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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Limonite from
Castle Rock, Edgemont Township, Delaware County, Pennsylvania, USA


Locality type:Village
Classification
Species:'Limonite' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Limonite data
Locality Data:Click here to view Castle Rock, Edgemont Township, Delaware County, Pennsylvania, USA
Data Identifiers
Mindat Occurrence Record ID:360482
Long-form Identifier:1:3:360482:3
GUID (UUID V4):0
Nearest other occurrences of Limonite
3.4km (2.1 miles) ⓘSycamore Mills, Upper Providence Township, Delaware County, Pennsylvania, USA
12.1km (7.5 miles) ⓘMill Lane Farms (Great Valley Corporate Center), East Whiteland Township, Chester County, Pennsylvania, USA
12.3km (7.7 miles) ⓘSamuel Coffman Mine, East Whiteland Township, Chester County, Pennsylvania, USA
14.5km (9.0 miles) ⓘHenderson Station, Upper Merion Township, Montgomery County, Pennsylvania, USA
14.6km (9.1 miles) ⓘBrinton's Quarry, Westtown Township, Chester County, Pennsylvania, USA
15.4km (9.6 miles) ⓘGeneral Trimble's Mine, East Whiteland Township, Chester County, Pennsylvania, USA
15.7km (9.8 miles) ⓘBoothwyn, Upper Chichester Township, Delaware County, Pennsylvania, USA
15.8km (9.8 miles) ⓘOverbrook, Hestonville, Philadelphia County, Pennsylvania, USA
15.8km (9.8 miles) ⓘBrookdale Mine, Schuylkill Township, Chester County, Pennsylvania, USA
16.2km (10.0 miles) ⓘSouthwest Chester County Mine (New Chester County Mine), Schuylkill Township, Chester County, Pennsylvania, USA
References
Samuel S. Gordon, pg. 188
Gordon, Samuel G. (1922) The Mineralogy of Pennsylvania. Special Publication 1. The Academy of Natural Sciences of Philadelphia 255pp.
 
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