Someone donated an ash tray that contains uranium. Green glass, glows in the dark.

[Swede]

When the boss showed it to me, without thinking I said "I have a Geiger counter at home."
(which I do)

Without skipping a beat, she looks me in the eye and says "Of course you do."
She knows me.

[SheltieLover]

1. Lol

[ms liberty]

2. Very collectible. People like to display them in cabinets with a black light

The Collectibles and Secondhand Find groups show the love regularly!

[Swede]

3. What does the black light do?

I never would have thought of that.

[ms liberty]

4. Uranium glass glows, see here:

https://images.app.goo.gl/j1t6KJRcdpnFCstR8

[Omnipresent]

6. Such radiating beauty!

[electric_blue68]

10. Omg! Woah.... Eerie!

[EYESORE 9001]

5. It causes the uranium electrons to fluoresce

Resulting in a beautiful green glow. Your Geiger counter will find the piece to be no danger to the public, emitting safe amounts of radiation.

[Marthe48]

7. I've been saving any pieces I find

I learned that Fenton yellow custard glass glows green under a black light, too. One of my grand kids liked the effect, not sure if they will collect, but if they do, I have several pieces of uranium glass, in case they want it.

[AllaN01Bear]

8. urainium glass.

https://www.orau.org/health-physics-museum/collection/consumer/glass/vaseline-uranium-glass.html

[womanofthehills]

9. At Univ of NM in the 70's - we had uranium and lead powders in jars in our ceramics class

Uranium would give a nice orange glaze. Most of us stayed away from it but our professor often used it.

We would make up 3 gallon buckets of glaze, throw in formaldehyde and stir it with our arms. Those were the days?