Rockhounding in Great Lakes Region, Michigan, USA — Field Guide | Geo-Gem
Famous for beautiful agates and unique Petoskey stones found along the shorelines. Common finds: Lake Superior Agate, Petoskey Stone, Chalcedony, Basalt, Copper, Silver.
Famous for beautiful agates and unique Petoskey stones found along the shorelines. Common finds: Lake Superior Agate, Petoskey Stone, Chalcedony, Basalt, Copper, Silver.