Herkimer Diamond Mines, Middleville New York. A ledge mining claim at one of the famous Herkimer Diamond mines.
Gore Mountain garnet mine in New York is known for producing the hardest garnet on the planet. The garnet is 8.5 on the Mohs scale.
A large, modern, open pit quarry in northern Connecticut. Mined for decorative building stone. A source of flagstone, garnet and quartz.
Bumpus Quarry, Oxford County Maine. The Bumpus Mine is known around the world for having produced some of the largest beryl crystals ever found in the United States. Some of them remain today at the American Museum Of Natural History and the Maine Mineral & Gem Museum.
Black Mountain, Oxford County Maine. Mining at Black Mountain began in 1878 with the discovery of abundant pegmatite minerals. Black Mountain mineral specimens are in museums around the world.
Jay Teklenski at the Roy Mines. Goddard Ledge was mined for beryl, corundum and feldspar.