Scientists Challenge Long-Held Origin Theory of Stonehenge's Altar Stone

A new study challenges the 100-year-old theory about the origin of Stonehenge's Altar Stone. Previously believed to have come from the Preseli Hills in western Wales, researchers now suggest that the stone may have originated from a different location, possibly in northern England or Scotland. The study compared the geochemistry and mineralogy of the Altar Stone with various sandstone outcrops but failed to find a match. The stone's high barium content has led researchers to explore areas with known Neolithic monuments in northern England and Scotland. This research rewrites the archaeological significance of the Altar Stone in the history of Stonehenge.