Some of the Marble Materials I worked on for Poliigon. 100% procedural in Substance Designer.
Thank you to Matt Taylor for Feedback and for helping with these materials.
https://www.artstation.com/matt-taylor
Poliigon members can download them here: https://www.poliigon.com/search?category=Marble&type=texture
Find out more about them in the little article: https://www.blog.poliigon.com/blog/new-marble-2020