Most people do their rock hunting during the day, but you have to wait until dark to find "Yooperlites." Now is the best time to search for Yooperlites and other rocks, according to Pure Michigan, ...

Here's what to know about the Yooperlite stones and where you can find them in Michigan.

HARRISVILLE, MI – These glowing rocks are known to be found along the shoreline of Lake Superior, but there’s another Michigan spot they can be picked up. Rock hunting is a popular activity at ...

Caitlin O'Kane is a New York City journalist who works on the CBS News social media team as a senior manager of content and production. She writes about a variety of topics and produces "The Uplift," ...

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 ...

Most people do their rock hunting during the day, but you have to wait until dark to find "Yooperlites." Yooperlites, sodalite-rich syenite rocks that fluoresce in the dark under ultraviolet light, ...

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 ...