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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Selenite from
Prospect Park Quarry, Prospect Park, Passaic County, New Jersey, USA


08938740017362763846828.jpg
Selenite

Prospect Park Quarry, Prospect Park, Passaic County, New Jersey, USA
08938740017362763846828.jpg
Selenite

Prospect Park Quarry, Prospect Park, Passaic County, New Jersey, USA
08938740017362763846828.jpg
Selenite

Prospect Park Quarry, Prospect Park, Passaic County, New Jersey, USA
Locality type:Quarry
Classification
Species:Gypsum var: Selenite
Formula:CaSO4 · 2H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Selenite data
Locality Data:Click here to view Prospect Park Quarry, Prospect Park, Passaic County, New Jersey, USA
Data Identifiers
Mindat Occurrence Record ID:78698
Long-form Identifier:1:3:78698:8
GUID (UUID V4):0
Nearest other occurrences of Selenite
1.9km (1.2 miles) ⓘBraen Quarry, Haledon, Passaic County, New Jersey, USA
4.0km (2.5 miles) ⓘUpper New Street Quarry, Paterson, Passaic County, New Jersey, USA
4.1km (2.6 miles) ⓘLower New Street Quarry, Paterson, Passaic County, New Jersey, USA
8.2km (5.1 miles) ⓘHoudaille Quarry, Little Falls Township, Passaic County, New Jersey, USA
8.2km (5.1 miles) ⓘFrancisco Brothers Quarry, Great Notch, Little Falls Township, Passaic County, New Jersey, USA
11.1km (6.9 miles) ⓘMcDowell's Quarry (Osborne and Marsellis Quarry), Upper Montclair, Montclair, Essex County, New Jersey, USA
20.0km (12.4 miles) ⓘRiker Hill, Livingston, Livingston, Essex County, New Jersey, USA
21.6km (13.4 miles) ⓘLaurel Hill, Secaucus, Hudson County, New Jersey, USA
39.3km (24.4 miles) ⓘSterling Mine, Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA
42.1km (26.2 miles) ⓘMillington Quarry, Bernards Township, Somerset County, New Jersey, USA
References
Vitali, G. (1978) Minerals of the Watchungs - Part II. Lapidary Journal: 32: 1700-1720.
Quest for NJ Mins., R. Speiser (1978): 18.
Peters, Joseph J. (1984) Triassic Traprock Minerals of New Jersey. Rocks & Minerals, 59 (4) 157-183 doi:10.1080/00357529.1984.11764472
 
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