475 BCE - 221 BCE
9.1 x 2.2 x 0.5 cm (3 9/16 x 7/8 x 3/16 in.) unspecified: 26 g
Calcite
3rd century BCE-3rd century CEChineseBlack nephrite
11th-8th century BCEChineseLight green and brownish, strongly translucent nephrite
4th-3rd millennium BCEChineseLight green and tan nephrite with traces of calcification
14th-11th century BCEChineseTranslucent light gray stone with white speckles
20th centuryChineseLight gray, greenish, and bone-colored, faintly translucent stone
6th-5th century BCEChineseHeavily altered nephrite
6th century BCEChineseTortoise-shell colored nephrite with areas of incipient calcification
4th-3rd century BCEChineseEvenly light brown and cream-colored, partly calcified nephrite
5th-3rd century BCEChineseLight brown and gray nephrite with traces of cinnabar
12th-11th century BCEChineseGreenish nephrite, decomposed and turning opaque and whitish
11th-8th century BCEChineseOlive-green nephrite
1st millennium BCEChinese