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Image: Phosphorescent

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Description: 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.
Title: Phosphorescent
Credit: Transferred from en.wikipedia to Commons.
Author: Splarka at English Wikipedia
Usage Terms: Public domain
License: Public domain
Attribution Required?: No

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