Portland Jordans Roach
Quarried at Jordans Quarry, Portland, Dorset.
The stone is an open textured oolitic limestone from the Portlandian formation (Jurassic). The stone is formed from ooliths in a micrite (fine grained calcium carbonate) matrix. It is an extremely shelly stone with a large number of holes scattered throughout it. The holes are due to the removal of fossil shells by percolating rain. The finer-grained parts of the stone is very similar to Whitbed.
Typical Portland colour – creamy/white, although the large concentrations of grey shells can darken the overall colour.
Load Bearing Masonry
Available from Albion Stone plc-