I recently Found a few fluoreszent rocks. I live in central germany and the rocks came All from Harz Mountains ..the Oldest mines are from 1400 century and u sir have a Real beauty collection sry for my bad english😂
A 365 nm UV lamp is cheaper, safer and will work with almost all minerals except scheelite. They are also brighter as the 254 nm light "solarizes" the filter over time and gradually becomes opaque.
Certainly some of these may be worn as jewelry... although one should be careful, some minerals that are fluorescent contain Uranium which is radioactive. Many types of calcite are fluorescent but that is quite soft (Mohs 3 -not good for jewelry) Others are quite un-remarkable in visible light. That said, It is worth noting that rubies are brilliantly fluorescent as well as many diamonds.
My anxiety spiked when I witnessed the apparent lack of concern of exposing your skin (and possibly eyes) to the 254nm UV light. DNA's peak absorption of UV light is at 260nm. So 254nm can easily damage DNA and you corneas.
Always be careful....especially with eyes. And remember Duration of exposure matters. A few second one-time demo for a video, or once a year demo for class is much less than many other sources of short wavelength EM energy.