Aidy Burrows 3D - Regarding creating little chipped stones in blender it was pretty simple in 2.80 just the voronoi texture node set to crackle and then BOOM! BUT! The new 2.81
Blender] How to create objects with Voronoi structure | STYLY
Voronoi texture different in 2.83 - CG Cookie | Learn Blender, Online Tutorials and Feedback