Carnsew Quarry produces coarse-grained silver-grey granite products. Sited on the Carnmenellis intrusion, it is Cornwall's largest inland quarry.
Dry stone silver grey granite products for construction applications range from very large rock armour for coastal erosion protection to bulk fill, gabion fill and sub-base aggregates.
Granite is produced in a full range of sizes including:
- Type 1
- Crusher Run
- Scalpings of various sizes
- Gabion stone
- Rock armour
Carnsew granite has been used in several rock armour projects along the south coast.
Rock armour up to 10 tonnes in weight can be directly transported to target beaches by barge and tug.
The quarry is equipped with stone coating and ready mix plants.
Material can be prepared to customers' own specifications if required.
Clients include local authorities, builders merchants, and major and small works contractors.
Colas ships aggregates and armour stone from this quarry via the nearby Port of Falmouth throughout the UK and around the world.