WTB Fluorescent/Phosphorescent Stone

[Resonance.Of.Life]

Hi Dear PSers,
My 4 year old son is enamored with science and ever since seeing a video of fluorescence and phosphorescence, he's been obssessed.
Preferably a hearty stone as he is 4 years old and quite clumsy still.

 

[Avondale]

Don't know about phosphorescent stones, but for fluorescent ones I'd suggest looking into fluorite. You can find decently sized chunks of rough for pennies and it fluoresces in all different colours, depending on the specimen. It fluoresces under UV-A (long-wave UV), so think 365nm, which, although not ideal for your skin, also won't be dangerous for your boy.

This is what my rough fluorite looks like:

I also noticed that a piece of agate plate I have has a red line running through it which fluoresces bright red.

What I would also suggest is grabbing a UV torch and visiting any place that sells stones and crystals. If it glows under UV, grab it. Your boy will have a ton to explore and play with.

 

[Resonance.Of.Life]

Don't know about phosphorescent stones, but for fluorescent ones I'd suggest looking into fluorite. You can find decently sized chunks of rough for pennies and it fluoresces in all different colours, depending on the specimen. It fluoresces under UV-A (long-wave UV), so think 365nm, which, although not ideal for your skin, also won't be dangerous for your boy.

This is what my rough fluorite looks like:

I also noticed that a piece of agate plate I have has a red line running through it which fluoresces bright red.

What I would also suggest is grabbing a UV torch and visiting any place that sells stones and crystals. If it glows under UV, grab it. Your boy will have a ton to explore and play with.

Thank you for your very kind response!