Four Icosahedra around a Tetrahedron


	An icosahedron is placed on each face of a tetrahedron. This arrangement is sometimes used to describe certain crystal structures (super tetrahedron, Pearce cluster).


	Contributed by: Sándor Kabai

Tetrahedron (Wolfram MathWorld)

Icosahedron (Wolfram MathWorld)

"Four Icosahedra around a Tetrahedron" from The Wolfram Demonstrations Project
http://demonstrations.wolfram.com/FourIcosahedraAroundATetrahedron/

Contributed by: Sándor Kabai

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3D Graphics
Crystallography
Polyhedra

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Icosahedra along the Edges of Icosahedra
Helices Made of Icosahedra and Rhombohedra
Four Kinds of Rhombic Polyhedra
Hexagonal Close Packing and Triangular Orthobicupola
Cluster of 195 Spheres
Rhombohedra
Expanding Tetrahedral Network
Helices of Tetrahedra
Polyhedrane
Diamond Lattice

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