The Portoro Extra differs from the classic variety due to its larger and more pronounced veining; it is a highly prized stone with a deep black background and veins of gold. The extraction area is La Spezia, more precisely in Portovenere. Portoro Marble is a stone of great character and beauty; its originality and elegance make it suitable for prestigious cladding and modern and ornamental furnishings, such as fireplaces, columns, sculptures, and luxurious countertops.