A dual array of both rhombic and pentagonal dodecahedra on a shared cubic lattice.
This array can be constructed of blocks composed of 2 parts with a shared square base.
One part of the block is a pyramidal portion of a rhombic dodecahedron, while the other
part is a portion of a pentagonal dodecahedron. Two blocks are shown suspended from the
array. The array can be seen as a space-filling stacking of rhombic dodecahedra, or
alternatively as a stacking of pentagonal dodecahedra with spaces between cells that are
concave pentagonal dodecahedra.
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