The Hongshan Culture celadon jade ornament is of flattened angular form, pierce carved on the center, the jade is of celadon-black and russet color tone.|Hongshan Culture period.||Height: 1/4 in (0.6 cm) Length: 5 in (12.7 cm) Width: 3 in (7.6 cm)|紅山青玉勾雲佩|玉質為青綠色，器上雜有黃褐色沁斑。薄片雕，器邊緣呈雙面刃狀，表面隨器形磨出寬凹槽，槽底刻單陰線，鑽有四個牛鼻孔。此種獨特技法，唯紅山文化玉器多見，為紅山文化典型玉器。