Small translucent white river pebble from the White Jade River in Hetian (formerly known as Khotan). It has a natural crack and a brown spot on one side. Hetian lies in the Uyghur Autonomous Region in China, famous for its fine quality nephrite. Length 2.1 cm. Width 1.8 cm. Depth 1.2 cm. Weight 5.9 grams.