Local igneous stone and labor-intensive shaping
Claim about Diquís Stone Spheres (Bolas de Piedra) · Stance: supporting
Evidence supports production from local stone (often described as gabbro/igneous rock), shaped by pecking, grinding, and polishing rather than casting or machining.
Site
- Diquís Stone Spheres (Bolas de Piedra) Palmar, Puntarenas Province, Costa Rica
Evidence for and against
- Metropolitan Museum object entry (stone sphere as curated artifact)
- Public archaeology: hand-crafted shaping as the default explanation
Other claims about Diquís Stone Spheres (Bolas de Piedra)
- Placements likely structured social space (but context is often lost)
- Most spheres date to late pre-Columbian chiefdom period
- 20th‑century relocation and looting damaged provenance
- “Perfect sphere” claims are overstated
- Some arrangements may be deliberate—evidence is patchy
- Alternative: astronomical or “map” encoding
- Atlantis/alien narratives persist without evidence