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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Plagioclase from
Charlotteburg Mine, Rockaway Township, Morris County, New Jersey, USA


Locality type:Mine
Classification
Species:'Plagioclase' (not an IMA approved species)
Formula:(Na,Ca)[(Si,Al)AlSi2]O8
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Plagioclase data
Locality Data:Click here to view Charlotteburg Mine, Rockaway Township, Morris County, New Jersey, USA
Data Identifiers
Mindat Occurrence Record ID:71246
Long-form Identifier:1:3:71246:0
GUID (UUID V4):0
Nearest other occurrences of Plagioclase
1.9km (1.2 miles) ⓘCharlottesburg feldspar deposit, Rockaway Township, Morris County, New Jersey, USA
2.3km (1.4 miles) ⓘCopperas Mine, Copperas Mountain, Rockaway Township, Morris County, New Jersey, USA
2.3km (1.4 miles) ⓘGreen Pond Mines, Copperas Mountain, Rockaway Township, Morris County, New Jersey, USA
4.4km (2.8 miles) ⓘBirch Mine, Rockaway Township, Morris County, New Jersey, USA
7.4km (4.6 miles) ⓘTorne Quarry, Powerville, Boonton Township, Morris County, New Jersey, USA
12.7km (7.9 miles) ⓘPompton Junction feldspar deposit, Pompton Lakes, Passaic County, New Jersey, USA
14.3km (8.9 miles) ⓘCopper Mine shaft, Edison Mine, Sparta Township, Sussex County, New Jersey, USA
16.4km (10.2 miles) ⓘJohnson Hill Mine, Wharton, Morris County, New Jersey, USA
16.5km (10.2 miles) ⓘStonetown, Ringwood, Passaic County, New Jersey, USA
16.8km (10.4 miles) ⓘJ.D. King Mine, Mine Hill, Morris County, New Jersey, USA
References
NJ State Geol. Ann. Rpt. (1886):139.
 
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