Marble, or metamorphosed limestone, is a beautiful natural stone, with each rock unique to where it’s found and how it was formed. It has been in existence for many millions of years, hidden in the ground before humans brought it to light. Thanks to marble’s colors, strains and special luster — as well as its versatility — artists, architects and designers have always loved the luxurious stone.

Though marble is quarried in many countries, it is closely identified with Italy, where marble formations are spread throughout the land. The most popular variety is white Carrara, which is extracted in the Apuan Alps in north-central Italy. Calacatta and Bardiglio marbles also are from this region, which is considered the most significant Italian region for the types and volume of marble extracted. However, there are many districts famed for other types of marble. Red Verona marble comes from Veneto, Portoro from Liguria, Pietra di Trani from Apulia and Custonaci from Sicily, to name just a few.

Source: https://www.houzz.com/ideabooks/70624235/list/8-things-you-didnt-know-about-italian-marble