Enlyum

A purple Nylium variant for the End, functioning just like Crimson/Warped Nylium.

Spreading

Enlyum spreads onto nearby End Stone that has open air above it, and reverts back to End Stone if something solid covers it. You can also bonemeal it to spread across several nearby blocks at once.

Natural generation

Enlyum generates on its own as patches and larger clusters directly in End Stone terrain — you'll find it out in the world, not just from spreading your own.