Although both are stones and both are quarried from the earth, granite and marble (and marble’s relatives ‘ limestone, onyx and travertine) are very different from each other. Granite is one of the oldest, most durable and most respected of building materials. Traditionally, it is the material chosen by both architects and engineers when permanence, enduring color and texture, and complete freedom from deterioration and maintenance are prime requirements. The marble family ‘ limestone, travertine, marble, and onyx ‘ starts out as sediment ‘ animal skeletons and shells, plant matter, silt ‘ at the bottom of bodies of water. After millions of years this solidifies (lithifies) into stone. Because its main component is calcium, acids such as vinegar and citrus beverages can affect it.

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