Book 27, Question 87 · Video
Why do some minerals glow under a special lamp?
Some minerals soak up invisible ultraviolet light and give back some of the energy as visible light, so they glow bright red, green, or blue. This is called fluorescence. Fluorite is such a mineral, and it gave the effect its name. Scientists and museums use UV lamps in dark rooms to show glowing rocks. Never shine a UV lamp toward anyone's eyes.
Read the full answer →Watch on YouTubeSee the series on Amazon
What Crafty Clover says in this video
Intro
Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. Why do some minerals glow under a special lamp?
The Big Idea
Some rocks glow in bright colors under a special lamp! It looks like magic. It's called fluorescence.
UV Light
Step one: UV Light. Some minerals soak up invisible ultraviolet light and give back some of the energy as visible light. They glow bright red, green, or blue.
Fluorite
Step two: Fluorite. This glow is called fluorescence. Fluorite is such a mineral, and it gave the effect its name.
Museums
Step three: Museums. Scientists and museums use UV lamps in dark rooms to show glowing rocks. Never shine a UV lamp toward anyone's eyes.
A Closer Look
Let's take a closer look! UV is invisible. Minerals glow. Fluorite named it. Dark helps.
Quick Facts
Quick facts! Not all samples of a mineral glow in the same way. Fluorite named the effect. Best in the dark. Never aim at eyes.
Think Like a Scientist
Now, think like a scientist! With a grown-up, draw with a highlighter on paper. Turn off the lights. Shine a store-bought UV flashlight on it. Does it glow? Never shine it in eyes.
Outro
Some minerals glow under a UV lamp because they soak up invisible ultraviolet light and give back visible light. This is called fluorescence, named after fluorite. Never shine a UV lamp in anyone's eyes. Science is amazing! Keep wondering and keep exploring! Share what you learned with someone at home, and see what they think! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!