Ref.: Dana 6:1068; Rocks & Min.:59:109-120 & 62:176-178; Reed, Juliet C., Annotated Bibliography of Minerals New to the Pennsylvania List - 1965-1974, Min. Soc. of PA, Inc. (1976): 70-71; Montgomery, Arthur (1969), "Revised List of PA Minerals," Mineralogy of PA, 1922-1965: 4. A granitic pegmatite in the Wissahickon Formation. Owned by John O. Deshong and started before 1844. Closed before the 1930's. Now flooded and used as a reservoir.
Mineral List
27 entries listed. 19 valid minerals.
The above list contains all mineral locality references listed on mindat.org. 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 mindat.org 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.