We bought a retired geologist’s collection and this Zebra Stone or Zebra Jasper free form was part of it. It would seem river tumbled.
I have no details about where its from as the geologist had lost his notes. I believe it to be Australian as was were all the large pieces in his collection.
This Zebra Stone or Zebra Jasper free form will appeal to another geologist. It will also be liked by someone who does likes their rocks as natural as possible. You can see it at Crows Nest.