It is hard to capture in a photograph how the many parts just pass by each other at various angles.  So the computer-generated image below is better for conveying the intricacy of its structure.  Mathematically, it is based on the compound of five regular octahedra, but you do not need to understand the math to appreciate its balance and symmetry.  Of course this computer image can not capture the way light goes through the ttransparent parts and reflects off the surfaces.  So one really must see it in person to fully appreciate it visually and geometrically.