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


09117570017363427013065.jpg
Quartz

Brookdale Mine, Schuylkill Township, Chester County, Pennsylvania, USA
06975580017361083423130.jpg
Quartz

Brookdale Mine, Schuylkill Township, Chester County, Pennsylvania, USA
01048060017272028188252.jpg
Quartz, etc.

Brookdale Mine, Schuylkill Township, Chester County, Pennsylvania, USA
01778350017272028201215.jpg
Quartz

Brookdale Mine, Schuylkill Township, Chester County, Pennsylvania, USA
09117570017363427013065.jpg
Quartz

Brookdale Mine, Schuylkill Township, Chester County, Pennsylvania, USA
02534880017363427029970.jpg
Quartz

Brookdale Mine, Schuylkill Township, Chester County, Pennsylvania, USA
05515240017363427025603.jpg
Quartz, etc.

Brookdale Mine, Schuylkill Township, Chester County, Pennsylvania, USA
05020750017363427045793.jpg
Quartz

Brookdale Mine, Schuylkill Township, Chester County, Pennsylvania, USA
00003640017363427052161.jpg
Quartz

Brookdale Mine, Schuylkill Township, Chester County, Pennsylvania, USA
06975580017361083423130.jpg
Quartz

Brookdale Mine, Schuylkill Township, Chester County, Pennsylvania, USA
01048060017272028188252.jpg
Quartz, etc.

Brookdale Mine, Schuylkill Township, Chester County, Pennsylvania, USA
03447000017272028211552.jpg
Quartz

Brookdale Mine, Schuylkill Township, Chester County, Pennsylvania, USA
Locality type:Mine
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Pyromorphite18
Anglesite4
Sphalerite3
Mimetite2
Wulfenite1
Galena1
Hydrozincite1
Cerussite1
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Brookdale Mine, Schuylkill Township, Chester County, Pennsylvania, USA
Photo GalleryView Gallery (6 photos)
Data Identifiers
Mindat Occurrence Record ID:50217
Long-form Identifier:1:3:50217:3
GUID (UUID V4):0
Nearest other occurrences of Quartz
0.4km (0.2 miles) ⓘSouthwest Chester County Mine (New Chester County Mine), Schuylkill Township, Chester County, Pennsylvania, USA
0.5km (0.3 miles) ⓘPhoenix Mine, Charlestown 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
2.5km (1.6 miles) ⓘMorris Mine, Schuylkill Township, Chester County, Pennsylvania, USA
5.0km (3.1 miles) ⓘBlack Rock Tunnel (Conrail Tunnel), Phoenixville, Chester County, Pennsylvania, USA
5.3km (3.3 miles) ⓘMill Lane Farms (Great Valley Corporate Center), East Whiteland Township, 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
References
Sloto, Ronald A. (1989) Famous Mineral Localities: The Phoenixville Lead-Silver Mines, Chester County, Pennsylvania. The Mineralogical Record, 20 (5) 369-386
 
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