HS Consulting  -  Petrographic Services

Prof. Dr. Helmut Schleicher

Natural Stone Investigations


petrographic analysis

natural stone provenance

building restoration

natural stone damage

petrographic examination



Competent consulting services with building restoration for architects and owners

Evaluation of nature and provenance of historical building and ornamental stones

The exact knowledge about the existing original stones is a prerequisite for any building restoration true to the origin. If the essential documents are missing, a petrographical examination and determination of provenance can be necessary.

In case of unavailability of the original stone we work out recommendations for suitable alternative stones.