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Glauconite from
Polk's Marl pits, Middletown, New Castle County, Delaware, USA


Locality type:Pit
Classification
Species:'Glauconite' (not an IMA approved species)
Formula:K0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Glauconite data
Locality Data:Click here to view Polk's Marl pits, Middletown, New Castle County, Delaware, USA
Data Identifiers
Mindat Occurrence Record ID:109333
Long-form Identifier:1:3:109333:9
GUID (UUID V4):0
Nearest other occurrences of Glauconite
28.5km (17.7 miles) ⓘClemente Sand Wash, Pennsville, Pennsville Township, Salem County, New Jersey, USA
95.6km (59.4 miles) ⓘVivianite Concretion Locality, Riva, Anne Arundel County, Maryland, USA
References
Dana, Edward Salisbury; Dana, James Dwight (1892) A System of Mineralogy (6th ed.). John Wiley & Sons, Inc.
 
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