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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Sphalerite from
Brookdale Mine, Schuylkill Township, Chester County, Pennsylvania, USA


04851210017821431072001.jpg
Sphalerite, etc.

Brookdale Mine, Schuylkill Township, Chester County, Pennsylvania, USA
08647320017821431071845.jpg
Sphalerite, etc.

Brookdale Mine, Schuylkill Township, Chester County, Pennsylvania, USA
08560000017821431088210.jpg
Sphalerite, etc.

Brookdale Mine, Schuylkill Township, Chester County, Pennsylvania, USA
06121430017369069881436.jpg
Sphalerite, etc.

Brookdale Mine, Schuylkill Township, Chester County, Pennsylvania, USA
00329730017800117113108.jpg
Sphalerite, etc.

Brookdale Mine, Schuylkill Township, Chester County, Pennsylvania, USA
03280050017800124955492.jpg
Sphalerite, etc.

Brookdale Mine, Schuylkill Township, Chester County, Pennsylvania, USA
06121430017369069881436.jpg
Sphalerite, etc.

Brookdale Mine, Schuylkill Township, Chester County, Pennsylvania, USA
08647320017821431071845.jpg
Sphalerite, etc.

Brookdale Mine, Schuylkill Township, Chester County, Pennsylvania, USA
08560000017821431088210.jpg
Sphalerite, etc.

Brookdale Mine, Schuylkill Township, Chester County, Pennsylvania, USA
Locality type:Mine
Classification
Species:Sphalerite
Formula:ZnS
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Quartz3
Galena1
Hydrozincite1
Data
Mineral Data:Click here to view Sphalerite data
Locality Data:Click here to view Brookdale Mine, Schuylkill Township, Chester County, Pennsylvania, USA
Photo GalleryView Gallery (3 photos)
Data Identifiers
Mindat Occurrence Record ID:50227
Long-form Identifier:1:3:50227:0
GUID (UUID V4):0
Nearest other occurrences of Sphalerite
0.4km (0.2 miles) ⓘSouthwest Chester County Mine (New Chester County Mine), Schuylkill Township, Chester County, Pennsylvania, USA
0.6km (0.4 miles) ⓘChester County Mine, Schuylkill Township, Chester County, Pennsylvania, USA
0.6km (0.4 miles) ⓘWheatley Mines, Schuylkill Township, Chester County, Pennsylvania, USA
1.4km (0.8 miles) ⓘCharleston Mine, Charlestown Township, Chester County, Pennsylvania, USA
5.0km (3.1 miles) ⓘBlack Rock Tunnel (Conrail Tunnel), Phoenixville, Chester County, Pennsylvania, USA
7.2km (4.5 miles) ⓘEcton Mine, Perkiomen Mines, Audubon, Lower Providence Township, Montgomery County, Pennsylvania, USA
7.7km (4.8 miles) ⓘWhim shaft, Perkiomen Mines, Audubon, Lower Providence Township, Montgomery County, Pennsylvania, USA
7.9km (4.9 miles) ⓘPerkiomen Copper Mine, Perkiomen Mines, Audubon, Lower Providence Township, Montgomery County, Pennsylvania, USA
14.1km (8.8 miles) ⓘLimestone quarry, Upper Merion Township, Montgomery County, Pennsylvania, USA
18.8km (11.7 miles) ⓘDownington, Chester County, Pennsylvania, USA
References
Rocks & Min.:9:21.
 
and/or  
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