Northern exposure

This study re-examines the personal adornment assemblage from the Bela Vista tholos (Sintra, Portugal), highlighting the rediscovery of a long-lost amber bead and clarifying the chronology and provenance of associated artifacts. The bead has been identified as Baltic amber through the use of FTIR spectroscopy. This material is known to be exceptionally rare in Iberian contexts prior to the Bronze Age. Complementary analyses (MACLAS and VORTEX) link the greenstone beads to variscite and muscovite, with the variscite sourced from the Aliste mining region in northwestern Iberia. These materials suggest an initial Copper Age use of the monument, related to long-distance exchange networks centered on variscite. However, the presence of a Baltic amber bead and an associated silver coil, in addition to Iron Age ceramics and metal ornaments, provides substantial evidence that supports the hypothesis of a high-status Iron Age burial (7th-5th centuries BCE) within the reused megalith. Notably, no Iberian site has yet been found that securely associates Baltic amber with either Bell Beaker pottery or variscite, reinforcing the separate chronological contexts of these materials. This research underscores the significance of applying modern analytical methods to legacy collections, thereby challenging previous assumptions and demonstrating how prehistoric monuments were reutilized for ritual purposes over millennia

Archaeological science · Assemblage (archaeology · Bead · Beaker · Bronze Age · Chronology · Pottery · Prehistory · Provenance · Fossil Insects in Amber · Mineralogy and Gemology Studies · Pleistocene-Era Hominins and Archaeology