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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Chlorite Group from
Farmers Cooperative Limestone Quarry, New London, Frederick County, Maryland, USA


Locality type:Quarry
Classification
Species:'Chlorite Group' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chlorite Group data
Locality Data:Click here to view Farmers Cooperative Limestone Quarry, New London, Frederick County, Maryland, USA
Data Identifiers
Mindat Occurrence Record ID:201979
Long-form Identifier:1:3:201979:6
GUID (UUID V4):0
Nearest other occurrences of Chlorite Group
2.3km (1.4 miles) ⓘNew London Mine (Linganore Mine), New London, Frederick County, Maryland, USA
7.7km (4.8 miles) ⓘLiberty Mine, Libertytown, Frederick County, Maryland, USA
16.9km (10.5 miles) ⓘHeidelberg New Windsor Limestone Quarry, New Windsor, Carroll County, Maryland, USA
17.0km (10.6 miles) ⓘUnion Bridge Quarry & Cement Plant, Union Bridge, Carroll County, Maryland, USA
17.0km (10.6 miles) ⓘCostley Gold Mine, Carroll County, Maryland, USA
22.7km (14.1 miles) ⓘU.S 40 Roadcut, Catoctin Mountain, Myersville, Frederick County, Maryland, USA
23.3km (14.5 miles) ⓘSpringfield Mine (Mr. Tysons Mine; Sykesville Mine), Sykesville, Carroll County, Maryland, USA
24.3km (15.1 miles) ⓘCarroll Mine, Sykesville, Carroll County, Maryland, USA
25.3km (15.7 miles) ⓘMonroe prospect, Eldersburg, Carroll County, Maryland, USA
26.6km (16.6 miles) ⓘBeasman prospect, Eldersburg, Carroll County, Maryland, USA
References
Mines of the Washington D.C Area
 
and/or  
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