Greenstone Quarry, GAF Ruberoid Mill, Blue Ridge Summit, Adams Co., Pennsylvania, USA
This page is currently not sponsored. Click here to sponsor this page.
Native copper occurs in quartz veins and epidote-rhyolite host rock. Secondary copper mineralization is present. Epidote-rhyolite is quarried for use as an aggregate in the production of roofing shingles. The operation currently includes 625 acres housing quarries, mills and color processing units.
6 entries listed. 6 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.