Here is another rock. It has two displacements, a texture image and marble ray texture. Flip it around and use it however.
Textures, object, mtl, and TG example render included in rar.
https://www.dropbox.com/s/wmxwp6g57j10rdf/splotchrock.rar?dl=0
Nice. Texturing on the bottom image is reminiscent of what you might find on the seashore.
Funky little displacement image for the mottled one. The other is built into program, marble sin, saw, tri......then displaced.
Thank you...nice one.
Still around...free :)
it got lost so I got it again