Quarry tile is unglazed ceramic tile. It is an inexpensive, durable and natural option for industrial, commercial and residential tile applications. Quarry tile is used a lot in industrial settings because it is so durable and can also be used outdoors. It has some other great qualities as well, such as being less prone to chips and scratches. In colder climates, freeze-resistant grades of quarry tile are used to prevent any weather-related problems. Like almost all tile types, quarry is porous, which means that it can become stained. Those who choose to install quarry in a kitchen generally apply a glaze-like seal or wax finish to help prevent stains and other damage. The color selection is not as vast as with other tile types, but there are several shades of red, orange, brown, gray and more. In residential applications, quarry is used for kitchens and pathways because it has a naturally coarse surface, making it less slippery than some other surfaces when wet. Strong mortar and grout is used during installation to ensure a strong hold between the tile and the floor. Use limited amounts of water when cleaning unglazed or unsealed quarry. Lots of water exposure can lead to mold growth in the grout. The water exposure can also damage the unglazed tiles.