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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Oligoclase from
Beach Glen Mines (Beach Glenn Mine), Hibernia, Rockaway Township, Morris County, New Jersey, USA


Locality type:Mine
Classification
Species:Albite var: Oligoclase
Formula:(Na,Ca)[Al(Si,Al)Si2O8]
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Oligoclase data
Locality Data:Click here to view Beach Glen Mines (Beach Glenn Mine), Hibernia, Rockaway Township, Morris County, New Jersey, USA
Data Identifiers
Mindat Occurrence Record ID:71075
Long-form Identifier:1:3:71075:4
GUID (UUID V4):0
Nearest other occurrences of Oligoclase
7.5km (4.6 miles) ⓘAllen Mine, Rockaway Township, Morris County, New Jersey, USA
9.8km (6.1 miles) ⓘMase Mountain, Tierneys Corner, Jefferson Township, Morris County, New Jersey, USA
11.9km (7.4 miles) ⓘScrub Oaks Mine, Mine Hill, Morris County, New Jersey, USA
21.2km (13.2 miles) ⓘFurnace Quarry, Franklin, Sussex County, New Jersey, USA
22.4km (13.9 miles) ⓘBEMCO prospect (Charlotte Mine), Cranberry Lake, Byram Township, Sussex County, New Jersey, USA
26.4km (16.4 miles) ⓘKornerupine Group locality, Ringwood, Passaic County, New Jersey, USA
32.1km (19.9 miles) ⓘMarsh Mine, Washington Township, Morris County, New Jersey, USA
45.0km (27.9 miles) ⓘ93rd Street & Riverside Drive, Manhattan (New York County), New York City, New York, USA
45.4km (28.2 miles) ⓘO'Neil Mine, Lake Mombasha, Town of Monroe, Orange County, New York, USA
45.5km (28.3 miles) ⓘ88th Street, Manhattan (New York County), New York City, New York, USA
References
NJ State Geol. Ann. Rpt: (1886):136.
 
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