How does the crystalline structure of marble affect its polish retention?

The polish retention of marble is heavily influenced by its crystalline structure, primarily composed of calcite or dolomite grains. These interlocking crystals determine the stone's hardness, porosity, and resistance to wear. Finer-grained marble with tightly packed crystals tends to hold polish longer due to reduced surface abrasion, while coarse-grained varieties may wear unevenly. Environmental factors like acidity and foot traffic accelerate polish loss by reacting with calcite. Proper sealing and maintenance can enhance durability, but the inherent crystal alignment remains the defining factor in long-term polish retention. Understanding this relationship helps in selecting the right marble for high-traffic or decorative applications.