Bayliss Quarry), Bedford, Westchester County, New York, USA


Locality type:Quarry
Classification
Species:Opal var: Opal-AN
Formula:SiO2 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Opal-AN data
Locality Data:Click here to view Baylis Quarry (Bayliss Quarry), Bedford, Westchester County, New York, USA
Data Identifiers
Mindat Occurrence Record ID:49103
Long-form Identifier:1:3:49103:5
GUID (UUID V4):0
Nearest other occurrences of Opal-AN
1.0km (0.6 miles) ⓘConsolidated Feldspar Mining Corporation's plant, Bedford, Westchester County, New York, USA
1.9km (1.2 miles) ⓘBedford, Westchester County, New York, USA
15.6km (9.7 miles) ⓘCasey Quarry (Ridgefield pegmatite), Ridgefield, Fairfield County, Connecticut, USA
18.8km (11.7 miles) ⓘFillow Quarry, Branchville, Redding, Fairfield County, Connecticut, USA
20.1km (12.5 miles) ⓘWhite Plains, Westchester County, New York, USA
23.9km (14.9 miles) ⓘStrang Emery Pit, Toddville, Cortlandt Township, Westchester County, New York, USA
25.3km (15.7 miles) ⓘInterstate 84 road cuts, Town of Southeast, Putnam County, New York, USA
25.4km (15.8 miles) ⓘLake Street Quarry, Harrison, Westchester County, New York, USA
25.8km (16.0 miles) ⓘPhillips ore bed, Town of Putnam Valley, Putnam County, New York, USA
26.0km (16.1 miles) ⓘWestern Connecticut State University, Danbury, Fairfield County, Connecticut, USA
References
Rocks & Min.:11:66
23:712.
 
and/or  
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