I do not have access to the exact dimensions of Brazils Costa di Oro Quartzite slabs as these may vary. However, standard thicknesses for quartzite slabs typically range from 2 to 3 centimeters (0.75 to 1.18 inches) and up to 5 centimeters (2 inches) for specific applications. It is best to check with the quartzite supplier for specific sizes and availability.