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Old Greensand-Diatomaceous Earth Pit, Calvert Co., Maryland, USA

Latitude: 38°42'34"N
Longitude: 76°41'43"W
Diatomaceous earth and glauconitic greensand producer from the Miocene Calvert Formation.

Development Status: Past Producer

Mineral List

Glauconite
Opal
var: Diatomite



2 entries listed. 1 valid mineral.

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References

Pearre, Nancy (1961) Mineral deposits of Maryland excluding fuel, sand and gravel: U.S. Geological Survey Mineral Investigations Resources Map MR-12.

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Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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