Yes, Polands Horgita Andesite can be used in a bathroom. It is a durable and non-porous natural stone that is resistant to water and moisture. It can be used for wall and floor tiles, countertops, and other bathroom surfaces. However, it is important to properly seal the stone to prevent staining and damage over time. It is also recommended to use a mild and non-acidic cleaner to maintain the quality of the stone.