An example of phosphorescence. Europium doped strontium silicate-aluminate oxide powder (cyan pigmented). Shown under visible light, long-wave UV light, and in total darkness.
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2005-08-18 01:46 Splarka 1320×580×8 (65819 bytes) An example of phosphorescence. Europium doped strontium silicate-aluminate oxide powder (cyan pigmented). Shown under visible light, long-wave UV light, and in total darkness. {{PD-user|Splarka}})