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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Pyroxene Group from
Sussex Mills dike, Sussex Mills (Howellsville), Sparta Township, Sussex County, New Jersey, USA


Locality type:Dike
Classification
Species:'Pyroxene Group' (not an IMA approved species)
Formula:ADSi2O6
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pyroxene Group data
Locality Data:Click here to view Sussex Mills dike, Sussex Mills (Howellsville), Sparta Township, Sussex County, New Jersey, USA
Data Identifiers
Mindat Occurrence Record ID:74802
Long-form Identifier:1:3:74802:1
GUID (UUID V4):0
Nearest other occurrences of Pyroxene Group
5.2km (3.2 miles) ⓘLongcore Mine (Longcove Mine), Clearwater, Andover Township, Sussex County, New Jersey, USA
6.3km (3.9 miles) ⓘSulphur Hill Mine (Sulfur Hill Mine), Andover Township, Sussex County, New Jersey, USA
9.7km (6.0 miles) ⓘGooseberry Mine, Balls Hill Iron Mines, Franklin, Sussex County, New Jersey, USA
16.4km (10.2 miles) ⓘBerkshire Valley, Jefferson Township, Morris County, New Jersey, USA
17.7km (11.0 miles) ⓘDunker Pond, Clinton, West Milford Township, Passaic County, New Jersey, USA
18.0km (11.2 miles) ⓘAllen Mine, Rockaway Township, Morris County, New Jersey, USA
18.0km (11.2 miles) ⓘMount Hope Mines (Mt Hope Mines), Mount Hope, Rockaway Township, Morris County, New Jersey, USA
19.6km (12.2 miles) ⓘBirch Mine, Rockaway Township, Morris County, New Jersey, USA
20.3km (12.6 miles) ⓘJ.D. King Mine, Mine Hill, Morris County, New Jersey, USA
20.3km (12.6 miles) ⓘCopperas Mine, Copperas Mountain, Rockaway Township, Morris County, New Jersey, USA
References
Jour. of Geol. Vol. LV(6)(Nov 47): 522-526.
Milton, Charles (1947) Diabase Dikes of the Franklin Furnace New Jersey, Quadrangle. The Journal of Geology, 55 (6) 522-526 doi:10.1086/625465
 
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