A close-up of a colorful, patterned surface with a stylized bird emblem and the number 16.

articles

learn more about fluorescence and fluorescent materials in the articles below

Rubies glowing a bright red/pink under the light from a 365 nm UV flashlight.

365 nm or 395 nm UV lights - which is better?

And what’s a Woods filter?

10 Minerals That Glow Under UV Light

Wondering where to start your collection?

Two keychain UV flashlights, 395 nm and 365 nm.

Glowing green turtle-shaped object with a bowl on its back, held under ultraviolet light in a dark room.

20 things that glow under UV light

Some of these may surprise you!

Fluorescent or Radioactive?

Or possibly both?

A ten-dollar bill illuminated under blue light.