The 4th China Ningxia Gem and Jade Appreciation Festival kicked off at the Ningxia Geology Museum on June 7. Visitors could enjoy the fine white tallow jade, pearl, agate, emerald and wonder stones during the nine-day event.

More than 20 enterprises from Xinjiang Uygur Autonomous Region, Qinghai, Heilongjiang, Yunnan, Guizhou and Guangdong provinces showcased more than 10,000 kinds of precious gem and jade at the exhibition. The free gem and jade appraisal service also attracted many collectors.