Catalogue of Rocks collected by A. LACROIX

Alfred Lacroix

Informations of catalogues that are provided on the website mainly document the concepts of the rock classifications used during the first half of the twentieth century. Consequently, significance of these informations are mainly historical. New Identification of the rocks of this collections based on modern concept is in progress. It is recomanded to potential user to consult litterature concerning the present-day rock nomenclature and equivalences between outdated and accepted present-day rock names*.

* - Le Maitre, R. W. (éditeur), 2002. Igneous rocks. A classification and glossary of term. Recommendations of the International Union of Geological Sciences Subcommission on the Systematics of Igneous Rocks. 2nde édition, Cambridge University Press, Cambridge, United Kingdom; 236pp.
  - "Dictionnaire des roches d´origine magmatique" réalisé par F.D. de Larouzière et édité dans la série des "Manuels et méthodes" des éditions du BRGM (n°20, 1989).

Catalogue of Rocks collected by A. LACROIX  >>>