Fluorescence can be a useful tool in examining geological specimens. While some minerals from particular locations are quite strongly fluorescent, even the weaker fluorescence of other specimens can aid in their detection and identification. The longwave ultraviolet and royal blue excitation wavelength sets of the Stereo Microscope Fluorescence Adapter are particularly useful for examining samples. NIGHTSEA collaborated with a professional geologist in an investigation of the fluorescence of minerals under blue light excitation.
Trade-offs between the longpass and bandpass (green-only) filters for use with the Royal Blue excitation.
There are two types of approaches to answering the question of whether something fluoresces – empirical (try it and see) vs scientific (make careful measurements). Read to learn the difference.
With fluorescence, what you see depends on how you excite and view the subject – the interaction of the excitation wavelength, the fluorescing substance, and the barrier filter.