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
Eureka Stone Quarry, Eureka, Warrington Township, Bucks County, Pennsylvania, USA


Locality type:Quarry
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Eureka Stone Quarry, Eureka, Warrington Township, Bucks County, Pennsylvania, USA
Data Identifiers
Mindat Occurrence Record ID:985478
Long-form Identifier:1:3:985478:9
GUID (UUID V4):0
Nearest other occurrences of Quartz
8.0km (5.0 miles) ⓘDoan's Lead Mine (New Britain Mine), New Galena, New Britain Township, Bucks County, Pennsylvania, USA
14.6km (9.1 miles) ⓘGreyhorse Road, Willow Grove, Upper Moreland Township, Montgomery County, Pennsylvania, USA
15.9km (9.9 miles) ⓘHitner's Marble Quarry (Hitner's Quarry), Whitemarsh Township, Montgomery County, Pennsylvania, USA
16.2km (10.1 miles) ⓘEdge Hill Iron Company Mine, Springfield Township, Montgomery County, Pennsylvania, USA
17.2km (10.7 miles) ⓘOreland, Springfield Township, Montgomery County, Pennsylvania, USA
19.0km (11.8 miles) ⓘD.O. Hitner's Mine, Whitemarsh Township, Montgomery County, Pennsylvania, USA
19.2km (11.9 miles) ⓘHarleysville Materials Quarry (M&M Stone), Lower Salford Township, Montgomery County, Pennsylvania, USA
20.8km (12.9 miles) ⓘVanartsdalen's Quarry, Lower Southampton Township, Bucks County, Pennsylvania, USA
21.3km (13.3 miles) ⓘComley's Quarry, Germantown, Philadelphia, Philadelphia County, Pennsylvania, USA
21.8km (13.6 miles) ⓘSpring Mill Iron Ore pits, Whitemarsh Township, Montgomery County, Pennsylvania, USA
References
Warren Cummings, Geologist, NJDOT, personal communication, 2008.
 
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