Excerpt from Die Natürlichen Gesteine, Vol. 1: Ihre Chemisch-Mineralogische Zusammensetzung, Gewuinnung, Prüfung, Bearbeitung Unf Conservirung, Für Urchitesten, Bau-und Bergingenieure, Baugewerts und Steinmetzmeister, Sowie für Steinbruch, Befizer, Baubehörden U. F. WSn ber $oranéiegnng, baß eb £diancbenr ermiinkbt [ein mirb, non ben in ber iiiäbe ieineß qbobnorteß liegmbm ©teinbriicben Renntni8 an erlangen, babe id) beiiebem eingelnen ®eftein alle bebentenberen bentldnn unb öfterreid, iidynngarb leben 5nnbftütten anfgegöblt, aber and, bie nambafteltrn ber in anberen i'iinbern gelegenen 23riitbe nicht nnermiibnt gelafien.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.