Skip Maine state header navigation

Agencies | Online Services | Help

Skip All Navigation

Home > Explore! > Mineral Collecting > Collector's Guide to Maine Minerals > Chapter 5 > Porcupine Hill Quarry



Almandine (garnet) and schorl (tourmaline) crystals in pegmatite, Porcupine Hill Quarry, Topsham. Harvard University specimen H126493. Photo by Vandall T. King.


Last updated on October 6, 2005