Pink, green and blue tourmaline, aquamarine beryl and deep red garnet, purple amethyst and sparkling lepidolite — they all lie buried in Maine granite. To find them, all you have to do is dig — and ...
A member of the Maine Mineralogical and Geological Society holds up a piece of blue-green tourmaline found while on a field trip at Havey Quarry in Poland, Maine. Credit: Courtesy of Maine ...
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