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
Houdaille Quarry (Summit Quarry; Commonwealth Quarry), Springfield, Springfield Township, Union County, New Jersey, USA


Locality type:Quarry
Classification
Species:Anhydrite
Formula:CaSO4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Anhydrite data
Locality Data:Click here to view Houdaille Quarry (Summit Quarry; Commonwealth Quarry), Springfield, Springfield Township, Union County, New Jersey, USA
Data Identifiers
Mindat Occurrence Record ID:133403
Long-form Identifier:1:3:133403:6
GUID (UUID V4):0
Nearest other occurrences of Anhydrite
7.8km (4.8 miles) ⓘFanwood Quarry (Weldon Quarry), Watchung, Somerset County, New Jersey, USA
13.1km (8.2 miles) ⓘOrange Quarry Company Quarry (Eagle Rock Quarry), West Orange, West Orange, Essex County, New Jersey, USA
17.1km (10.6 miles) ⓘMillington Quarry, Bernards Township, Somerset County, New Jersey, USA
22.7km (14.1 miles) ⓘUnion Building and Construction Quarry, Woodland Park, Passaic County, New Jersey, USA
23.6km (14.6 miles) ⓘChimney Rock Quarry, Bridgewater Township, Somerset County, New Jersey, USA
25.4km (15.8 miles) ⓘLower New Street Quarry, Paterson, Passaic County, New Jersey, USA
25.5km (15.9 miles) ⓘUpper New Street Quarry, Paterson, Passaic County, New Jersey, USA
28.0km (17.4 miles) ⓘBraen Quarry, Haledon, Passaic County, New Jersey, USA
29.4km (18.3 miles) ⓘProspect Park Quarry, Prospect Park, Passaic County, New Jersey, USA
47.5km (29.5 miles) ⓘSterling Mine, Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA
References
Cummings, Warren (1987) Mineralization at the Fanwood & Summit Quarries, New Jersey. Rocks & Minerals, 62 (3) 150-159 doi:10.1080/00357529.1987.11762647
 
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