State Academy of Art and Design Stuttgart 1 article published in JoVE Chemistry X-ray Powder Diffraction in Conservation Science: Towards Routine Crystal Structure Determination of Corrosion Products on Heritage Art Objects Robert E. Dinnebier1, Andrea Fischer2, Gerhard Eggert2, Tomče Runčevski1, Nanna Wahlberg3 1Max-Planck-Institute for Solid State Research, 2State Academy of Art and Design Stuttgart, 3Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University Modern high resolution X-ray powder diffraction (XRPD) in the laboratory is used as an efficient tool to determine crystal structures of long-known corrosion products on historic objects.