Hornton Stone is a sedimentary rock formed in the Jurassic period approximately 160 million years ago. It is made up of a blue/grey limestone or calcium carbonate, however the stone has some iron ore content. This oxidises with the stone creating a brown/orange colour.Horton stone was quarried by Hornton Quarries Ltd, latterly known as, ‘Hornton Masonry Company Ltd.’ They had two quarries; one at the village of Edge HIll of brown Hornton stone, suitable for chopped walling, which is now exhausted. They also owned a quarry towards the village of Hornton that was quarried for ‘blue’ Hornton stone.’Blue’ Hornton stone was used for Architectural and monumental masonry and was also suitable for paving. ‘Brown’ Horton stone was quarried in the Cotswold area and was traditionally known as ‘Cotswold Stone.’
Hornton Masonry Company Ltd went into liquidation in December 2008.
Stone quarried from the village of Great Tew is an iron stone/limestone with iron ore content. It is used predominantly for walling and architectural masonry. It is now generally used instead of Hornton Stone.
Hornton Stone is a popular stone across most of Oxfordshire and the Cotswolds due to it’s attractive appearance and good weathering properties. As well as many local houses and buildings in the area being made from it, Hornton Stone was used extensively in the constructed many of the prestigious Oxford colleges.