From the archive record
Abstract forms are used especially in the plinth, minarets, gateway, mosque, and jawab, and to a lesser extent on the surfaces of the tomb. The domes and vaults of the sandstone buildings are worked with tracery of incised painting to create elaborate geometric forms. The incised painting technique is to scratch a channel in the stone, and to then lay a thick paint or stucco plaster across the surface. The paint is then scraped off the surface of the stone, leaving paint in the incision. On most joining areas, herringbone inlays define the space between adjoining elements. White inlays are used in the sandstone buildings, dark or black inlays on the white marble of the tomb and minarets. Mortared areas of the marble buildings have been stained or painted dark, creating geometric patterns o