300 BCE - 200 CE | clay
Unknown | shell
500 BCE - 500 CE | stone
300 - 900 CE | clay
Unknown | clay
100 BCE - 700 CE | jadeite
500 BCE - 700 CE | clay
1300 - 1521 CE | clay
Unknown | clay, slip
300 BCE - 300 CE | clay, slip, paint
Unknown | jade