An archaeologist shows a piece of debris of stone armor discovered in the Qindu District of Xianyang, northwest China's Shaanxi Province, Dec. 3, 2019. A production site of stone armor of the Qinshihuang mausoleum was found in a protection area in the Qindu District of Xianyang, with limestone unearthed that have the same characteristics as the stone armor of the mausoleum of the Emperor Qinshihuang of the Qin Dynasty (221 BC-207 BC), the Shaanxi Provincial Institute of Archaeology said Wednesday. (Photos: Xinhua)

Xu Weihong, a researcher of the Shaanxi Provincial Institute of Archaeology, introduces the debris of stone armor discovered in the Qindu District of Xianyang, northwest China's Shaanxi Province, Dec. 3, 2019. A production site of stone armor of the Qinshihuang mausoleum was found in a protection area in the Qindu District of Xianyang, with limestone unearthed that have the same characteristics as the stone armor of the mausoleum of the Emperor Qinshihuang of the Qin Dynasty (221 BC-207 BC), the Shaanxi Provincial Institute of Archaeology said Wednesday.

An archaeologist introduces the debris of stone armor discovered in the Qindu District of Xianyang, northwest China's Shaanxi Province, Dec. 3, 2019. A production site of stone armor of the Qinshihuang mausoleum was found in a protection area in the Qindu District of Xianyang, with limestone unearthed that have the same characteristics as the stone armor of the mausoleum of the Emperor Qinshihuang of the Qin Dynasty (221 BC-207 BC), the Shaanxi Provincial Institute of Archaeology said Wednesday.

An archaeologist shows a piece of debris of stone armor discovered in the Qindu District of Xianyang, northwest China's Shaanxi Province, Dec. 3, 2019. A production site of stone armor of the Qinshihuang mausoleum was found in a protection area in the Qindu District of Xianyang, with limestone unearthed that have the same characteristics as the stone armor of the mausoleum of the Emperor Qinshihuang of the Qin Dynasty (221 BC-207 BC), the Shaanxi Provincial Institute of Archaeology said Wednesday.

Photo taken on Dec. 3, 2019 shows the debris of stone armor discovered in the Qindu District of Xianyang, northwest China's Shaanxi Province. A production site of stone armor of the Qinshihuang mausoleum was found in a protection area in the Qindu District of Xianyang, with limestone unearthed that have the same characteristics as the stone armor of the mausoleum of the Emperor Qinshihuang of the Qin Dynasty (221 BC-207 BC), the Shaanxi Provincial Institute of Archaeology said Wednesday.