Olive oil, though it’s dull under regular light, is a fluorescent substance.
Hit a clear glass of olive oil with a green or blue-violet laser.
It’s not just lasers that will get the olive oil to fluoresce.
Hitting it with ultraviolet light, a black light, will make it fluoresce a bright yellow color.
What liquids glow under black light?
White paper shines under black light because of the florescent chemicals added to whiten the paper. Petroleum jelly, such as Vaseline, glows as well. Quinine, which is in tonic water and club soda, makes those beverages shine a white-blue in black light.
What foods glow in blacklight?
Food That Glows in Black Light
- tonic water (bright blue because of the quinine that is an ingredient)
- cooking oil (yellow to greenish-yellow)
- olive oil (orange)
- eggs (shell is dark violet-red, egg white is bright pale yellow)
- honey (golden yellow)
- pineapple (vivid blue fruit, mostly reflected light, outside doesn’t glow)
What can you see under a blacklight?
Other Things That Glow Under Black Light
- Petroleum jelly, such as Vaseline, glows a bright blue color under a fluorescent light. (see a photo)
- Uranium glass or vaseline glass.
- Rock salt.
- Fungus that causes Athlete’s Foot (supposedly glows orange)
- Turmeric (a spice)
- Olive oil.
- Canola oil.
- Some postage stamps.
Does tonic water glow under black light?
Under an ultraviolet “black light,” the quinine in tonic water makes the water fluoresce a brilliant, bright blue (even though only a relatively small amount of quinine is dissolved in the water).
Photo in the article by “Cecyl GILLET”