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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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