Jade Plaque 商代玉璜

玉璜呈現深色，表面有明顯的老化痕跡和可能的沁色，這種特徵與長期埋藏的古代玉器相符。良渚文化和商代的玉器常因土壤環境而出現類似的色澤變化。
 
The Jade huang appears dark with visible signs of aging and possible staining, consistent with ancient jade artifacts that have been buried for long periods. Jades from the Liangzhu culture and Shang dynasty often exhibit similar color changes due to soil conditions.