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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Arsenopyrite from
Vespa stone quarry, East Hampton, Middlesex County, Connecticut, USA


Locality type:Quarry
Classification
Species:Arsenopyrite
Formula:FeAsS
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Arsenopyrite data
Locality Data:Click here to view Vespa stone quarry, East Hampton, Middlesex County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:130271
Long-form Identifier:1:3:130271:4
GUID (UUID V4):0
Nearest other occurrences of Arsenopyrite
3.8km (2.4 miles) ⓘGreat Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
3.9km (2.5 miles) ⓘState Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
7.6km (4.7 miles) ⓘStrickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
8.0km (5.0 miles) ⓘWhite Rocks Quarry (Consolidated Quarry), White Rock Mining District, Middletown, Middlesex County, Connecticut, USA
8.8km (5.4 miles) ⓘState Farm Quarry (Road Metal Quarry), Middletown, Middlesex County, Connecticut, USA
8.9km (5.5 miles) ⓘMiddletown lead mines (Middletown Mine), Middletown, Middlesex County, Connecticut, USA
10.2km (6.3 miles) ⓘHale Quarry (Andrews Quarry; Glastonbury Quarry), Portland, Middlesex County, Connecticut, USA
10.5km (6.5 miles) ⓘAndrews Quarry (old Hale Quarry; Grandfather Andrews Quarry), Portland, Middlesex County, Connecticut, USA
45.3km (28.2 miles) ⓘBlue Stone Quarry, Waterbury, New Haven County, Connecticut, USA
49.8km (31.0 miles) ⓘSilver mine, Seymour, New Haven County, Connecticut, USA
References
Rocks & Min.: 70:403
 
and/or  
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