In a full day's search on the last day of March, Mike Jacobs of Monticello and I found 121 agates. That seemed a lot to an amateur like me, whose agate hunting has been largely confined to looking ...

Thanks to fire and ice, treasures abound. This summer, agate collectors are on the hunt in eastern Minnesota and western Wisconsin, searching for rocks that can fetch as much as thousands of dollars ...

"We’ve almost died a few times," he said, recounting stories from all seasons. But it's not gold he's after — it's rocks. More precisely, agate. Finding a Fairburn agate takes dedication and ...

Known for their integrated colors and patterns, collectors are often amazed at agates that wind up on Upper Peninsula lakeshores. Known for its diversity and beauty, an agate stone is a form of quartz ...

Two women were moving rocks on a beach along the Yellowstone River the other day. “Did you lose something?” I asked. “No,” they replied. They were looking for agates. You may have seen agates in gift ...

MOOSE LAKE, Minn. — On a cold, blustery day in April, Bel and I headed to the North Shore to meet up with a rock star named Taylor, or as he’s known on social media, “Agate Dad.” Taylor is famous in ...

You never know what you're going to get when you crack open a geode-like rock called an agate, but a new specimen is even more surprising than usual: It looks just like Cookie Monster. The agate, ...

Known for their colors and patterns, collectors are often amazed at agates that turn up on Upper Peninsula lakeshores, with some known to be up to 20 pounds, according to the Michigan Department of ...

The geochemistry of agate and chalcedony in volcanic rocks represents an intricate record of silica precipitation and crystallisation processes occurring under variable thermal and chemical conditions ...