I dont have access to the specific information about Italys Grigio Argento Limestones durability or quality. However, in general, the suitability of a limestone for heavy use areas depends on its hardness, density, and ability to resist wear and tear. Some limestones may be too soft or porous and may not be able to withstand heavy traffic or frequent use. It is recommended to consult with a professional stone fabricator or an architect to determine the suitability of a specific limestone for heavy use areas.