Ditetraswirlic hexadecachoron

The ditetraswirlic hexadecachoron, also known as the paralleloprismatic intersected 8-3 bigyrochoron or the spintet 16, is a convex isochoric polychoron with 16 identical cells.

Each cell of this polychoron has chiral trigonal symmetry, with 1 trigonal-symmetric hexagon, 3 mirror-symmetric hexagons, and 6 scalene triangles for faces.