17-3 gyrochoron

The 17-3 gyrochoron, also known as gyrus 17, is a convex isochoric polychoron and member of the gyrochoron family with 17 identical cells. It can also be constructed as the 17-6 gyrochoron.

Each cell of this polychoron has mirror symmetry, with 2 decagons, 2 pentagons, 6 tetragons, and 2 triangles for faces.