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Chilmark stone, a form of limestone, is quarried at the site.
Chilmark stone is a fine quality building stone used extensively for construction and restoration projects throughout the South of England and nationally as a match for other stones such as Reigate Stone, Malmstone and Kentish Rag. Thousands of tonnes of Chilmark Stone from Chicksgrove Quarry have been used in the restoration of Salisbury Cathedral. Recent restoration uses for the stone include Westminster Abbey Chapter House and Hampton Court Palace.
The geology exposed by the present and historical workings at Chicksgrove Quarry contribute heavily towards its classification as SSSI and access to the former quarry faces for future generations features in the quarry’s restoration plans.
The Chilmark Stone at Chicksgrove Quarry dates from the latter part of the Jurassic period so is around 145 million years old, the stone is from the upper part of the Portland Stone Formation and the very lower beds of the Purbeck Limestone Group.