At the Rochester Mineralogical Symposium in 2022 Madeline Murchland gave a very nice presentation about fluorescence spectroscopy and zoning in apatite. Here is a recording of her talk.
Cataract Surgery and Fluorescent Minerals: Changes in Color and UV Sensitivity
Cataract surgery can produce noticeable changes in the way fluorescent minerals—and colors in general—appear. These changes result...