FLUORESCENT MINERAL DISCLAIMER: If you are purchasing fluorescent minerals, the you should be made aware of the following:
1) Your fluorescent mineral will not “glow” without ultraviolet energy.
2) Fluorescence is not phosphorescence unless a seller says there is an afterglow. Fluorescence frequently requires a source of ultraviolet (UV) energy to emit what you see
3) UV sources are generally found in shortwave (SW), mid-wave (MW), and longwave (LW) examples. SW is emitted at 254 nanometers (nm), MW is emitted at 312 nm, and LW is emitted at 365 nm. Fluorescent minerals react differently to different wavelengths.
4) You MUST have a UV source with a high enough wattage output to see the fluorescence. A $10 retail source just won’t cut it for SW. I have found that $50-$100 is a ballpark figure to enter the field. In general, the higher the wattage, the better the fluorescence.
5) The lens of your camera has the ability to take in waves and produce a picture which looks better than your naked eye sees. Most minerals you purchase will NOT look like that with your naked eye and a low-quality UV source.
6) I have learned from experience and absolutely LOVE this hobby. I have an 11watt SW source, take still pictures with my camera, and am thrilled with the results I get. It is generally a new hobby to most people and knowledge is power. Many people have been doing this for years.
7) If you don’t understand something, then please ask questions. Most of us love to talk and learn about minerals. It is not a magic trick, but science. The right tools will hopefully lead you to years of enjoying this hobby.
8) I live within three hours of the Franklin Mineral Museum and Sterling Hill Mine. I have never been disappointed. :0)