Building stone as a part of a World Heritage Site: ‘Piedra Pajarilla’ Granite and the city of Salamanca, Spain

A unique granite, 'Piedra Pajarilla,' has been identified as the primary building material for many of Salamanca's monuments, now part of a UNESCO World Heritage Site. This study highlights the importance of preserving and using the original building stone for restoration to maintain architectural integrity, avoiding the pitfalls seen with alternative materials. The research emphasizes the durability and historical significance of local granites, drawing parallels with ancient Roman engineering practices that prioritized longevity and local sourcing. By analyzing the properties and historical use of 'Piedra Pajarilla,' the study advocates for its preservation to ensure the authenticity and resilience of Salamanca's heritage structures.

Pereira, D., & Cooper, B. J. (2013). Building stone as a part of a World Heritage Site: ‘Piedra Pajarilla’ Granite and the city of Salamanca, Spain. Geological Society, London, Special Publications, 391(1), 7–16. https://doi.org/10.1144/sp391.3