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 ...

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 ...

GRAND MARAIS, Minn. — Among the many pastimes popular in Minnesota is agate hunting -- scanning the shores of Lake Superior for the official state gemstone. Relatively easy to find in the summer when ...

With the gales of November rolling in, anyone ready to bundle up in raincoats and waterproof boots may have luck spotting Lake Superior agates and other cool rocks. Late-fall weather already whipped ...

DOUGLAS -- Chase Anderson can sometimes barely recall what he did yesterday, but ask him about his collection of agate, a popular gemstone, and he has a story about each and every one of them. The ...

MINNEAPOLIS — Lake Superior is the largest freshwater lake in the world — a sea known for its pristine cold water. But in a warming world, that's changing. Before dawn, a crew boards the Blue Heron, ...

For the past 20 years, Jesse Lofgren has slowly amassed a collection of Lake Superior agates. But when he returned from a monthlong business trip earlier this week, Lofgren discovered that $60,000 ...

Turning Lake Michigan’s beach bounty into keepsakes. Here, beach finds are a sure thing. These geological gifts have been shaped over millennia by water, wind and time, resulting in colorful and ...

Appears in exhibition catalog as entry no. 63 (Sale info: TO BE DISTRIBUTED). No. 7. 1847. June 1. The American Art-Union: Plan of the Institution, List of its Officers, and Catalogue of Paintings, ...

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 ...