100 BCE - 700 CE | jadeite
Unknown | quartz
Unknown | obsidian
Unknown | jade
700 - 1500 CE | clay
late 19th century - early 20th century | gelatin silver process
300 BCE - 300 CE | clay, burnished red slip
300 BCE - 300 CE | clay, slip, paint
650 - 800 CE | clay, polychrome
300 BCE - 300 CE | clay
300 - 900 CE | clay
1300 - 1521 CE | clay
Unknown | clay