Polyhedra

Skew apeirohedron

In geometry, a skew apeirohedron is an infinite skew polyhedron consisting of nonplanar faces or nonplanar vertex figures, allowing the figure to extend indefinitely without folding round to form a closed surface. Skew apeirohedra have also been called polyhedral sponges. Many are directly related to a convex uniform honeycomb, being the polygonal surface of a honeycomb with some of the cells removed. Characteristically, an infinite skew polyhedron divides 3-dimensional space into two halves. If one half is thought of as solid the figure is sometimes called a partial honeycomb. (Wikipedia).

Skew apeirohedron
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Available at http://mathartfun.com/DiceLabDice.html

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Related pages

Vertex configuration | Face (geometry) | Vertex figure | John Horton Conway | Pentagon | Snub cube | Schläfli symbol | Truncated octahedron | Regular skew polyhedron | Tetrahedron | Orbifold notation | Honeycomb (geometry) | Icosahedron | Chiral polytope | Cube | Polygon | Reflection symmetry | Hexagonal prism | Petrie polygon | Convex uniform honeycomb | Uniform polyhedron | Coxeter notation | Octahedron | Geometry | Surface (topology) | Square tiling | Boerdijk–Coxeter helix