Small celadon colored river pebble from the White Jade River in Hetian (formerly known as Khotan). Hetian lies in the Uyghur Autonomous Region in China, famous for its fine quality nephrite. The pebble has some clouding on the inside. Length 3.3 cm. Width 2.1 cm. Depth 1.2 cm. Weight 12.5 grams.