Stone's natural beauty and durability make it a smart choice for the bathroom. Stone can be used throughout the bathroom on the floor, counter, wall and in the shower. Stone in the shower is a beautiful design element whether large slabs or smaller tiles of stone are used. We've even seen river rock used on shower floors for an organic look. Most types of stone can be used in the bathroom, including the shower. Slabs of marble can give both a traditional and contemporary look to a shower surround depending on the style of fixtures used. One inch square tiles made from stone can be used in a mosaic pattern or border. Both tumbled and polished stone can be used in combination for a border or pattern on either the floor or walls of the shower. The slick surface of polished or honed stone is not ideal for the floor in a wet area as these surfaces can become slippery when wet. For floors tumbled stone that has a little bit of grip is a better choice. Tumble stone can be found in a number of different tile sizes. The smaller the tile, the more grout lines you'll have, which can aid in making a surface less slippery. Mixing the finishes of the same type of stone in the shower will give you more visual and textural interest while maintaining a unified design in the small space. Just remember to take into consideration how slippery the stone might be when wet, both inside and outside the shower. Source: blog.dolphincarpet.com
Source:
http://blog.dolphincarpet.com/2012/01/using-stone-in-the-shower/