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 ...

Most people do their rock hunting during the day, but you can't find "Yooperlites" until the sun goes down. Yooperlites are rocks that fluoresce in the dark under ultraviolet light. They became known ...

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 ...

This is the incredible moment a glowing 'yooperlite' rock was found for the first time. The minerals, first discovered by Erik Rintamaki in June 2017, are said to be Sodalite gemstones that glow under ...

Yooperlites are rocks that fluoresce under UV light. The best time to search for Yooperlites is after a storm, when waves may have unearthed new rocks along the shores of Lake Superior. Rock hunters ...

Most people do their rock hunting during the day, but you can't find "Yooperlites" until the sun goes down. Yooperlites are rocks that fluoresce in the dark under ultraviolet light. They became known ...

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 ...