Selling the red, orange and yellow chunks of banded rock known as Lake Superior agate requires more than just owning a collection of the beautiful semi-precious gemstones. You also need to figure out ...

Add Yahoo as a preferred source to see more of our stories on Google. Known for their colors and patterns, collectors are often amazed at agates that turn up on Upper Peninsula lakeshores, with some ...

Add Yahoo as a preferred source to see more of our stories on Google. Local photographer Michael Harbeson takes striking images of volcanic agate rocks embedded in the Astoria downtown sidewalks. He ...

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 Museum ...

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 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 ...

With winter ice off the Great Lakes, spring is one of the best times to get out along the shore and search for agates. Known for their colors and patterns, collectors are often amazed at agates that ...

I think I have always been enthralled with rocks, having the rock hammer my mother bought for me more than 60 years ago hanging on the "birdroom" wall of my backwater cabin. And, even though one would ...

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 ...