The beaches at Grand Marais are excellent hunting grounds for the ancient Lake Superior agate, a semi-precious stone made up of concentric circles of microcrystaline quartz reddened by iron. Here’s ...

The elusive Lake Superior agate. Rockhounds scour Lake Superior’s shoreline for these rare banded beauties—from the western reaches of the Keweenaw Peninsula to the U.P.’s easternmost Whitefish Point.

Hunting for Lake Superior Agate has been a bucket list item of mine for a LONG time. Michigan's Great Lakes are full of incredible treasures, and in my opinion the Lake Superior Agate is one of the ...

KALAMAZOO, Mich. — Although building sandcastles and jumping over the waves of the Great Lakes may be a blast, exploring Michigan's shores for ridiculously cool rocks has become a popular beachside ...

Harley Alcala says he found the mother lode of Lake Superior agates right in Lake Superior. Alcala was kayaking near his home in Hovland on the North Shore when he spotted the basketball-size rock ...

Hunting for Lake Superior agates along the St. Croix River. Eric Benson has been hunting for Lake Superior agates along the St. Croix River for the past seven years. The avid angler searches for the ...

Yooperlites are rocks that fluoresce under UV light. The best time to search for Yooperlites is after a storm, when waves may have unearthed new rocks along the shores of Lake Superior. Rock hunters ...

In 1969, the Minnesota Legislature declared the Lake Superior agate to be the state's official gemstone. Moose Lake has dubbed itself the "agate capital of the world" and Agate Days are celebrated ...