Large grey jade river pebble with a greenish tinge. We acquired it in 1993 in the city of Hetian (formerly known as Khotan) which lies in the southern part of the Uyghur Autonomous Region in China. The pebble has some natural cracks. Length 5.4 cm. Width 4.8 cm. Depth 2.4 cm. Weight 92.0 grams.