Ancaster Limestone
Ancaster Limestones is a cream coloured Jurassic Oolitic limestone forming part of the Inferior Oolite Group (https://webapps.bgs.ac.uk/lexicon/lexicon.cfm?pub=INO) Upper Lincolnshire Limestone Formation. In a medium grained oolitic limestone containing shell fragments and can vary in composition between quarries. Oolites are small spherical grains of calcium carbonate which range in size from 0.2mm to a few mm. …