Theretra capensis (Cape Hawk Moth, Pylstertmot) encased in green glow-in-the-dark resin
This piece illuminates in green glow-in-the-dark at night like phosphorous at night in the ocean. These powders charge in the light and then glow-in-the-dark.
They can be recharged repeatedly for 20 years.
Also called photoluminescent, phosphorescent or strontium aluminate pigment.