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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Pyrite from
Woodstock, Howard County, Maryland, USA


Classification
Species:Pyrite
Formula:FeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pyrite data
Locality Data:Click here to view Woodstock, Howard County, Maryland, USA
Data Identifiers
Mindat Occurrence Record ID:207303
Long-form Identifier:1:3:207303:3
GUID (UUID V4):0
Nearest other occurrences of Pyrite
2.1km (1.3 miles) ⓘFrost Quarry, Davis, Howard County, Maryland, USA
5.2km (3.2 miles) ⓘMarriottsville Quarry, Hernwood, Baltimore County, Maryland, USA
5.2km (3.3 miles) ⓘOursler Talc Quarries, Carroll County, Maryland, USA
5.5km (3.4 miles) ⓘMarriottsville Talc Quarries, Carroll County, Maryland, USA
7.2km (4.5 miles) ⓘNorthern pit, Hollofield Gabbro Quarries, Hollofield, Baltimore County, Maryland, USA
7.3km (4.5 miles) ⓘSouthern Pit, Hollofield Gabbro Quarries, Hollofield, Baltimore County, Maryland, USA
9.1km (5.7 miles) ⓘBallard Green Quartz Occurrence, Owings Mills, Baltimore County, Maryland, USA
9.1km (5.7 miles) ⓘFlorence Mine, Sykesville, Carroll County, Maryland, USA
9.3km (5.8 miles) ⓘEllicott City, Howard County, Maryland, USA
10.6km (6.6 miles) ⓘSpringfield Mine (Mr. Tysons Mine; Sykesville Mine), Sykesville, Carroll County, Maryland, USA
References
Bernstein, Lawrence R. (1980) Minerals of the Washington, D.C. Area - Issue 5 of Educational series, Maryland Geological Survey. Department of Natural Resources, Maryland Geological Survey. p.1-148.
 
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