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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Epidote from
Frost Quarry, Davis, Howard County, Maryland, USA


Locality type:Quarry
Classification
Species:Epidote
Formula:(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Confirmation
Validity:Unconfirmed/Questioned
Data
Mineral Data:Click here to view Epidote data
Locality Data:Click here to view Frost Quarry, Davis, Howard County, Maryland, USA
Data Identifiers
Mindat Occurrence Record ID:202023
Long-form Identifier:1:3:202023:5
GUID (UUID V4):0
Nearest other occurrences of Epidote
2.1km (1.3 miles) ⓘWoodstock, Howard County, Maryland, USA
7.2km (4.5 miles) ⓘWeber's Quarry, Ellicott City, Howard County, Maryland, USA
7.9km (4.9 miles) ⓘGaither's Quarry, Baltimore County, Maryland, USA
11.1km (6.9 miles) ⓘCarroll Mine, Sykesville, Carroll County, Maryland, USA
12.6km (7.8 miles) ⓘSpringfield Mine (Mr. Tysons Mine; Sykesville Mine), Sykesville, Carroll County, Maryland, USA
14.7km (9.1 miles) ⓘMonroe prospect, Eldersburg, Carroll County, Maryland, USA
14.8km (9.2 miles) ⓘBeasman prospect, Eldersburg, Carroll County, Maryland, USA
15.2km (9.5 miles) ⓘMineral Hill Mine, Louisville, Carroll County, Maryland, USA
16.2km (10.1 miles) ⓘMcMahon Quarry (Greenspring Quarry), Pikesville, Baltimore County, Maryland, USA
16.8km (10.4 miles) ⓘHilton Quarry, Baltimore City, Maryland, USA
References
reported by Ostrander and Price(1940) but not seen in in dumps by Bernstein (1980)
 
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