Yooperlights A modern day discovery of a new fluorescent mineral. They glow! He tells us the story of discovering them and how they have been named his history what he’s doing now. It is really helped rock hounding in the Great Lakes area in a big way. Google or search “Yooperlite” and his social media pops up, yooperlites.com and see our links at the bottom of any blog at radicalrocksusa.blogspot.com remember rockhounds don’t die they petrify.