Yooperlites discovered by Eric Rintamaki. Now is official and in publication. A new find of fluorescent sodalite from Michigan’s upper peninsula. These minerals fluorescent a yellowish orange color under fluorescent light. They are a delight to young and old who have found them. Your blog for the complete article and information radicalrocksusa.blogspot.com thank you, and remember rockhounds don’t die they petrify.