Pseudoplatic
Pseudoplatic is a term used in the field of crystallography to describe a type of crystal structure that is not platonic. Platonic solids are convex polyhedra with identical faces and vertices, and they are the only convex polyhedra that can tile three-dimensional space without gaps or overlaps. Pseudoplatic crystals, on the other hand, are crystals that have a structure that is similar to a platonic solid but are not platonic themselves. This can occur due to various factors, such as defects in the crystal lattice or the presence of impurities. Pseudoplatic crystals are of interest to scientists because they can provide insights into the behavior of crystals under different conditions and can be used to develop new materials with unique properties. The study of pseudoplatic crystals is an active area of research in materials science and crystallography.