Core Viewpoint - The article discusses the unique characteristics and cultural significance of a specific type of jade disc known as "youling" jade bi, which has been affected by environmental factors leading to its distinctive coloration and patterns [2][4][9]. Group 1: Characteristics of Youling Jade Bi - The jade bi has two distinct sides: one is a deep purple-blue color, while the other is a lighter gray-white, resulting from exposure to sunlight and environmental conditions [2][4]. - The jade's porous quality allows it to absorb minerals from the surrounding soil, contributing to its unique coloration [4][6]. - The jade bi was partially covered by stones during its burial, which protected certain areas from sunlight, leading to uneven coloration [9][10]. Group 2: Cultural Significance - Youling jade bi is an important ritual object in ancient Chinese culture, particularly among the Shu people, who often buried these discs near rivers as offerings to the heavens [9][10]. - The discovery of over 200 jade bi at the Jinsha site highlights the area's significance in ancient sacrificial practices [9][10]. - The jade bi's design, particularly the "high-neck" style, is a distinguishing feature that reflects the aesthetic preferences of the time [10][12]. Group 3: Public Interest and Reception - The unique appearance of the jade bi has captured the attention of various enthusiasts, leading to comparisons with modern items like coffee filters and collectible CDs [16][19]. - The jade bi's striking colors and patterns have been described as visually stunning, showcasing the allure of ancient Shu civilization's jade culture [14][21].