Tadelakt
A polished lime-plaster finish characteristic of the Marrakech region and applied to interior walls, basins, and hammam surfaces. Lime is applied in successive layers, compressed and burnished with a smooth river stone, then sealed with black soap to produce a water-resistant, monolithic surface. Although tadelakt is more often associated with northern urban architecture, similar polished-lime techniques appear in the higher-status interiors of some southern kasbahs, particularly in reception rooms and ablution spaces.