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Moores Mill, Mount Holly Springs, Cumberland Co., Pennsylvania, USA

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Latitude & Longitude (WGS84): 40° 7' North , 77° 15' West
Latitude & Longitude (decimal): 40.1166666667, -77.25


Ref.: Gordon, Samuel G. (1925), "Variscite (=Peganite=Lucinite) and Other Phosphates, from Moore's Mill, Cumberland Co., Pennsylvania," Mineral Note No. 2:4-7, Academy of Natural Sciences of Philadelphia Proceedings, Vol. 77, (1926).

Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 960, 964, 998.

Reed, Juliet C. (1976), Annotated Bibliography of Minerals New to the Pennsylvania List 1965-1974, The Mineralogical Society of Pennsylvania, Inc.: 76;

Mineralogical Record (1980): 11(Sep-Oct): 311.

A phosphate deposit located about 4 miles West of Mount Holly Springs. Workings feature a large pit (100 feet diameter by 25 feet deep) plus smaller trenches.

Mineral List


11 valid minerals. 1 erroneous literature entry.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Cambrian
485.4 - 541 Ma
Tomstown Formation

Age: Cambrian (485.4 - 541 Ma)

Stratigraphic Name: Tomstown Formation

Description: Massive dolomite containing thin shaly interbeds.

Lithology: Major:{dolostone}, Minor:{shale}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



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