English edit

Etymology edit

pyrite +‎ -o- +‎ -hedron

Noun edit

pyritohedron (plural pyritohedrons or pyritohedra)

  1. (mathematics) An irregular dodecahedron, the faces of which are identical but irregular pentagons.
  2. (mineralogy) The shape of one of the crystal habits of pyrite.

Related terms edit

Translations edit