In our mind materiality is rather stereotypical. We imagine each material to have ist own attributes, like appearance, texture and surface feel. Ehat happens when a material is changed immensly but it is used for similar objects? ALTER EGO is a series of large barrel spahed porcelain vessels, which went through diverse tranformations in appearance and attributes by adding different substances to the porcelain. Through manipulation of traditional production techniques different textures of porcelain were developed, which deviate from traditional porcelain both in surface and in chemical structure. For this project nearly 200 material experiments were developed.