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
Spring Mill Iron Ore pits, Whitemarsh Township, Montgomery County, Pennsylvania, USA


Locality type:Ore Deposit
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Spring Mill Iron Ore pits, Whitemarsh Township, Montgomery County, Pennsylvania, USA
Data Identifiers
Mindat Occurrence Record ID:1782995
Long-form Identifier:1:3:1782995:3
GUID (UUID V4):0
Nearest other occurrences of Quartz
3.5km (2.2 miles) ⓘD.O. Hitner's Mine, Whitemarsh Township, Montgomery County, Pennsylvania, USA
3.7km (2.3 miles) ⓘBullock Quarry (Geo. Bullock Quarry; George Bullock Quarry), West Conshohocken, Montgomery County, Pennsylvania, USA
5.8km (3.6 miles) ⓘWissahickon Valley, Philadelphia, Philadelphia County, Pennsylvania, USA
6.5km (4.0 miles) ⓘBridgeport, Bridgeport Borough, Montgomery County, Pennsylvania, USA
6.7km (4.2 miles) ⓘHenderson Station, Upper Merion Township, Montgomery County, Pennsylvania, USA
6.7km (4.2 miles) ⓘLimestone quarry, Upper Merion Township, Montgomery County, Pennsylvania, USA
7.1km (4.4 miles) ⓘHitner's Marble Quarry (Hitner's Quarry), Whitemarsh Township, Montgomery County, Pennsylvania, USA
7.2km (4.5 miles) ⓘComley's Quarry, Germantown, Philadelphia, Philadelphia County, Pennsylvania, USA
7.5km (4.6 miles) ⓘOreland, Springfield Township, Montgomery County, Pennsylvania, USA
9.0km (5.6 miles) ⓘKing of Prussia, Upper Merion Township, Montgomery County, Pennsylvania, USA
References
Sloto, Ronald (2019) The Mines and Minerals of Montgomery County, Pennsylvania. (Self-published).p.279
 
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