Cop Crag
Fine grained yellow/pink variegated sandstone
Quarried nr Otterburn in Northumberland, this is a very distinctive sandstone.
Cop Crags character is in its variation of colour, from its background of rusty buff to swirls of browns and
splashes of pink this stone is certainly unique, and individual.
Cop Crag has been notably used for the distinctive Victoria Gardens Shopping Arcade in Harrogate, and the
restoration of buildings at Durham Prison and Durham Castle. More recently it has been used for The Rutland Building, Edinburgh, and The Medical School, Glasgow.
Applications:
Ashlar walling
Thin cladding Fischer type system
40mm min
Dressed / Carved stone
Rock faced walling
Rubble walling
Rockery stone
External flooring / Paving
External steps / Platts
Internal flooring (requires sealant)
Specification:
Density (kg/m3)
2186
Compressive Strength (N/mm3)
89.4
Absorbtion (%)
4.62
Saturation Coefficient
0.57
Porosity (%)
17.77
Acid Immersion test
pass
Salt Crystallisation (%)
+0.99
Flexural Strength (dry/perp)(N/mm2)
12.2