Claim to fame: Lake Superior agates are the oldest agates on earth, formed 1.2 billion years ago. The next oldest are the Montana moss agates, a mere 370 million years old.

Size: Lake Superior agates range from about the size of a pea up to 20 pounds. Color: Red, orange and yellow, ... Moss agates have tree-branch-shaped bits of minerals trapped in them.

Allan Johnson found his first Lake Superior agate when he was 10 years old, and he’s been collecting “Lakers” for more than 25 years. Elsie Glascock began collecting the agates when she was ...

Lake Superior agates: From find to finish For agate collectors, the search is a hunt for buried treasure. Fewer rocks and fewer places to search don't diminish the thrill.

But this weekend I’m in Grand Marais for the coveted Lake Superior agate—a semiprecious gemstone formed 1.1 billion years ago by processes that scientists still don’t fully understand.

GOLDEN VALLEY, Minn. - Minnesota's state gemstone is the Lake Superior agate, and for years it has fascinated those young and old. In response to a viewer question from our kiosk at the Science ...

Now, those deposits — “agates,” generally, and “Lake Superior” ones, specifically — are strewn across the Midwest, nestled in gravel pits and along Northland roads and beaches, ...

A Wright County man is asking those who collect and sell rocks to be on the lookout after his unique collection of Lake Superior Agates worth tens of thousands of dollars was stolen.

Zganjar said he has a large collection of agates from over the years, but this is the first time he'd ever been able to pluck them from Lake Superior through several inches of ice. To stream KARE ...

What’s more peaceful than walking down the beach and looking for that perfect rock? For one woman in the Upper Peninsula’s village of Grand Marais, those rocks have a very special meaning ...

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 ...

A Wright County man is asking those who collect and sell rocks to be on the lookout after his unique collection of Lake Superior Agates worth tens of thousands of dollars was stolen.