Maine Geological Survey
3-M-2. Inside the Dunton tourmaline mine, Newry, showing the openings that accessed the tourmaline pockets. MGS field trip.
Project Name: Thompson NGGDPP Grant 2020
Exact Creation Date
Credit must be given to the photographer and the Maine Geological Survey when this photo is displayed, reproduced, distributed and/or used in derivative works.
Dunton mine; tourmaline; granite pegmatite; Newry