Negro Marquina Porcelain Slab has all of the exceptional design elements you expect from a porcelain tile with the added benefit of reduced grout lines. Negro Marquina Porcelain Slab is an elegant rich black tile design with white veining all throughout. Long-distance delivery of porcelain slabs requires a custom-made A-frame, specialized tools, and express delivery. If your job is outside of Southeast Florida, please request a quote.