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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Chalcedony from
Delight Quarry (Soldier's Delight Quarry; Dyer Quarry), Soldiers' Delight ridge, Delight, Baltimore County, Maryland, USA


02276140017362282326161.jpg
Chalcedony, etc.

Delight Quarry, Soldiers' Delight ridge, Delight, Baltimore County, Maryland, USA
02276140017362282326161.jpg
Chalcedony, etc.

Delight Quarry, Soldiers' Delight ridge, Delight, Baltimore County, Maryland, USA
06146430017272052672889.jpg
Chalcedony, etc.

Delight Quarry, Soldiers' Delight ridge, Delight, Baltimore County, Maryland, USA
Locality type:Quarry
Classification
Species:Quartz var: Chalcedony
Formula:SiO2
Comments:Occurs in serpentine rock.
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Quartz1
Data
Mineral Data:Click here to view Chalcedony data
Locality Data:Click here to view Delight Quarry (Soldier's Delight Quarry; Dyer Quarry), Soldiers' Delight ridge, Delight, Baltimore County, Maryland, USA
Data Identifiers
Mindat Occurrence Record ID:63559
Long-form Identifier:1:3:63559:6
GUID (UUID V4):0
Nearest other occurrences of Chalcedony
2.0km (1.2 miles) ⓘDelight, Baltimore County, Maryland, USA
2.5km (1.6 miles) ⓘUnnamed Ore Bank, Owings Mills, Baltimore County, Maryland, USA
2.6km (1.6 miles) ⓘHarris Mine, Holbrook, Baltimore County, Maryland, USA
2.8km (1.7 miles) ⓘUnnamed Chalcedony occurrence [1], Holbrook, Baltimore County, Maryland, USA
2.9km (1.8 miles) ⓘChoate Mine, Owings Mills, Baltimore County, Maryland, USA
3.1km (1.9 miles) ⓘWeir Mine, Holbrook, Baltimore County, Maryland, USA
13.7km (8.5 miles) ⓘLord Baltimore Drive Quartz occurrence area, Windsor Mill, Baltimore County, Maryland, USA
14.5km (9.0 miles) ⓘPatapsco Glen Construction Site, Woodlawn, Baltimore County, Maryland, USA
15.6km (9.7 miles) ⓘUnnamed Chromite prospects, Bare Hills, Baltimore County, Maryland, USA
15.7km (9.8 miles) ⓘBare Hills Serpentine Quarry East, Bare Hills, Baltimore County, Maryland, USA
References
Rocks & Min.:11:111
19:148.
 
and/or  
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