Agate Stone Hunting on Lake Superior
MARVAC2018-11-01T12:23:19-04:00The Lower Peninsula is most well-known for its Petoskey stones, and the Upper Peninsula is known for its agate. Agate is a semi-precious gemstone formed when water vapor and carbon dioxide became trapped in solidified lava thousands of years ago - and it can be found along the shores of Lake Superior. The best stretch? [...]