Does anyone know what mod this is from, and how to get it?

I'm coming back to modded terraria after a year or so, and im picking up from an old world. The "holographic gemstone" is something that I need to craft my next summoner weapon, but it cant be crafted (i have the reverse craft guide mod), and im not getting any results looking it up, and i looked through my modlist and i dont see it referenced anywhere