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Portoro is a high-quality black marble. The vast crystalline black of its base is furrowed by a spectacular burst of golden veins and white effervescences. La dolce vita, glamour, exclusivity and good taste are the defining concepts of this natural stone, considered the most expensive black marble in the world.What are portoro slabs?
Portoro blocks are of medium/small size and their value is increased by their very limited availability, as a consequence of this the average slab dimension is slightly smaller than regular slabs; the thickness the blocks are cut to is always 20mm (or 3/4”).What is Nero portoro?
What is Nero Portoro? The finest black marble in the world What is Nero Portoro marble? The Nero Portoro marble quarry is based in Portovenere which is an island in La Spezia province, Liguria Region, northern Italy.Where is Nero portoro marble quarry located?
The Nero Portoro marble quarry is based in Portovenere which is an island in La Spezia province, Liguria Region, northern Italy.