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
D.O. Hitner's Mine, Whitemarsh Township, Montgomery County, Pennsylvania, USA


Locality type:Mine
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view D.O. Hitner's Mine, Whitemarsh Township, Montgomery County, Pennsylvania, USA
Data Identifiers
Mindat Occurrence Record ID:360484
Long-form Identifier:1:3:360484:7
GUID (UUID V4):0
Nearest other occurrences of Quartz
3.5km (2.2 miles) ⓘSpring Mill Iron Ore pits, Whitemarsh Township, Montgomery County, Pennsylvania, USA
3.6km (2.3 miles) ⓘHitner's Marble Quarry (Hitner's Quarry), Whitemarsh Township, Montgomery County, Pennsylvania, USA
4.1km (2.6 miles) ⓘOreland, Springfield Township, Montgomery County, Pennsylvania, USA
4.8km (3.0 miles) ⓘWissahickon Valley, Philadelphia, Philadelphia County, Pennsylvania, USA
5.3km (3.3 miles) ⓘComley's Quarry, Germantown, Philadelphia, Philadelphia County, Pennsylvania, USA
6.5km (4.0 miles) ⓘEdge Hill Iron Company Mine, Springfield Township, Montgomery County, Pennsylvania, USA
6.8km (4.2 miles) ⓘBullock Quarry (Geo. Bullock Quarry; George Bullock Quarry), West Conshohocken, Montgomery County, Pennsylvania, USA
8.5km (5.3 miles) ⓘBridgeport, Bridgeport Borough, Montgomery County, Pennsylvania, USA
9.2km (5.7 miles) ⓘLimestone quarry, Upper Merion Township, Montgomery County, Pennsylvania, USA
9.5km (5.9 miles) ⓘHenderson Station, Upper Merion Township, Montgomery County, Pennsylvania, USA
References
Samuel S. Gordon, pg. 218
Gordon, Samuel G. (1922) The Mineralogy of Pennsylvania. Special Publication 1. The Academy of Natural Sciences of Philadelphia 255pp.
 
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