Combining fluorescence/luminescence and reflectance spectroscopy for rare earth detection

What is it about?

We combined reflectance imaging spectroscopy with extremely sensitive photoluminescence (PL) spectroscopy (sometimes also the term laser-induced fluorescence, LIF, is used), which is not yet commonly used for mineral analysis in geosciences, and applied both to natural rare earth element (REE)-enriched mineral samples from main deposits around the world. The successful cross-validation of the results proved that our method is an innovative approach for non-invasive REE identification with increased reliability and a widened range of detectable REE.

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