Off Route 4 at the Village Green
Grafton, NH 03240
In 1803 Sam Ruggles discovered Mica in Grafton.
Rediscover this 191-year-old, spectacular open-pit mine: shining white walls, huge rooms, and tunnels. Over 150 minerals: mica, feldspar, beryl, amethyst, rose/smokey quartz, garnet, and Uranium minerals (gummite, autunite) prized by collectors/museums.
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