Photo taken on June 18, 2019 shows the 12th Xinjiang Ornamental Stone Show and the Hetian Jade Selected Expo in Urumqi, Northwest China's Xinjiang Uygur Autonomous Region. The fair attracted more than 660 exhibitors from home and abroad and included the exhibition, sale and appraisal of various ornamental stones. (Photo: China News Service/Liu Xin)

Photo taken on June 18, 2019 shows the 12th Xinjiang Ornamental Stone Show and the Hetian Jade Selected Expo in Urumqi, Northwest China's Xinjiang Uygur Autonomous Region. The fair attracted more than 660 exhibitors from home and abroad and included the exhibition, sale and appraisal of various ornamental stones. (Photo: China News Service/Liu Xin)

Photo taken on June 18, 2019 shows the 12th Xinjiang Ornamental Stone Show and the Hetian Jade Selected Expo in Urumqi, Northwest China's Xinjiang Uygur Autonomous Region. The fair attracted more than 660 exhibitors from home and abroad and included the exhibition, sale and appraisal of various ornamental stones. (Photo: China News Service/Liu Xin)

Photo taken on June 18, 2019 shows the 12th Xinjiang Ornamental Stone Show and the Hetian Jade Selected Expo in Urumqi, Northwest China's Xinjiang Uygur Autonomous Region. The fair attracted more than 660 exhibitors from home and abroad and included the exhibition, sale and appraisal of various ornamental stones. (Photo: China News Service/Liu Xin)