A bronze ware with black patterns was found in the No.7 pit of Sanxingdui ruins of southwestern China's Guanghan City. The piece unearthed is around three to five centimeters in length and three to four centimeters thick. Buried for more than 3,000 years, the black patterns on the bronze ware have surprised archeologists. The researchers said the black patterns were also found on the human-shaped wares that were recently unearthed, providing new clues for the ongoing archaeological research.