HS Consulting  -  Petrographic Services

Prof. Dr. Helmut Schleicher

Natural Stone Investigations

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natural stone provenance

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Identification and classification of natural stones

Evaluation of the provenance of natural stones

Denomination of natural stones according to EN 12440

To identify the place of origin of a given building stone or architectural stone is one of the most challenging tasks in petrographic investigation. Although a set of natural stones are easily recognizable by their unique composition and/or feature, the most of commercially available natural stones within a given class of rocks only hardly can be distinguished among each other. However, very careful petrographic investigations often enable the determination of the place of origin of a given stone, at least of a narrow geographic region, but often also down to a single quarry.

A prerequisite for any identification of a natural stone is the exact evaluation of its mineralogical composition and texture.