Marble has been used for centuries in a variety of applications, including floors, walls, showers and countertops. Marble is a soft rock and can be etched and stained. Although sealers can help to prevent this, marble will naturally develop a patina. Although it is still stunning, it doesn’t remain the same bright white as it was when it was purchased. Marble is used often for countertops in homes that bake or make candy. It stays cool to the touch.