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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Muscovite from
Sussex nepheline-syenite sill, Libertyville, Wantage Township, Sussex County, New Jersey, USA


Locality type:Sill
Classification
Species:Muscovite
Formula:KAl2(AlSi3O10)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Muscovite data
Locality Data:Click here to view Sussex nepheline-syenite sill, Libertyville, Wantage Township, Sussex County, New Jersey, USA
Data Identifiers
Mindat Occurrence Record ID:986178
Long-form Identifier:1:3:986178:7
GUID (UUID V4):0
Nearest other occurrences of Muscovite
8.8km (5.5 miles) ⓘMcAfee Quarry, McAfee, Vernon Township, Sussex County, New Jersey, USA
11.1km (6.9 miles) ⓘMill site dump, Franklin Mine, Franklin, Sussex County, New Jersey, USA
11.9km (7.4 miles) ⓘFranklin Mine, Franklin, Sussex County, New Jersey, USA
12.0km (7.4 miles) ⓘBuckwheat dump mineral collecting site, Franklin Mine, Franklin, Sussex County, New Jersey, USA
12.0km (7.4 miles) ⓘBuckwheat pit, Franklin Mine, Franklin, Sussex County, New Jersey, USA
12.4km (7.7 miles) ⓘFurnace Quarry, Franklin, Sussex County, New Jersey, USA
14.0km (8.7 miles) ⓘFranklin Quarry, Franklin, Sussex County, New Jersey, USA
15.0km (9.3 miles) ⓘSterling Mine, Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA
15.2km (9.4 miles) ⓘAtlas Quarry (Empire Quarry), Pine Island, Town of Warwick, Orange County, New York, USA
18.4km (11.4 miles) ⓘLime Crest Quarry, Sparta Township, Sussex County, New Jersey, USA
References
Rutgers Univ. Bull. #5, Pt 1: 54-55.
 
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