Sandstone; from Tianlongshan Cave 2, near Taiyuan, Shanxi province
6th centuryChinesePlaster
19th centuryItalianLimestone
4th-1st century BCEEgyptianGray limestone
16th-17th centuryChineseFritware with overglaze luster
13th centuryPersianMetal
ThaiBronze
20th centuryFrenchCopper alloy
1st millennium BCEIranianConstruction of painted cardboard with tape
20th centuryAmericanBlack basalt
18th centuryBritishBronze
20th centuryAmericanLeaded copper
2nd-1st millennium BCEGreek