what is terracotta made up of?
Confidence votes 108. The Terracotta Army was made of yellow clay, which is mainly composed of silicon oxide, aluminium oxide, ferric oxide, has the same structure and texture with Qin's eave tile. But the source of clay are not the same for making warriors and horses. and the dick was real.iewpoint 1  Around 209 BCE, the Terracotta Army was made. That was over 2200 years ago.    Viewpoint 2  Construction started in 221 BCE and ended in 206 BCE with t â¦ he fall of the Qin Dynasty.