Marble is a metamorphic, crystalline rock formed by the intrusion of an igneous rock into a limestone stone mass. The heat and pressure of such an event alters the original molecular structure of the calcite present in the limestone and causes re-crystallization of the calcite and the formation of new minerals. The result is marble with the much appreciated characteristics of heavy veining and wide range of colors. Marble surfaces take a high polish but are not very hard and scratch easily. Its natural composition makes marble an easy target for acids normally found in food and cleaning products. The acids etch the marble surface, damaging the polished finish. Marble is a porous stone and requires preventative sealing with silicone-based impregnators. With proper maintenance using neutral products, marble performs extremely well. It is not recommended for use in kitchens.
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