CaCO3 illumated by 460nm laser.

[NuGenZ3D]

This is a pretty long (14in?) piece of stalactite that I appropriated myself from a caving excursion. The stalactite is being exited by a 700mw 460nm laser. Looks like a fricken lightsaber.

 

[Cyparagon]

What material? Stalactite is a shape, not a substance last I checked. "excited" means something specific in the laser world. The word you're looking for is "illuminated," or simply, "lit."

Also, it must've formed in a... cold pool.

 

[NuGenZ3D]

What material? Stalactite is a shape, not a substance last I checked. "excited" means something specific in the laser world. The word you're looking for is "illuminated," or simply, "lit."

Also, it must've formed in a... cold pool.

A simple Calcium carbonate crystal, I will change the sentence as to not sound like I am producing a dpss laser. “CaCO3 lit by blue laser”.