Carrara Marble Powder Room . However, if you are looking for something truly timeless, that will never go out of style and that. This top is 1 thick classic carrara marble, and will look fabulous in your bath or powder room. Eleanor 30" Freestanding Powder Room Bathroom Vanity Carrara Marble from www.pinterest.com Black vanity cabinet with under mount sink and stainless faucet. Less stark here because there is more white in the tile. Polished marble will corrode upon contact with acids (many foods and some bath products) and alkaline cleaning chemicals.