A pyritohedron is an irregular dodecahedron composed of identical irregular pentagons. The name "pyritohedron" derives from that fact that a common crystal form in pyrite has this shape.

# Pyritohedron

## See also

Dodecahedron, Rhombic Dodecahedron, Trigonal Dodecahedron## Explore with Wolfram|Alpha

## References

Cotton, F. A.*Chemical Applications of Group Theory, 3rd ed.*New York: Wiley, p. 63, 1990.

## Referenced on Wolfram|Alpha

Pyritohedron## Cite this as:

Weisstein, Eric W. "Pyritohedron." From
*MathWorld*--A Wolfram Web Resource. https://mathworld.wolfram.com/Pyritohedron.html