The color of this pebble changes from grey to slightly translucent greyish celadon. It entered the collection from Shanghai in 2017 but it originally came from the city of Hetian (formerly known as Khotan) which lies in the southern part of the Uyghur Autonomous Region in China. Length 4.3 cm. Width 2.8 cm. Depth 1.4 cm. Weight 24.5 grams.