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Delaware, USA

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Historical workings of former Brandywine Quarry, Wilmington, DE

Brandywine Quarry, Wilmington, New Castle Co., Delaware, USA
Location is approximate, based on center of defined region.
Latitude & Longitude (WGS84): 39° 39' 2'' North , 75° 46' 14'' West (est.)
Neighbouring regions:
Museums in region:

One of the thirteen original states of the USA.

Mineral List

Mineral list contains entries from the region specified including sub-localities

39 valid minerals.

Rock Types Recorded

Note: this is a very new system on and data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Localities in this Region

This page contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


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Leavens, P. B. (1980) The minerals of Delaware: Delaware Geological Survey: Special Publication.
Picket, T. & D. Windish (compilers) (1992) Delaware: its rocks, minerals and fossils: Delaware Geological Survey: Special Publication, 18 p.
Means, J. (2010) Roadside geology of Maryland, Delaware and Washington, D.C.: Mountain Press Publishers, 346 p.

External Links

Delaware Geological Survey

Schenck, W. M. Plank & L. Srogi (2000)Bedrock geologic map of the Piedmont of Delaware (2000) : Delaware Geological Survey GM 10

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