2. Palermo Mine
Situated in North Groton, the Palermo Mine is another popular rockhounding spot in New Hampshire. Known for its rare and beautiful tourmaline crystals, this mine attracts rockhounds from all over the country. The tourmaline crystals found here come in various colors, including pink, green, and blue, making it a must-visit location for gemstone enthusiasts. Keep in mind that the Palermo Mine is privately owned, so it's essential to obtain permission before visiting.