Collector's Guide to the Balmat Mining District Binding:Hardback because their intricate designs challenge

because their intricate designs challenge the most accomplished glassblowers to be inventive and in full control of molten colored glass

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Collector's Guide to the Balmat Mining District Binding:Hardback because their intricate designs challengeThe Balmat Mining District in southern St. Lawrence County, New York, is a former mining site known among collectors for its highly prized minerals. For more than 100 years, it was one of the world's most important sources of talc and zinc. Because most of the zinc ore was crushed underground and brought to the surface for separation, only mineral specimens brought out by miners and geologists have survived. Outstanding specimens from both the talc