Image: Crystal group 1: Cubic - Pyritohedron
Crystal group 1: Cubic - Pyritohedron
- Australian Museum Design Unit
- © Australian Museum
- Cubic (cub): (also known as Isometric) where the length of all axes are equal and the angle between each axis is 90°.
- Pyritohedron: this is an irregular dodecahedron. Like a regular dodecahedron, it has twelve identical pentagonal faces. However, these pentagons are not regular in size. Although completely regular dodecahedra do not actually exist in crystals, the distorted pyritohedron form occurs in the crystal pyrite, on which the geometric term may be based.