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 ...

The Oregon coast is known for all kinds of natural beauty. Seashells, however, are not one of them. But that doesn’t stop crowds from coming to the coast to search the sand for that one special ...

Four Corners Gem and Mineral Club will host a free lecture, “Agates versus Jaspers: what they are and how to tell them apart,” at 6 p.m. Monday at 2351 Main Ave. Member Tom Strain will bring examples ...

Jan O’Neil patiently rifled through piles of rocks Friday morning north of Cloquet. As she hunted for agates, quartz and jasper (her favorite), dust rose from the pile. She sprayed a rock with water ...