Unknown | clay
Unknown | jade
300 BCE - 300 CE | obsidian
Unknown | slate
Unknown | shell
late 19th century - early 20th century | paper
300 BCE - 300 CE | clay, slip, paint
300 - 900 CE | jadeite
early 1900s | stone
Unknown | obsidian
100 BCE - 700 CE | obsidian
300 - 900 CE | clay