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A Saudi Press Agency release dated October 5 said Harrat basalt had become the first Saudi stone listed in the International Union of Geological Sciences’ global heritage-stones programme. The announcement concerns geological and cultural recognition of a material associated with the Kingdom’s volcanic landscapes.
SPA described basalt as increasingly used in construction, infrastructure and advanced industries, and said it can be easier to transport and may reduce construction and maintenance costs. Those are the agency’s stated material characteristics; the release gives no comparative engineering measurements or project examples.
The listing may support research and public understanding of Saudi geological resources, but it does not establish deposit size, commercially recoverable reserves, annual output, sales or a new quarry. No tonnage, grade, price or investment commitment is reported.
The designation is best read as a heritage and research milestone with possible relevance to building materials. Any estimate of supply or economic value would require geological surveys, production records and market data, none of which were included in the announcement.