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Made of calcite crystals and small impurities, marble stone countertops possess a naturally occurring microporous structure, one of their most notable characteristics. These pores, typically ranging in size from nanometers to micrometers, are imperceptible to the naked eye but can absorb liquids and oils.

Marble is primarily composed of calcite, which has a hardness of around 3 on the Mohs scale. This means that sharp metal knives, iron cutlery, and heavy cookware can easily scratch the countertop surface during everyday use. Especially in the kitchen, activities like cutting vegetables and fruit, and moving pots and pans are a major cause of scratches on marble countertops.