Saudi Basalt from Western Lava Fields Named Global Heritage Stone

Basalt from Saudi Arabia’s western lava fields has been designated a Global Heritage Stone Resource by the International Union of Geological Sciences, marking the first such recognition for the Kingdom.

The Saudi Geological Survey said the designation follows scientific work documenting the geological, historical and cultural importance of basalt across western Saudi Arabia, where it has shaped both the landscape and local building traditions for thousands of years.

Much of the basalt is found across the Kingdom’s harrats, extensive volcanic lava fields formed by repeated eruptions. As basaltic lava cooled, it created the dark, rugged terrain that characterises large parts of the western region.

Beyond its geological significance, basalt has long been used in construction and settlement, while its durability and resistance to heat and erosion continue to make it useful for aggregates and infrastructure. More recent applications include basalt fibres, composite materials and insulation.

The Saudi Geological Survey also noted that some basalt quarries benefit from their proximity to roads and railways, helping reduce transport costs and improve the efficiency of supplying construction projects.

The Global Heritage Stone Resource designation is intended to recognise natural stones with documented geological importance and a longstanding role in architecture, monuments and cultural heritage.

The Saudi Geological Survey said the recognition will support research, conservation and international scientific cooperation around the Kingdom’s geological heritage.