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  • Category: Culture

11 Carnelian Beads Unearthed from Sanxingdui Sacrificial Pits

On June 2, 2026, the Sichuan Provincial Cultural Relics and Archaeology Research Institute announced a significant new finding: 11 carnelian beads have been unearthed from the sacrificial pits at the Sanxingdui Ruins in Guanghan, Sichuan Province, southwest China .

Dating and Provenance

The beads date back to approximately 1200–1000 BCE (late Shang Dynasty period) and were distributed across four sacrificial pits—four beads from Pit No. 2, one from Pit No. 5, two from Pit No. 7, and four from Pit No. 8 . They were discovered alongside other high-status artifacts including ivory, gold wares, and bronze vessels, leading researchers to identify them as high-grade relics of the ancient Shu Kingdom .

Scientific Analysis Reveals Northern Origins

Through trace-element analysis and comparison with a geochemical database of 300 samples from 27 potential sources across Asia, researchers from the Institute of Geology and Geophysics of the Chinese Academy of Sciences and the Sichuan Provincial Institute determined that the raw materials did not originate locally . The findings indicate:

  • Seven of the beads show compositional signatures pointing to the Yanshan orogenic belt (in northern China)
  • Three beads point to the broader Central Asian Orogenic Belt
  • One bead's source remains unidentified but may relate to the Hexi Corridor region

All these sources are located more than 1,000 kilometers north of the Sichuan Basin .

Evidence of Long-Distance Trade Networks

This discovery makes these 11 beads the southernmost carnelian artifacts known from the same period in China . More importantly, it provides direct geochemical evidence of extensive trade networks between 1500 and 1000 BCE, spanning the southern Mongolian Plateau, the Loess Plateau, the eastern Qinghai-Tibet Plateau, the Central Plains, and the Sichuan Basin .

The research validates that more than 3,000 years ago, the ancient Shu people of the Sichuan Basin had already established stable, long-lasting exchange channels for precious goods with the northern grasslands and the Loess Plateau thousands of kilometers away .

Craftsmanship and Cultural Significance

All 11 carnelian pieces were deliberately crafted into beads, with drilled holes and polished surfaces. Evidence of long-term wear indicates they were frequently worn before being deposited in the sacrificial pits . Carnelian, an iron oxide-bearing cryptocrystalline quartz, was regarded in ancient times as a symbol of status and wealth. The beads' presence exclusively in the highest-level sacrificial pits suggests they were controlled by the elite class of the ancient Shu Kingdom, who used the acquisition of such long-distance resources as a demonstration of status and prestige .

Academic Importance

The findings were published in the Proceedings of the National Academy of Sciences (PNAS) in February 2026, representing the earliest direct geochemical evidence for long-distance carnelian exchange in Bronze Age China . The research demonstrates that the "diverse yet integrated" pattern of Chinese civilization had already taken shape and developed thousands of years ago, with extensive and in-depth exchange and interaction occurring among cultures across different regions of China during the Bronze Age .