Compound of small stellated dodecahedron and great dodecahedron

The compound of the small stellated dodecahedron and the great dodecahedron is a fascinating geometric arrangement that combines two polyhedra. 1. **Small Stellated Dodecahedron**: This is a non-convex polyhedron formed by extending the faces of a regular dodecahedron. It has 12 star-shaped faces (which are actually pentagrams) and possesses 20 vertices and 30 edges.