More than 60 pieces of delicate celadon — green pottery — from the Northern Song Dynasty (960-1127) were found for the first time in Xi’an, Shaanxi province, the Shaanxi Provincial Institute of Archaeology said at a recent news conference.

The celadon came from the Yaozhou kiln in Tongchuan city, north of Xi’an. The ceramics crafted in the Yaozhou kiln, most of them celadon, had reached their peak and represented the best of North China’s pottery work.

The relics that were discovered recently, are mainly tea sets, wine utensils and sacrificial vessels. Most are in good condition, Miao Yifei, an associate researcher at the archaeology institute, said on Tuesday.

Since June, archeologists from the institute discovered more than 40 tombs from five dynasties of ancient China, ranging from the Han Dynasty (206 BC-AD 220) to the Qing Dynasty (1644-1911) in the southern suburbss of Xi’an, Miao said. Five of the tombs discovered belonged to a Northern Song family surnamed Meng.