Hello
I’ve searched everywhere on the web but I didn’t found an example for iridescent/pearlescent/dichroic material. Maybe because it is impossible to accomplish it in zbrush 
What do you think, is-there a way ? 
Hello @MrCedric ,
I would start with the Fresnel Overlay material, and explore the various BPR filters. Depending on your material goals, some sort of transparency or environmental reflections may also be useful.
Good luck!
I don’t really know how to make it, I’m relatively new to zbrush
And the material editor is really different to my other software (houdini, maxwell, blender) 