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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Chalcocite from
Upper New Street Quarry, Paterson, Passaic County, New Jersey, USA


08797280017367268132109.jpg
Chalcocite, etc.

Upper New Street Quarry, Paterson, Passaic County, New Jersey, USA
04056560017367268146233.jpg
Chalcocite, etc.

Upper New Street Quarry, Paterson, Passaic County, New Jersey, USA
08797280017367268132109.jpg
Chalcocite, etc.

Upper New Street Quarry, Paterson, Passaic County, New Jersey, USA
00173420017272014853743.jpg
Chalcocite, etc.

Upper New Street Quarry, Paterson, Passaic County, New Jersey, USA
01040930017272035018519.jpg
Chalcocite, etc.

Upper New Street Quarry, Paterson, Passaic County, New Jersey, USA
00173420017272014853743.jpg
Chalcocite, etc.

Upper New Street Quarry, Paterson, Passaic County, New Jersey, USA
Locality type:Quarry
Classification
Species:Chalcocite
Formula:Cu2S
Quality for species:Poor for species, only of interest for locality collectors. (#)
Abundance at site:Very Rare
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Associated Minerals Based on Photo Data:
Calcite1
Malachite1
Heulandite Subgroup1
Chrysocolla1
Quartz1
Data
Mineral Data:Click here to view Chalcocite data
Locality Data:Click here to view Upper New Street Quarry, Paterson, Passaic County, New Jersey, USA
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:548987
Long-form Identifier:1:3:548987:9
GUID (UUID V4):0
Nearest other occurrences of Chalcocite
3.2km (2.0 miles) ⓘUnion Building and Construction Quarry, Woodland Park, Passaic County, New Jersey, USA
4.0km (2.5 miles) ⓘProspect Park Quarry, Prospect Park, Passaic County, New Jersey, USA
4.1km (2.6 miles) ⓘHoudaille Quarry, Little Falls Township, Passaic County, New Jersey, USA
4.2km (2.6 miles) ⓘFrancisco Brothers Quarry, Great Notch, Little Falls Township, Passaic County, New Jersey, USA
7.1km (4.4 miles) ⓘMcDowell's Quarry (Osborne and Marsellis Quarry), Upper Montclair, Montclair, Essex County, New Jersey, USA
10.5km (6.6 miles) ⓘAvondale, Nutley, Essex County, New Jersey, USA
11.8km (7.4 miles) ⓘGlen Ridge Mines, Glen Ridge, Essex County, New Jersey, USA
14.1km (8.8 miles) ⓘDod Mine, East Orange, Essex County, New Jersey, USA
15.0km (9.3 miles) ⓘSchuyler Copper Mine, North Arlington, Bergen County, New Jersey, USA
18.3km (11.4 miles) ⓘLaurel Hill, Secaucus, Hudson County, New Jersey, USA
References
Specimen collected by and in the collection of Andrew Kruegel.
 
and/or  
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