Octahedron-plus-Twins-of-Twins

3D Model

An octahedron is duplicated by reflection 4 ways, producing twins of the original in different orientations, but with a common center. These 4 twins are then duplicated into twins. The vertices of all these octahedra lie on a sphere. These points have planes constructed between them all, producing this convex hull.

Made with vZome.