Hi,
Is it difficult to make these procedural color variations materials with blender cycles
Like this made with vue from eon .
http://www.cornucopia3d.com/purchase.php?item_id=9788
http://www.cornucopia3d.com/download/store/PictureFiles/Materials/Rocks/GeoAffinity_Vue_112_1_imgM.jpg?mod=1?2
http://www.cornucopia3d.com/purchase.php?item_id=8258
http://www.cornucopia3d.com/download/store/PictureFiles/Materials/Rocks/QuadSpinner_Mineral_Infinity_Vue_112_2_img.jpg
He use only some procedural color variations mixed together with procedural bumps but with no displacement added to the sphere.
To me, this is just noise… And I love to play with noise. :eyebrowlift: I made 2 quickies:
Procedural colors. Checked! Procedural bump map. Checked! For me, the answer to your question is no. 
With a bit of experimentation (almost) anything is possible.
The blend file for this image: Forum Noisy Textures.blend (149 KB)
Explore, destroy, re-build… Have fun! 
Problem is always knowing when to stop 
and remembering the render time is increasing with each layer of noise…
Thanks kaluura for making the procedural materials , excellent starter file for me for learning how to make some of these materials