Longshan or Erlitou culture, c. 2000 - c. 1700 BCE
L. 37.2 x W. 8.8 x Thickness 0.6 cm (14 5/8 x 3 7/16 x 1/4 in.) Weight 318 g
Mottled cream and grayish opaque nephrite
11th-10th century BCEChineseTranslucent light gray stone with white speckles
20th centuryChineseOlive-brownish, largely calcified nephrite
11th-8th century BCEChineseCeladon-green nephrite
3rd-1st century BCEChineseCream-colored nephrite with gray markings
12th-11th century BCEChineseGlossy, translucent, light greenish and buff, slightly calcified nephrite
4th-3rd century BCEChineseTranslucent olive-green, partly discolored nephrite with traces of red pigment
11th-8th century BCEChinesePale celadon-colored, translucent nephrite with light and dark brown markings
4th-3rd century BCEChineseCopper
19th centuryTibetanOpaque, cream-colored, cinnabar-stained nephrite
11th-10th century BCEChineseLight yellow-green nephrite, calcified around the edges and on the reverse
14th-8th century BCEChineseOpaque ivory-white nephrite altered to chalky white with red cinnabar accretions
18th-16th century BCEChinese