Black Light vs UV Light for gems and minerals #science #gemstone #geology

Ultraviolet Light vs. Black Light for Rockhounding! Which is better?

Want your own UV Light? Here's the one we bought! https://www.amazon.com/gp/product/B08...

Did you know that Dave is an author? See how he pays the bills when he's not playing with rocks! https://www.amazon.com/author/davidsh...