300 - 900 CE | clay
2000 BCE - 1000 CE | Stone, hematite
Unknown | Jade
1000 BCE - 700 CE | ceramic
jade
300 BCE - 200 CE | clay
late 19th century - early 20th century | gelatin silver process
300 BCE - 300 CE | clay, slip, paint
300 - 900 CE | jadeite
2000 BCE-700 CE | Stone
2000 BCE -- 1000 CE | Stone
1000 BCE -- 500 CE | Stone
2000 BCE-1000 CE | Stone
2000 BCE - 700 CE | Stone
Unknown | stone
