Jade. China, Bronze Age (approx. 21st – 16th cent. BC)
Flat disc with beautiful color and grain on both sides, as well as overall good translucence. Very fine workmanship and polishing. Smooth exterior edge with oblique lowered area 6 cm), conically ground on one side of the inner opening. Milky yellow-greenish color of the jade with larger red-brown, cloudy areas (iron oxide); in backlight these are more reddish. Age-related corrosion, however altogether minor, on the surfaces as well as edges. Well-preserved.
DM AROUND 13,8 CM, INTERIOR 5,2 CM, THICKNESS AROUND 4 MM