Before revision: Concentrations of such corals as Dibunophyllum bipartitum and of brachiopod remains contribute to its attractiveness when sections are polished.Stone et al 2010 British Regional Geology: Northern England (5th edition) (Keyworth, Nottingham: British Geological Survey) pp238-254Lawrence, D.J.D et al 2004 Durham Geodiversity Audit, Durham: Durham County Council p40 Use It is cut and polished for use as ornate stone, and was much desired for church decoration, particularly during the Middle Ages.
After revision: Concentrations of such corals as Dibunophyllum bipartitum and of brachiopod remains contribute to its attractiveness when sections are polished.Stone et al 2010 British Regional Geology: Northern England (5th edition) (Keyworth, Nottingham: British Geological Survey) pp238-254 Use It is cut and polished for use as ornate stone, and was much desired for church decoration, particularly during the Middle Ages.