Triangular duotruncatoalterprism

The triangular duotruncatoalterprism is a convex isogonal polychoron and the first member of the duotruncatoalterprisms that consists of 6 triangular prisms, 12 triangular cupolas, 9 rectangular trapezoprisms and 9 tetragonal disphenoids obtained as the convex hull of two orthogonal triangular-hexagonal duoprisms. However, it cannot be made scaliform.