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
Greyhorse Road, Willow Grove, Upper Moreland Township, Montgomery County, Pennsylvania, USA


Locality type:Road
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Greyhorse Road, Willow Grove, Upper Moreland Township, Montgomery County, Pennsylvania, USA
Data Identifiers
Mindat Occurrence Record ID:642802
Long-form Identifier:1:3:642802:0
GUID (UUID V4):0
Nearest other occurrences of Quartz
7.2km (4.4 miles) ⓘEdge Hill Iron Company Mine, Springfield Township, Montgomery County, Pennsylvania, USA
9.5km (5.9 miles) ⓘOreland, Springfield Township, Montgomery County, Pennsylvania, USA
10.3km (6.4 miles) ⓘHitner's Marble Quarry (Hitner's Quarry), Whitemarsh Township, Montgomery County, Pennsylvania, USA
11.7km (7.3 miles) ⓘVanartsdalen's Quarry, Lower Southampton Township, Bucks County, Pennsylvania, USA
11.8km (7.3 miles) ⓘComley's Quarry, Germantown, Philadelphia, Philadelphia County, Pennsylvania, USA
13.4km (8.3 miles) ⓘJerry O'Neill's Quarry, Tacony Creek Valley, Philadelphia, Philadelphia County, Pennsylvania, USA
13.6km (8.4 miles) ⓘD.O. Hitner's Mine, Whitemarsh Township, Montgomery County, Pennsylvania, USA
13.7km (8.5 miles) ⓘWissahickon Valley, Philadelphia, Philadelphia County, Pennsylvania, USA
14.5km (9.0 miles) ⓘBarber's Quarry, Frankford, Philadelphia, Philadelphia County, Pennsylvania, USA
14.6km (9.1 miles) ⓘEureka Stone Quarry, Eureka, Warrington Township, Bucks County, Pennsylvania, USA
References
Weissman unpublished observations
 
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