Polished Yooperlite - 5 Pack

Yooperlite is a type of Lake Superior beach stone that looks like a normal gray rock in daylight but glows bright orange or yellow under UV (black) light. The glow comes from fluorescent sodalite inside the stone. Discovered around 2017 in Michigan’s Upper Peninsula, they quickly became popular with rock hunters who search for them at night along the shoreline. Rocks measure around .63" each.