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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Serpentine Subgroup from
Passaic County, New Jersey, USA


Locality type:County
Classification
Species:'Serpentine Subgroup' (not an IMA approved species)
Formula:D3[Si2O5](OH)4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Serpentine Subgroup data
Locality Data:Click here to view Passaic County, New Jersey, USA
Data Identifiers
Mindat Occurrence Record ID:360357
Long-form Identifier:1:3:360357:4
GUID (UUID V4):0
Nearest other occurrences of Serpentine Subgroup
17.8km (11.1 miles) ⓘMontville serpentine deposit, Montville Township, Morris County, New Jersey, USA
17.8km (11.1 miles) ⓘLake Valhalla Quarry (Gordon's Crystalline Limestone Quarry), Montville Township, Morris County, New Jersey, USA
22.6km (14.1 miles) ⓘStevens Bluffs, Hoboken, Hudson County, New Jersey, USA
22.8km (14.1 miles) ⓘ10th Avenue between 50th Street & 63rd Street, Manhattan (New York County), New York City, New York, USA
33.5km (20.8 miles) ⓘGrymes Hill, Staten Island (Richmond County), New York City, New York, USA
35.2km (21.9 miles) ⓘSpring Street Artinite occurrence, Staten Island (Richmond County), New York City, New York, USA
37.3km (23.2 miles) ⓘLincoln Avenue, Staten Island (Richmond County), New York City, New York, USA
41.1km (25.5 miles) ⓘO'Neil Mine, Lake Mombasha, Town of Monroe, Orange County, New York, USA
41.3km (25.6 miles) ⓘSterling Hill, Ogdensburg, Sussex County, New Jersey, USA
45.8km (28.4 miles) ⓘLime Crest Quarry, Sparta Township, Sussex County, New Jersey, USA
References
Ransom, Jay Ellis (1974) Gems and Minerals of America - A Guide to Rock Collecting. Harper & Row.
 
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