United Kingdom · Limestone
also known as Portland Limestone, Portland White
The stone of St Paul's Cathedral, Buckingham Palace and the Palace of Westminster. Portland Stone is a creamy-white oolitic limestone from the Isle of Portland, Dorset, known for its consistent texture and remarkable weathering — it self-cleans over decades on exterior facades due to its oolitic carbonate structure.
Type-level physical facts shown. Per-lot lab values (absorption, flexural strength) confirmed at quotation.
Yes — its oolitic structure allows CO2 to re-carbonate the surface, creating a hard crust that self-cleans in rain. This is why London's finest buildings have remained white for centuries.
Absolutely. The main quarry operators (e.g. Albion Stone) hold substantial stock and export globally. Dressed ashlar, sawn slabs and CNC-machined pieces are all available.
