Copper oxide is such a beautiful material don't you think? For this project I followed a tutorial by Abe Leal 3D on Youtube for modeling, and then I optimized it, UV mapped, and textured in Substance Painter. Sweep mesh is definitely a favorite tool of mine when it comes to modeling organic assets now.
Poly Count: 24596 Tris
Youtube link: https://www.youtube.com/watch?v=sMjY9A-DTGo