19-3 gyrochoron

The 19-3 gyrochoron, also known as gyrus 19, is a convex isochoric polychoron and member of the gyrochoron family with 19 identical cells.

Each cell of this polychoron has mirror symmetry, with 2 dodecagons, 2 hexagons, 6 tetragons, and 4 triangles for faces.