Yooperlite was found in Lake Superior and named in Michigan… The beads glow under uv light, some dimly, some brighter…it seems magical! Yooperlite is a summertime craze in Michigan, with folks searching the shores of certain lakes at night! These beads make beautiful bracelets; well formed beads, with an intriguing color, and wonderful uv transformation…People loved these beads with a secret! Great Beads, not easy to find, straight holes. Speedy shipping, beads are sent in a box.