Limestone

South transept (above) and altar (below).

"Lincoln Cathedral is one of the few English cathedrals built from the rock on which it stands. It is mostly built from Lincolnshire Limestone. The cathedral has owned the existing quarry, on Riseholme Road, Lincoln, since 1876. As of 2016, the quarry was expected to run out of stone in 2021. The cathedral's stonemasons use more than 100 tonnes of stone per year for maintenance and repairs." -- Wikipedia