Here an example with no cut on the sphere.
I use a icosaedron sphere of my own. You have to specify the maximum number of vertices. Here less than half a million. I put many choices. All the equations are in C# to go faster.
Sphere is radius 1, so as noise is scale dependant. I advise you to use 1 unit objects, but it is not mandatory. You can lower the number of vertices to go faster.
Hope it helps.
marble turbulence noise on sphere no cut.gh (24.6 KB)