Pictured here are some of the fluorite crystals I dug in the last month here in the Colorado Rockies. These are phosphorescent crystals, meaning they continue to radiate energy even after the energy source is retracted. I am using a cheapo LED UV flashlight I got online to load these crystals full of energy...I can't imagine if I had proper shortwave lamps what the glow would be! Neat stuff!
The glowing crystal in the upper left is named "Suck Time From Existence" (see far below in normal light) as it does just that as you gaze into it...it definitely has a new dimension phosphorescing in the dark!