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.

Jaspers and cherts are the rocks most often confused with Lake Superior agates Lakers formed when mineral-infused solutions seeped into the gas bubbles of volcanic rocks Lake Superior agates are ...

Agate is a type of microcrystalline quartz that is characterised by its fine grain and vibrant colours. Agate is known for its banded appearance, with alternating layers of different colours and ...

No one makes eye contact. They're too intent on the ground, searching for one of Central Minnesota's oldest buried treasures: Lake Superior agates. Butch Goldenstein figures he's found hundreds of ...

Paesina stone comes from Tuscany in Italy, particularly from Florence. It is a silty limestone, formed during the Cretaceous period. The stone is marked by a 3D network of fine cracks. Groundwater ...

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 ...

Agate countertops are a stunning and luxurious addition to any kitchen. The semi-precious stone is known for its ring-patterned beauty, and you can even add backlighting to counters to make their ...

HOLDING TOWNSHIP, Minn. — Ed Opatz spotted the agate first. Look for it, he encouraged. It's got purple bands. Red bands. A perfect example. Four of us stood in a tight circle, but only Opatz saw the ...