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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Pyrite from
Jones mine, Caernarvon Township, Berks County, Pennsylvania, USA


Locality type:Mine
Classification
Species:Pyrite
Formula:FeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pyrite data
Locality Data:Click here to view Jones mine, Caernarvon Township, Berks County, Pennsylvania, USA
Data Identifiers
Mindat Occurrence Record ID:70503
Long-form Identifier:1:3:70503:5
GUID (UUID V4):0
Nearest other occurrences of Pyrite
2.7km (1.7 miles) ⓘGrace Mine, Morgantown, Berks County, Pennsylvania, USA
4.1km (2.6 miles) ⓘHopewell Mines, Warwick (Saint Marys), Warwick Township, Chester County, Pennsylvania, USA
4.2km (2.6 miles) ⓘHopewell mine, Hopewell Mines, Warwick (Saint Marys), Warwick Township, Chester County, Pennsylvania, USA
6.4km (4.0 miles) ⓘWarwick Mines, Warwick (Saint Marys), Warwick Township, Chester County, Pennsylvania, USA
10.7km (6.7 miles) ⓘDyer Quarry, Gibraltar, Birdsboro, Berks County, Pennsylvania, USA
11.1km (6.9 miles) ⓘSilver Hill Quarry, Bowmansville, Brecknock Township, Lancaster County, Pennsylvania, USA
11.3km (7.0 miles) ⓘKeim's Mine, French Creek Mines, Saint Peters, Warwick Township, Chester County, Pennsylvania, USA
11.3km (7.0 miles) ⓘFrench Creek Mines, Saint Peters, Warwick Township, Chester County, Pennsylvania, USA
13.6km (8.4 miles) ⓘKeystone Trap Rock Quarry, Cornog, Wallace Township, Chester County, Pennsylvania, USA
16.2km (10.1 miles) ⓘFritz Island Mines, Cumru Township, Berks County, Pennsylvania, USA
References
Dana 6:1067
Dana 7:II:255
Rocks & Min.: 17:340..
Piatak, Nadine M., Seal, Robert R. (2012) Mineralogy and environmental geochemistry of historical iron slag, Hopewell Furnace National Historic Site, Pennsylvania, USA. Applied Geochemistry, 27 (3) 623-643 doi:10.1016/j.apgeochem.2011.12.011
 
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