Not only are fine minerals exceptionally beautiful in their own right - many mineral collectors prize the secret color changes that occur when minerals are exposed to UV light. Only about 15% of minerals have the ability to fluoresce, and the fluorescence that occur requires the use of UV or blacklight.
Fluorite, calcite, and adamite are common mineral that fluoresces, but it's not uncommon for ruby, kunzite, diamond, opal, zektzerite, sodalite, selenite, topaz and more to often react beautifully with UV light.