Traffic Suitability in marble engineering refers to the mineral’s capacity to withstand mechanical wear, abrasion, and compressive loads in high-frequency environments. In the framework of Modern Engineering, the suitability of Crystal Calcite (CaCO3) is no longer determined solely by its thickness, but by its Density, surface finish, and Substrate Bonding—transforming natural stone into a durable and prestigious flooring system for Smart Buildings, airports, and luxury retail.