A stone formed over 350 million years ago, Crinoidal Limestone is defined by its deep geological character and prominent fossilisation. Revealing detailed crinoid fossils through precise hand-polishing, the material carries a rich architectural history across Northern England, specified in the 13th-century construction of Durham Cathedral and as historic paving within York Minster.

Dense, uncompromising, and highly durable, this North Yorkshire stone went out of broader use for centuries due to the sheer difficulty of working its dense structure, before re-emerging in distinction across 18th and 19th-century northern estates. Reinterpreted for contemporary schemes, Crinoidal Limestone offers an exceptionally tactile surface defined by historic weight and natural texture.