Lake Superior Agate 15 x 10mm Pendant 5387/Store&Web

A bezel set 15 x 10mm free form Lake Superior Agate. An 18" sterling silver chain with a spring ring clasp is included. Lake Superior Agate. Agates are a variety of the mineral quartz, SiO2, with a hardness of 7. The combination of quartz with small amounts of different elements has created beautiful banding, varied patterns, and eye-catching colors unique to each agate. These gemstones can be found on many Lake Superior beaches throughout the states of Michigan, Wisconsin, and Minnesota