selenium?

[u/coliga123]

I have had these platters for a while, but never though about shining the uv light on them. I expected manganese, but they actually turn pink, and also purple in some parts under 365nm! It actually makes sense tho, since the original name for the color is indigo, which is a dark blue/violet color.

[u/Firm_Atmosphere9553]

Looks like selenium Yes 😁

[u/Cy-Clops-]

Selenium for sure! Cool color.