10mm Lake Superior Eye Agate with Copper Pendant
10mm Freeform Lake Superior Agate with copper band pendant in a Sterling Silver open back bezel setting.
Lake Superior Agate. Agates are a variety of the mineral quartz, SiO2, with a hardness of 7. Probably the most popular Lake Superior agate is also one of the rarest. The highly treasured eye agate has perfectly round bands or "eyes" dotting the surface of the stone. 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