I’ve always loved fluorescent minerals ever since my first rock show! The displays they set up with the UV lights are so cool. Fluorescence is when a mineral is able to absorb and then release small amounts of light. The ability to fluorescence is dependent on the individual specimens chemical make-up, so you never know if it is fluorescent till you test it! If you want to learn more check out this article on Geology.com! Our Fluorescent kit is a great place to start your fluorescent mineral collection. It includes 9 specimens, a magnifier, a streak plate, an educational guide and a special UV light pen that can also write secret messages!