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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Corundum from
Passaic pit (Marshall Mine; Passaic Mine), Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA


Locality type:Pit
Classification
Species:Corundum
Formula:Al2O3
Comments:Occurs in altered ore as relic material from disintegrated marble.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Corundum data
Locality Data:Click here to view Passaic pit (Marshall Mine; Passaic Mine), Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA
Data Identifiers
Mindat Occurrence Record ID:51884
Long-form Identifier:1:3:51884:6
GUID (UUID V4):0
Nearest other occurrences of Corundum
0.1km (0.1 miles) ⓘNoble pit (Lot #10 - Ogden Divisions; Noble Mine), Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA
0.2km (0.1 miles) ⓘSterling Mine, Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA
1.3km (0.8 miles) ⓘFranklin Quarry, Franklin, Sussex County, New Jersey, USA
7.1km (4.4 miles) ⓘLime Crest Quarry, Sparta Township, Sussex County, New Jersey, USA
8.7km (5.4 miles) ⓘWindsor Quarry (Winsor Quarry), Rudeville, Hardyston Township, Sussex County, New Jersey, USA
11.2km (6.9 miles) ⓘMcAfee, Vernon Township, Sussex County, New Jersey, USA
24.5km (15.2 miles) ⓘAmity, Town of Warwick, Orange County, New York, USA
25.7km (16.0 miles) ⓘRhein Property, Amity, Town of Warwick, Orange County, New York, USA
60.4km (37.5 miles) ⓘCrugers Emery Mine, Montrose, Cortlandt Township, Westchester County, New York, USA
61.8km (38.4 miles) ⓘDe Luca Mine (McCoy Mine), Peekskill, Westchester County, New York, USA
References
Palache, Charles (1935) The minerals of Franklin and Sterling Hill, Sussex County, New Jersey. Professional Paper 180. US Geological Survey 135 pp. doi:10.3133/pp180 p.41
 
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