I think Bobby wants to have each fake stone layer a different texture.
As Jason (Inkydigit) pointed out you will need surfacelayers/powerfractals separately for every fake stone shader.
Jason, there's no easier way to do it. It makes perfectly sense of course to give every fake stone shader it's own set of shading if you want that done separately
I've attached an example below, it uses Ulco's scene as a base, so in order to reproduce this exactly you will need his .tgd above.