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
Marsh Mine, Washington 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 Marsh Mine, Washington Township, Morris County, New Jersey, USA
Data Identifiers
Mindat Occurrence Record ID:80244
Long-form Identifier:1:3:80244:4
GUID (UUID V4):0
Nearest other occurrences of Oligoclase
15.8km (9.8 miles) ⓘBEMCO prospect (Charlotte Mine), Cranberry Lake, Byram Township, Sussex County, New Jersey, USA
16.2km (10.0 miles) ⓘAhles Mine (Osmun-Robeson Mine; Pequest), Oxford Furnace, Oxford Township, Warren County, New Jersey, USA
20.2km (12.5 miles) ⓘScrub Oaks Mine, Mine Hill, Morris County, New Jersey, USA
24.2km (15.1 miles) ⓘMase Mountain, Tierneys Corner, Jefferson Township, Morris County, New Jersey, USA
24.7km (15.3 miles) ⓘAllen Mine, Rockaway Township, Morris County, New Jersey, USA
32.1km (19.9 miles) ⓘBeach Glen Mines (Beach Glenn Mine), Hibernia, Rockaway Township, Morris County, New Jersey, USA
38.4km (23.8 miles) ⓘFurnace Quarry, Franklin, Sussex County, New Jersey, USA
56.9km (35.4 miles) ⓘKornerupine Group locality, Ringwood, Passaic County, New Jersey, USA
70.7km (43.9 miles) ⓘ93rd Street & Riverside Drive, Manhattan (New York County), New York City, New York, USA
71.0km (44.1 miles) ⓘ88th Street, Manhattan (New York County), New York City, New York, USA
References
Manchester, James G. (1931) The Minerals of New York City and its Environs. Bulletin of the New York Mineralogical Club Vol. 3 (1). New York Mineralogical Clubp.96
 
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