Visual luminescence of natural margarosanite, swedenborgite and walstromite is well known for mineralogists, but their spectral characteristics and interpretation were still missing. We studied those minerals by laser-induced time-resolved luminescence technique, described the corresponding spectral and kinetic parameters and interpreted the luminescence centers as follows: margarosanite – Mn2+, Mn2+ clusters, Pb2+ and Ce3+; swedenborgite – Sb3+; walstromite – Mn2+, Eu2+ and trivalent rare-earth elements.

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