Detail of the ganch wall decoration, the Throne Hall, Khudoyar Khan Palace, Kokand, Uzbekistan
Anyone who has not been to Central Asia is hardly likely to know the meaning of ganch. If one explains what ganch is it may seem highly prosaic: it is neither stone nor clay but something in between. It is obtained by firing a rock containing gypsum and clay and grinding it into a powder which is then mixed with water and a solution of vegetable glue. It then slowly solidifies as it dries out. Its shades range from light gray to light yellow. Ganch carving is one of the unique and ancient forms of artistic crafts of Central Asia.