Rhombic dodecahedron
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In geometry, the rhombic dodecahedron is a convex polyhedron with 12 congruent rhombic faces. It has 24 edges, and 14 vertices of 2 types. As a Catalan solid, it is the dual polyhedron of the cuboctah
A garnet crystal
Modell, Kristallform Deltoiddodekaeders Krantz
Rhombic triacontahedron
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The rhombic triacontahedron, sometimes simply called the triacontahedron as it is the most common thirty-faced polyhedron, is a convex polyhedron with 30 rhombic faces. It has 60 edges and 32 vertices
An example of the use of a rhombic triacontahedron in the design of a lamp.
