The three largest natural rock deposits in the world are true treasures of geology and history. In third place, we have the Estremoz deposit in Portugal, which stands out for its global significance. With over 200 active quarries, it supplies high-quality marble to around 100 countries. Moving up the list, we find the Danby underground marble deposit in the United States. This is recognized as the largest underground natural stone deposit on the planet and has been mined since 1902. Its magnitude is impressive both in scale and longevity. At the top is the legendary Carrara deposit in Italy. This site not only symbolizes excellence in marble but also carries a millennial history: its extraction dates back to Roman times, meaning over two millennia dedicated to mining this precious resource. Despite the grandeur of these deposits, it’s crucial to remember that ornamental rocks are finite resources. Their formation requires millions of years under extreme conditions within Earth’s cru...