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


04806430017368169003568.jpg
Anhydrite, etc.

Prospect Park Quarry, Prospect Park, Passaic County, New Jersey, USA
04806430017368169003568.jpg
Anhydrite, etc.

Prospect Park Quarry, Prospect Park, Passaic County, New Jersey, USA
09026630017272034041775.jpg
Anhydrite, etc.

Prospect Park Quarry, Prospect Park, Passaic County, New Jersey, USA
Locality type:Quarry
Classification
Species:Anhydrite
Formula:CaSO4
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Calcite3
Stilbite Subgroup3
Quartz2
Datolite1
Prehnite1
Laumontite1
Data
Mineral Data:Click here to view Anhydrite data
Locality Data:Click here to view Prospect Park Quarry, Prospect Park, Passaic County, New Jersey, USA
Data Identifiers
Mindat Occurrence Record ID:38801
Long-form Identifier:1:3:38801:4
GUID (UUID V4):0
Nearest other occurrences of Anhydrite
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
7.2km (4.5 miles) ⓘUnion Building and Construction Quarry, Woodland Park, Passaic County, New Jersey, USA
16.6km (10.3 miles) ⓘOrange Quarry Company Quarry (Eagle Rock Quarry), West Orange, West Orange, Essex County, New Jersey, USA
29.4km (18.3 miles) ⓘHoudaille Quarry (Summit Quarry; Commonwealth Quarry), Springfield, Springfield Township, Union County, New Jersey, USA
36.8km (22.8 miles) ⓘFanwood Quarry (Weldon Quarry), Watchung, Somerset County, New Jersey, USA
39.3km (24.4 miles) ⓘSterling Mine, Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA
39.6km (24.6 miles) ⓘFranklin Mine, Franklin, Sussex County, New Jersey, USA
42.1km (26.2 miles) ⓘMillington Quarry, Bernards Township, Somerset County, New Jersey, USA
References
NJ Geol. Survey Bull. #64, Trap Rock Mins of NJ, Mason, B. (1960)
Peters, Thomas A., Peters, Joseph J. (1978) Famous Mineral Localities: Paterson, New Jersey. The Mineralogical Record, 9 (3) 157-179
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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