Double Rhombic Icosahedron
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This Demonstration shows the structure of the double rhombic icosahedron. It consists of 10 prolate rhombohedra (on the inside), 10 rhombic dodecahedra of the second kind, 2 rhombic icosahedra, and 10 oblate rhombohedra (on the outside).
Contributed by: Izidor Hafner (January 2012)
Open content licensed under CC BY-NC-SA
The structure of rhombic icosahedron and double rhombic icosahedron was observed by Japanese mathematician Koji Miyazaki in 1977.
 W.W. R. Ball and H.M.S. Coxeter, Mathematical Recreations and Essays, 13th ed., New York: Dover, 1987 p. 161.
"Double Rhombic Icosahedron"
Wolfram Demonstrations Project
Published: January 11 2012