Biomes & Nature Crystal sub-biome

[Cave Cultist]

a sub-biome that spawns in the underground hallow (similar size and shape to marble or granite biomes)

there spawns crystal slimes that shoot lazers (think crystal mines from Hollowknight)

you could make gelatin crystal more rare in the normal caves but more common in the crystal cave

 

[wisteriablight]

crystal golems that can drop their head, stone, and crystal shards

 

[Alucard_I]

I wouldn't mind seeing some marble or granite biomes converted into crystals after EoL is defeated in the world.

 

[Planterro🌳]

I like the idea of a new biome it sounds very neat!