It is a soft limestone Caen stone is extracted from an underground quarry, opened in XIth century under William the Conqueror. This quarry was used in the construction of local monuments of that time, but also in many English ones during the Anglo-Saxon period of Normandy.
In this underground quarry stone extracted gives a Caen firm in the middle of two semi-soft parts ( demi-ferme or ½ firm ). The bench height of 2 semi-soft parts is about 90 to 110 cm each; that of the firm portion is about 35 to 50 cm. The quality of the deposit does not allow to sell the farm block but a small size of 6 sawn faces. They are soft stones united beige.
Quarry capacity allows for supply of small to medium scale projects.
OTHER NAMES OR SIMILAR STONES
Caen Coquillée, Caen Banc Franc, Caen Demi Roche , Cannene
Firm or ½- firm Caen are masonry stones and are mainly used in massive facade or wall cladding. Given their history, and especially in England, they are very suited to the renovation market of cultural heritage; but it can also be used in contemporary architecture.