Borghini is the creme de la creme of marbles. It is the most exclusive, sought after type of marble in the world. One of the reasons it is so rare and highly sought after is because it is mined very infrequently. Anywhere from 1-2 blocks per week – roughly 50-60 slabs per block on average – whereas other larger quarries mine a lot more. For comparison sake, Bianco Carrara marble quarries mine 100 plus blocks of Carrara a week (all combined). Therefore, Borghini is a lot less common, making it very unique.