Michigan visitors can search for fluorescent rocks with a UV light as darkness falls along the shoreline of Lake Superior in ...

Using a UV light after sunset, I searched the beaches of Lake Superior for Yooperlites. These rare glowing rocks only reveal ...

Rocks in the Upper Peninsula that glow under a certain light are grabbing the spotlight. "Yooperlites" — or more properly, the rocks classified as syenite — are getting a lot of attention from rock ...

A gem and mineral dealer in the U.P. has made a glowing discovery. Erik Rintamaki discovered a rock that glows under an ultraviolet light made of a mineral never seen before in Michigan. Without ...

Add Yahoo as a preferred source to see more of our stories on Google. Most people do their rock hunting during the day, but you can't find "Yooperlites" until the sun goes down. Yooperlites are rocks ...

In 2017, gem and mineral dealer Erik Rintamaki stumbled upon glowing rocks along a beach near Lake Superior. The rocks, which looked normal at first, fluoresced brilliantly underneath UV ...

DULUTH — The rest of the beachgoers, dog walkers and rock hoppers had cleared out Friday night, when Christopher Wenner was just getting started. Bent at the waist, and scanning the rocks on Duluth's ...

CHIPPEWA COUNTY, Mich. (WPBN/WGTU) -- A man in the U.P. is being credited with discovering a new kind of rock in Michigan and they're making a splash. Erik Rintamaki has been a self proclaimed "rock ...