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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Pyrite from
Municipal Quarry, Portland, Cumberland County, Maine, USA


Locality type:Quarry
Classification
Species:Pyrite
Formula:FeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pyrite data
Locality Data:Click here to view Municipal Quarry, Portland, Cumberland County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:99845
Long-form Identifier:1:3:99845:9
GUID (UUID V4):0
Nearest other occurrences of Pyrite
6.2km (3.9 miles) ⓘSpring Street Quarry (Pike Industries Quarry; Blue Rock Industries Quarry), Westbrook, Cumberland County, Maine, USA
18.9km (11.8 miles) ⓘWolfe's Neck locality, Freeport, Cumberland County, Maine, USA
24.5km (15.3 miles) ⓘTryon Mountain Quarries, Pownal, Cumberland County, Maine, USA
33.8km (21.0 miles) ⓘStandpipe Hill Quarries, Topsham, Sagadahoc County, Maine, USA
35.5km (22.1 miles) ⓘBasin Quarry, Phippsburg, Sagadahoc County, Maine, USA
37.4km (23.3 miles) ⓘSwamp #1 Quarry, Cathance River Nature Preserve, Topsham, Sagadahoc County, Maine, USA
37.4km (23.3 miles) ⓘSwamp #2 quarry, Cathance River Nature Preserve, Topsham, Sagadahoc County, Maine, USA
37.7km (23.4 miles) ⓘHeath Quarry, Casco, Cumberland County, Maine, USA
40.7km (25.3 miles) ⓘConsolidated Feldspar Quarries, Georgetown, Sagadahoc County, Maine, USA
40.9km (25.4 miles) ⓘAlfred Plourde Parkway Quarry, Lewiston, Androscoggin County, Maine, USA
References
Rocks & Min.: 5:46.
 
and/or  
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