DON'T MISS
U.S. State Rocks, Minerals & Gemstones
What do emerald, coal, marble, galena, agate and serpentinite have in common? Geologically and mineralogically speaking, not much. Yet all share membership in a...
POPULAR
Yooperlites: What & Where to Find Them
Yooperlites are fluorescent sodalite-bearing rocks found along the shores of the Great Lakes in Michigan’s Upper Peninsula and along Lake Superior. Collecting fluorescent rocks has...
8 Rocks Found on Lake Michigan Beaches
Lake Michigan beaches are home to the nation’s longest freshwater coastline (3,288 linear miles). Michigan is surrounded by four of the five Great Lakes...
