"Böttger Stoneware" - Authentic or Not?

The so-called "Böttger Stoneware", red porcelain invented by Böttger in the early 18th century, represents an independent development of high technological standard. In comparison to other ceramics Böttger stoneware is characterized by a high material density, consequently greater hardness and suitability for surface polishing. Hence museums show growing interest in obtaining objective criteria based on non-destructive methods of stoneware material analysis. In the present work the possibility of characteristic "fingerprints" for the different provenance of stoneware is tested by making use of ion beam analysis at the external proton beam, i.e. a proton beam on air.