300 - 900 CE | clay
1300 - 1521 CE | clay
700 - 1500 CE | clay
300 BCE - 300 CE | clay, red slip
Unknown | jade
300 BCE - 300 CE | clay, slip, paint
500 - 1000 CE | clay
800 - 1520 CE | copper
300 BCE - 300 CE | clay, paint
Unknown | stone
Unknown | clay
Unknown | obsidian
Unknown | greenstone